A group of students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Use a 0.01 significance level to test the daimgood at estimating one minute?76 90 48 73 5336 71 75 76 54 75 76 101 99 72Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses?OA. H₂ H 60 secondsOB H₂H, u 60 seconds60 seconds#60 secondsH,OC. Ho p#60 secondsH, p=60 secondsOD H₂=60 secondsH, 60 secondsDetermine the test statistic.(Round to two decimal places as needed.)Determine the P-value.(Round to three decimal places as needed.)State the final conclusion that addresses the original claim.that, as a grouH₂ There isevidence to conclude that the mean of the population of estimates is 60 secondscorrect. It

Given76,90,48,73,53,36,71,75,76,54,75,76,101,99,72sample size(n)=15α=0.01

Answered: A group of students estimated the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A store manager hypothesizes that the average number of pages a person copies on the store’s copy machine is less than 40. A sample of 50 customers’ orders is selected. At a = 0.01, is there enough evidence to support the claim? Use the P-value hypothesis-testing method State the hypotheses and identify the claim. 1. Ho: μ D 40 (Choose the letter of the best answer) A. < B. > C. ≤ D. ≥ E. = F. ≠ 2. Ha: μ 40 (Choose the letter of the best answer) A. < B. > C. ≤ D. ≥ E. = F. ≠ 3. The claim is (Choose the letter of the best answer) A. Ho B. Ha 4. Type of Test: - tailed test (Choose the letter of the best answer) A. Right B. Left C. Two 5. Compute the test value. Test Value = (Type the exact answer) 6. Find the P-value P-value: (Type the exact answer) Make the decision. 7. P a (Choose the letter of the best answer) A. ≤ B. > 8. Decision: Ho (Choose the letter of the…
A group of students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Use a 0.10 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 67 82 42 62 40 24 57 62 68 49 64 72 91 89 66 What are the null and alternative hypotheses? H0: μ=60 second H1: μ≠60 second Determine the test statistic.
A sports enthusiast would like to determine if the average number of penalty minutes per game for teams in the National Hockey League is greater than 12 minutes. A sample of 30 games was taken, and the number of penalty minutes in each game was recorded. Select the appropriate hypotheses to be tested. Ho:μ=12Ho:μ=12Ha:μ>12Ha:μ>12 Ho:μ=12Ho:μ=12Ha:μ≠12Ha:μ≠12 Ho:¯y=12Ho:y¯=12Ha:¯y≠12Ha:y¯≠12 Ho:¯y=12Ho:y¯=12Ha:¯y>12
A group of students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Use a 0.10 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 67 82 38 66 43 22 63 64 68 47 67 73 91 90 Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? A. H0: μ=60 seconds H1: μ≠60 seconds B. H0: μ=60 seconds H1: μ<60 seconds C. H0: μ=60 seconds H1: μ>60 seconds D. H0: μ≠60 seconds H1: μ=60 seconds Determine the test statistic. (Round to two decimal places as needed.) Determine the P-value. (Round to three decimal places as needed.)
. A survey carried out by John claims that the average cost of living for households inCity 1 is more than that in City 2: City 1 City 2?̅̅1̅ = 164 ?̅̅2̅ = 159 ?1 = 12.50 ?2 = 9.25?1 = 35 ?2 = 30(a) Specify the competing hypotheses to test John's claim
In a sample of 49 men, 38 said that they had less leisure time today than they had 10 years ago. In a sample of 49 women, 30 women said that they had less leisure time today than they had 10 years ago. At α=0.01, is there a difference in the proportions?Use p1 for the proportion of men with less leisure time. State the hypotheses and identify the claim with the correct hypothesis. H0 : p1=p2 ▼not claim H1 : p1≠p2 ▼claim This hypothesis test is a ▼two-tailed test. Find the critical value(s). Round the answer(s) to two decimal places. If there is more than one critical value, separate them with commas. Critical value(s):_______________
A real estate broker recently took a sample of recently sold homes by her agents. The square footage of the 10 homes was as follows: a) 2420 1750 3200 2785 2800 1800 1950 2100 2005 2000 b) Is there evidence that the average home sold was greater than 2000 square feet? Make sure to state the null and alternative hypothesis and supporting output. Use a = .05.
The mean weight of male nurses working at a local hospital is less than 178 lbs. Express the null and alternative hypotheses in symbolic form for this claim.H0:μH0:μ =Ha:μHa:μ=
The average annual miles driven per vehicle in the United States is 11.1 thousand miles, with σ ≈ 600 miles. Suppose that a random sample of 36 vehicles owned by residents of Chicago showed that the average mileage driven last year was 10.9 thousand miles. Does this indicate that the average miles driven per vehicle in Chicago is different from (higher or lower than) the national average? Use a 0.05 level of significance. State the null and alternate hypotheses. a) H0: p = 11.1; H1: p > 11.1 b) H0: p = 11.1; H1: p < 11.1 c) H0: μ = 11.1; H1: μ > 11.1 d) H0: μ = 11.1; H1: μ ≠ 11.1 e) H0: p = 11.1; H1: p ≠ 11.1 f) H0: μ = 11.1; H1: μ < 11.1 (b) What sampling distribution will you use? What assumptions are you making? a) The standard normal, since we assume that x has a normal distribution with known σ. b) The Student's t, since we assume that x has a normal distribution with unknown σ. c) The Student's t, since we assume that x has a normal distribution with known σ.…
A store manager hypothesizes that the average number of pages a person copies on the store's copy machine is less than 40. A sample of 31 customers' orders is selected. At α=0.05, is there enough evidence to support the claim using the P-value method? Assume a=30.9 2 2 5 32 5 29 8 2 49 21 1 24 72 70 21 85 61 8 42 3 15 27 113 36 37 5 3 58 82 9 2 State the hypotheses and identify the claim. :H0: claim or not claim ▼(Choose one) :H1: claim or not claim ▼(Choose one) The hypothesis test is a ▼(Choose one) one tailed or two tailed test.
A survey carried out by John claims that the average cost of living for households in City 1 is more than that in City 2: City 1 City 2 ?1̅̅̅=164 ?2̅̅̅=159 ?1=12.50 ?2=9.25 ?1=35 ?2=30 (a) Specify the competing hypotheses to test John's claim
Use a 0.01significance level to test the reasonable claim that births occur with equal frequency on the different days of the week. How might the apparent lower frequencies on Saturday and Sunday be explained? Sun. Mon. Tues. Wed. Thurs. Fri. Sat. 39. 55. 58. 55. 65. 59. 47 x^2=? p value= ? what is the conclusion for this hypothesis test?

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