Listed below are time intervals (min) between eruptions of a geyser. Assume that the "recent" times are within the past few years, the "past" times are from around 20 years ago, and that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Does it appear that the mean time interval has changed? Is the conclusion affected by whether the significance level is 0.10 or 0.01? Recent 77 90 90 78 56 99 61 87 71 88 83 84 56 81 75 103 60 - Past 88 89 93 94 66 84 84 92 88 91 89 91 Let u, be the recent times and let , be the past times. What are the null and alternative hypotheses? OA. H OB. H H =2 OD. H 2 OC. H H,: H 2 Calculate the test statistic. t= (Round to two decimal places as needed.) Find the P-value P-value = (Round to three decimal places as needed.)

Listed below are time intervals (min) between eruptions of a geyser. Assume that the "recent" times are within the past few years, the "past" times are from around 20 years ago, and that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Does it appear that the mean time interval has changed? Is the conclusion affected by whether the significance level is 0.10 or 0.01? Recent 77 90 90 78 56 99 61 87 71 88 83 84 56 81 75 103 60 - Past 88 89 93 94 66 84 84 92 88 91 89 91 Let u, be the recent times and let , be the past times. What are the null and alternative hypotheses? OA. H OB. H H =2 OD. H 2 OC. H H,: H 2 Calculate the test statistic. t= (Round to two decimal places as needed.) Find the P-value P-value = (Round to three decimal places as needed.)

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Description: Listed below are time intervals (min) between eruptions of a geyser. Assume that the "recent" times are within the past few years, the "past" times are from around 20 years ago, and that the two samples are independent simple random samples selected

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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Listed below are time intervals (min) between eruptions of a geyser. Assume that the "recent" times are within the past few years, the "past" times are from around 20 years ago, and that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Does it appear that the mean time interval has changed? Is the conclusion affected by whether the significance level is 0.10 or 0.01? a. Calculate the test statistic. t= (Round to two decimal places as needed.) b. Find the P-value. P-value= (Round to three decimal places as needed.)
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Listed below are time intervals (min) between eruptions of a geyser. Assume that the "recent" times are within the past few years, the "past" times are from around 20 years ago, and that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Does it appear that the mean time interval has changed? Is the conclusion affected by whether the significance level is 0.10 or 0.01? Recent 77 91 88 80 58 100 63 87 69 88 82 82 55 82 74 103 62 Past 90 88 93 94 64 84 84 92 86 91 89 91
Listed below are time intervals (min) between eruptions of a geyser. Assume that the "recent" times are within the past few years, the "past" times are from around 20 years ago, and that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Does it appear that the mean time interval has changed? Is the conclusion affected by whether the significance level is 0.10 or 0.01? Recent 78 91 90 78 56 101 61 86 69 87 82 82 55 82 74 102 61 O Past 89 87 93 94 66 86 85 92 86 91 89 91 Let u, be the recent times and let u, be the past times. What are the null and alternative hypotheses? OA. Ho: H1 H2 Calculate the test statistic. (Round to two decimal places as needed.) Find the P-value. P-value: (Round to three decimal places as needed.) %3D Make a conclusion about the null hypothesis and a final conclusion that addresses the original claim. Use a significance level of 0.10. the…
Listed below are time intervals (min) between eruptions of a geyser. Assume that the "recent" times are within the past few years, the "past" times are from around 20 years ago, and that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Does it appear that the mean time interval has changed? Is the conclusion affected by whether the significance level is 0.10 or 0.01? Recent 77 92 88 80 58 101 61 88 71 88 82 82 56 81 73 102 62 Past 90 88 93 94 64 84
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Listed below are time intervals (min) between eruptions of a geyser. Assume that the "recent" times are within the past few years, the "past" times are from around 20 years ago, and that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal, Does it appear that the mean time interval has changed? Is the conclusion affected by whether the significance level is 0.10 or 0.01? Recent 78 91 88 78 56 99 62 86 70 88 83 82 55 80 74 102 61 D Past 88 87 93 94 63 86 84 92 87 91 90 91 Let u, be the recent times and let u, be the past times. What are the null and alternative hypotheses? O A. Ho H, H2 O B. Ho H,
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