Question 1 2 pts

A consumer analyst reports that the medium vivacity of a sure character of alkasuccession battery is further than 36 months. Write the trifling and resource hypotheses and hush which is the right.

Ho: μ = 36 (claim), Ha: μ ≥ 36

Ho: μ > 36 (claim), Ha: μ ≤ 36

Ho: μ ≤ 36, Ha: μ > 36 (claim)

Ho: μ ≤ 36, Ha: μ < 36 (claim)

Question 2 2 pts

A transaction rights that the medium date that customers hold restraint labor is at most 3.5 minutes. Write the trifling and resource hypotheses and hush which is the right.

Ho: μ > 3.5 (claim), Ha: μ > 3.5

Ho: μ > 3.5, Ha: μ ≤ 3.5 (claim)

Ho: μ ≤ 3.5 (claim), Ha: μ > 3.5

Ho: μ ≥ 3.5, Ha: μ ≤ 3.5 (claim)

Question 3 2 pts

An amusement ring rights that the medium daily apparatus is at smallest 12,000. Write the trifling and resource hypotheses and hush which is the right.

Ho: μ > 12000 (claim), Ha: μ = 12000

Ho: μ ≤ 12000, Ha: μ > 12000 (claim)

Ho: μ = 12000, Ha: μ ≤ 12000 (claim)

Ho: μ ≥ 12000 (claim), Ha: μ < 12000

Question 4 2 pts

A deportment construction rights that the medium excursion date betwixt two destinations is environing 17 minutes. Write the trifling and resource hypotheses and hush which is the right.

Ho: μ = 17 (claim), Ha: μ ≤ 17

Ho: μ ≠ 17, Ha: μ = 17 (claim)

Ho: μ > 17, Ha: μ ≤ 17 (claim)

Ho: μ = 17 (claim), Ha: μ ≠ 17

Question 5 2 pts

If the trifling fancy is referable exceptional when it is mock, this is designated __________.

the Empirical Rule

a character I error

an resource fancy

a character II error 

Question 6 2 pts

A student rights that the medium gestation age restraint a fox is 50.3 weeks. If a fancy ordeal is executed that throw-bys the trifling fancy, how would this judgment be interpreted?

There is referable competent manifestation to prop the student’s right that the gestation age is 50.3 weeks

There is competent manifestation to prop the student’s right that the gestation age is 50.3 weeks

There is referable competent manifestation to prop the student’s right that the gestation age is further than 50.3 weeks

The manifestation indicates that the gestation age is near than 50.3 weeks

Question 7 2 pts 

A marketing construction rights that none of its employees are compensated stint wage. If a fancy ordeal is executed that fall-shorts to throw-by the trifling fancy, how would this judgment be interpreted?

There is competent manifestation to prop the right that some of the employees are compensated stint wage

There is referable competent manifestation to prop the right that some of the employees are compensated stint wage

There is referable competent manifestation to prop the right that none of the employees are compensated stint wage

There is competent manifestation to prop the right that none of the employees are compensated stint wage

Question 8 2 pts

A sprinkler creator rights that the medium activating skys is at smallest 135 degrees. To ordeal this right, you strayly fine a specimen of 32 systems and confront the medium activation sky to be 133 degrees. Assume the population flag derangement is 3.3 degrees. Confront the flagized ordeal statistic and the similar p-value.

z-ordeal statistic = 3.43, p-appraise = 0.0006

z-ordeal statistic = -3.43, p-appraise = 0.0006

z-ordeal statistic = -3.43, p-appraise = 0.0003

z-ordeal statistic = 3.43, p-appraise = 0.0003

Question 9 2 pts

A consumer order rights that the medium aid date from 0 to 60 miles per hour restraint a sedan is 7.9 seconds. A stray specimen of 33 sedans has a medium aid date from 0 to 60 miles per hour of 7.6 seconds. Assume the population flag derangement is 2.3 seconds. Confront the flagized ordeal statistic and the similar p-value.

z-ordeal statistic = -0.749, p-appraise = 0.227

z-ordeal statistic = -0.749, p-appraise = 0.227

z-ordeal statistic = 0.749, p-appraise = 0.454

z-ordeal statistic = -0.749, p-appraise = 0.454

     

Question 10 2 pts

A consumer inquiry construction states that the medium caffeine gratified per 12-ounce bottle of a population of caffeinated flexible drinks is 37.8 milligrams. You confront a stray specimen of 48 12-ounce bottles of caffeinated flexible drinks that has a medium caffeine gratified of 34.8 milligrams. Assume the population flag derangement is 12.5 milligrams. At α=0.05, what character of ordeal is this and can you throw-by the construction’s right using the ordeal statistic?

Right is resource, fall-short to throw-by the trifling and prop right as ordeal statistic (-1.66) is referable in the throw-byion tract-of-land defined by the exact appraise (-1.64)

Right is trifling, throw-by the trifling and throw-by right as ordeal statistic (-1.66) is in the throw-byion tract-of-land defined by the exact appraise (-1.96)

Right is trifling, fall-short to throw-by the trifling and throw-by right as ordeal statistic (-1.66) is referable in the throw-byion tract-of-land defined by the exact appraise (-1.96)

Right is resource, throw-by the trifling and prop right as ordeal statistic (-1.66) is in the throw-byion tract-of-land defined by the exact appraise (-1.64)

Question 11 2 pts

A computer creator estimates that its cheapest screens accomplish ultimate near than 2.8 years. A stray specimen of 61 of these screens has a medium vivacity of 2.7 years. The population is normally reserved with a population flag derangement of 0.88 years. At α=0.02, what character of ordeal is this and can you throw-by the construction’s right using the ordeal statistic?

Right is trifling, throw-by the trifling and canreferable prop right as ordeal statistic (-0.89) is in the throw-byion tract-of-land defined by the exact appraise (-2.05)

Right is trifling, fall-short to throw-by the trifling and canreferable prop right as ordeal statistic (-0.89) is in the throw-byion tract-of-land defined by the exact appraise (-2.05)

Right is resource, throw-by the trifling and prop right as ordeal statistic (-0.89) is in the throw-byion tract-of-land defined by the exact appraise (-2.05)

Right is resource, fall-short to throw-by the trifling and prop right as ordeal statistic (-0.89) is in the throw-byion tract-of-land defined by the exact appraise (-2.05)

Question 12 2 pts 

A pharmaceutical concourse rights that the medium unimpassioned ultimates an medium of 8.4 days. They are using this as a plea to ordeal strange medicines adapted to curtail the extension of unimpassioneds. A stray specimen of 106 commonalty with unimpassioneds, confronts that on medium their unimpassioneds ultimate 8.7 days. The population is normally reserved with a flag derangement of 0.9 days. At α=0.02, what character of ordeal is this and can you prop the concourse’s right using the p-value?

Right is trifling, throw-by the trifling and canreferable prop right as the p-appraise (0.001) is near than alpha (0.02)

Right is resource, throw-by the trifling and prop right as the p-appraise (0.001) is elder than alpha (0.02)

Right is resource, fall-short to throw-by the trifling and prop right as the p-appraise (0.001) is near than alpha (0.02)

Right is trifling, fall-short to throw-by the trifling and prop right as the p-appraise (0.001) is elder than alpha (0.02)

Question 13 2 pts

A transaction receives food of copper tubing where the supplier has said that the medium extension is 26.70 inches so that they accomplish comport into the transaction’ machines. A stray specimen of 48 copper tubes confronts they entertain an medium extension of 26.77 inches. The population flag derangement is conjectured to be 0.20 inches. At α=0.05, should the transaction throw-by the supplier’s right?

Yes, gone p>α, we fall-short to throw-by the trifling and the trifling is the right

No, gone p>α, we fall-short to throw-by the trifling and the trifling is the right

No, gone p>α, we throw-by the trifling and the trifling is the right

Yes, gone p<α, we throw-by the trifling and the trifling is the right

Question 14 2 pts

The concourse’s cleaning labor states that they lay-out further than 46 minutes each date the cleaning labor is there. The concourse dates the extension of 37 strayly fineed cleaning visits and confronts the medium is 46.7 minutes. Assuming a population flag derangement of 5.2 minutes, can the concourse prop the cleaning labor’s right at α=0.10?

Yes, gone p<α, we throw-by the trifling. The right is the trifling, so the right is referable proped

No, gone p<α, we throw-by the trifling. The right is the resource, so the right is proped

No, gone p>α, we fall-short to throw-by the trifling. The right is the resource, so the right is referable proped

Yes, gone p<α, we fall-short to throw-by the trifling. The right is the trifling, so the right is referable proped

Question 15 2 pts

A customer labor phone succession rights that the hold dates anteriorly a ole is answered by a labor figurative is near than 3.3 minutes. In a stray specimen of 62 oles, the medium hold date anteriorly a figurative answers is 3.24 minutes. The population flag derangement is conjectured to be 0.29 minutes. Can the right be proped at α=0.08?

No, gone ordeal statistic is in the throw-byion tract-of-land defined by the exact appraise, fall-short to throw-by the trifling. The right is the resource, so the right is referable proped

Yes, gone ordeal statistic is in the throw-byion tract-of-land defined by the exact appraise, fall-short to throw-by the trifling. The right is the resource, so the right is proped

No, gone ordeal statistic is in the throw-byion tract-of-land defined by the exact appraise, throw-by the trifling. The right is the resource, so the right is referable proped

Yes, gone ordeal statistic is in the throw-byion tract-of-land defined by the exact appraise, throw-by the trifling. The right is the resource, so the right is proped

Question 16 2 pts

In a fancy ordeal, the right is μ≤40 while the specimen of 40 has a medium of 41 and a population flag derangement of 5.9 from a normally reserved facts formal. In this fancy ordeal, would a z ordeal statistic be used or a t ordeal statistic and why? 

t ordeal statistic would be used as the facts are normally reserved with an obscure population flag derangement

t ordeal statistic would be used as the population flag derangement is known 

z ordeal statistic would be used as the medium and specimen bigness are the corresponding 

z ordeal statistic would be used as the population flag derangement is known

Question 17 2 pts

A university rights that the medium date professors are in their offices restraint students is at smallest 6.5 hours each week. A stray specimen of view professors confronts that the medium date in their offices is 6.2 hours each week. With a population flag derangement of 0.49 hours, can the university’s right be proped at α=0.05?

Yes, gone the ordeal statistic is referable in the throw-byion tract-of-land defined by the exact appraise, the trifling is referable exceptional. The right is the trifling, so is proped

Yes, gone the ordeal statistic is in the throw-byion tract-of-land defined by the exact appraise, the trifling is referable exceptional. The right is the trifling, so is proped

No, gone the ordeal statistic is referable in the throw-byion tract-of-land defined by the exact appraise, the trifling is exceptional. The right is the trifling, so is referable proped

No, gone the ordeal statistic is in the throw-byion tract-of-land defined by the exact appraise, the trifling is exceptional. The right is the trifling, so is referable proped

Question 18 2 pts

A honor reporting performance rights that the medium honor card default in a town is elder than $3500. A stray specimen of the honor card default of 20 residents in that town has a medium honor card default of $3547 and a flag derangement of $391. At α=0.10, can the honor performance’s right be proped?

Yes, gone p-appraise of 0.30 is elder than 0.10, fall-short to throw-by the trifling. Right is trifling, so is proped

No, gone p-appraise of 0.30 is elder than 0.10, throw-by the trifling. Right is trifling, so is referable proped

No, gone p of 0.30 is elder than 0.10, fall-short to throw-by the trifling. Right is resource, so is referable proped

Yes, gone p-appraise of 0.30 is near than 0.54, throw-by the trifling. Right is resource, so is proped

Question 19 2 pts

A car concourse rights that its cars finish an medium steam mileage of at smallest 26 miles per gallon. A stray specimen of five cars from this concourse entertain an medium steam mileage of 25.2 miles per gallon and a flag derangement of 1 mile per gallon. At α=0.06, can the concourse’s right be proped?

Yes, gone the ordeal statistic of -1.79 is referable in the throw-byion tract-of-land defined by the exact appraise of -2.60, the trifling is exceptional. The right is the trifling, so is proped

No, gone the ordeal statistic of -1.79 is in the throw-byion tract-of-land defined by the exact appraise of -1.97, the trifling is exceptional. The right is the trifling, so is referable proped

Yes, gone the ordeal statistic of -1.79 is referable in the throw-byion tract-of-land defined by the exact appraise of -1.97, the trifling is referable exceptional. The right is the trifling, so is proped

No, gone the ordeal statistic of -1.79 is suspend to the exact appraise of -2.60, the trifling is referable exceptional. The right is the trifling, so is proped

Question 20 2 pts

A inquiryer wants to indicate if direct similarizes are unanalogous betwixt the apex of a glass of introduce and the ground of a glass of introduce. Many specimens of introduce are smitten. From half, the direct similarize at the apex is measured and from half, the direct similarize at the ground is measured. Would this be a operative matched couple ordeal?

No, as the measurements of apex and ground should be from the corresponding glass

Yes, as covet as they are integral from the corresponding faucet

Yes, as covet as there are an similar number of glasses in each order

No, as the direct similarizes canreferable be correspondently measured

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