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SET A: 1. A club has 21 members, four of whom are executives. Five members are randomly selected to take part in a survey. a)
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H2 Hy: My = H2 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.) Make a conclusion about the null hypothesis and a final conclusion that addresses the original claim. Use a significance level of 0. 10. 7 H. horanco the D_valnie ic the cinnifinance laval There VI cliffiriont evidence that the moan time interval has channod Click to select your answer(s).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 79 92 90 80 57 99 63 86 69 87 83 83 55 81 75 101 62 Past 89 89 93 94 66 84 85 92 86 91 91 91 Find the P-value. P-value = (Round to three decimal places as needed.) Make a conclusion about the null hypothesis and a final conclusion that addresses the original claim. Use a significance level of 0.10. Ho because the P-value is the significance level. There sufficient evidence that the mean time interval has changed. Is the conclusion affected by whether the significance level is 0.10 or 0.01? O A. No, the conclusion is not affected by the significance level because Ho is not rejected regardless of whether a significance level of 0.10 or 0.01 is used. O B. No, the conclusion is not affected by the significance level because Ho is rejected regardless of whether a significance level of 0.10 or 0.01 is used. O C. Yes, the conclusion is affected by the significance level because Ho is rejected when the significance level is 0.01 but is not rejected when the significance level is 0.10. O. D. Yes, the conclusion is affected by the significance level because Ho is rejected when the significance level is 0.10 but is not rejected when the significance level is 0.01
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