the level of significance is 0.05, and the P-value is 0.043, the decision would be to... 1. reject the null hypothesis. 2. make no decision because the difference between the level of significance and the p-value is not statistically significant. 3. use a nonparametric test because normality of the data cannot be established when the results are close. 4. fail to reject the null

the level of significance is 0.05, and the P-value is 0.043, the decision would be to... 1. reject the null hypothesis. 2. make no decision because the difference between the level of significance and the p-value is not statistically significant. 3. use a nonparametric test because normality of the data cannot be established when the results are close. 4. fail to reject the null

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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A study was done using a treatment group and a placebo group. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. a. Test the claim that the two samples are from populations with the same mean. What are the null and alternative hypotheses? A. Ho: H#H2 OB. Ho: H1 H₂ H₁: H₁ H₂ H₁: H₁ H₂ D. Ho: ₁ = ₂ C. Ho: ₁ = ₂ H₁: µ₁ ‡µ₂ H₁: H₁ H₂ The test statistic, t, is . (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) ESIX n H₂ Treatment Placebo H₁ 28 2.36 36 2.61 0.96 S 0.66
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Use a 0.05 significance level to test the claim that there is a difference between the actual and reported heights, in inches, for 12-16 year old boys. The data is listed in the table below. Click the icon to view the data table of the reported heights. Let μ₁ denote the median of the first variable and μ₂ denote the median of the second variable. What are the null and alternative hypotheses? OA. Ho: H₁ H₂ H₁: H₁ H₂ C. Ho: H₁ H2 H₁: H₁ H₂ Find the test statistic. Test statistic = -2.26 (Round to two decimal places as needed.) CH More Info OB. Ho: H₁ H₂ H₁: P1 P₂ OD. Ho: ₁2H₂ H₁ H₁ H₂ Actual 61.9 67.9 71.2 61.4 62.3 68.8 65.9 70.8 61.9 66.7 Reported 62 68 71 62 61 69 66 70 62 67 Actual 59.6 71.9 64.5 64.4 71.9 69.1 68.8 68.1 71.7 62.5 Reported 60 72 64 64 72 69 68 68 72 62 Actual 65.2 59.9 64.8 65.5 67 Reported 65 60 65 66 67 Print 68.7 65.2 71.4 69.2 60.9 69 65 72 69 61 Done - X
Suppose the level of significance α was 0.10 and the p-value is 0.084 The conclusion would be to... Fail to reject the null hypothesis Reject the null hypothesis Reject the alternative hypothesis Accept the alternative hypothesis Accept the null hypothesis
Casey is a statistics student who is conducting a one-sample z‑test for a population proportion p using a significance level of a=. Her null (H0) and alternative (Ha) hypotheses are H0:p=0.094Ha:p≠0.094 The standardized test statistic is z = 1.40. What is the P-value of the test? P-value =
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