Test the claim about the population mean, μ, at the given level of significance using the given sample statistics. Claim: μ=50; a = 0.03; =3.64. Sample statistics: x=49.7, n = 70 Identify the null and alternative hypotheses. Choose the correct answer below. OA. Ho: H=50 H₂:μ> 50 OC. Ho: <50 H₂:μ=50 O E. Ho: μ#50 H₂:μ=50 OB. Ho: μ> 50 H₂:μ=50 O D. Ho: H=50 H₂: μ<50 OF. Ho: H=50 H₂:μ*50
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- Use a t-test to test the claim about the population mean p at the given level of significance a using the given sample statistics. Assume the population normally distributed. Claim: u= 52,900; a= 0.01 Sample statistics: x= 53,345, s= 1800, n=15 ts Click the icon to view the t-distribution table. ur What are the null and altemative hypotheses? Choose the correct answer below. O A. H, p52,900 H, p= 52,900 О В. Но н252,900 H, µ 52,900 O D. H, u=52, 900 H, µ+52,900 rai What is the value of the standardized test statistic? ns The standardized test statistic is. (Round to two decimal places as needed.)The high price of medicines is a source of major expense for those seniors in the United States who have to pay for these medicines themselves. A random sample of 1600 seniors who pay for their medicines showed that they spent an average of $4300 last year on medicines with a standard deviation of $500. Make a 90% confidence interval for the corresponding population mean. Round your answers to cents. i to $ i %24Test the claim about the population mean, µ, at the given level of significance using the given sample statistics. Claim: p= 30; a=0.06; o= 3.25. Sample statistics: x= 28.9, n= 73 %3D OF Ho H= 30 H3 p 30 Calculate the standardized test statistic. The standardized test statistic is -2.89 (Round to two decimal places as needed.) Determine the critical value(s). Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) O A. The critical values are t O B. The critical value is
- Sh33You wish to test the claim that the first population mean is not equal to the second population mean at a significance level of α=0.02 . Ho:μ1=μ2 Ha:μ1≠μ2 You obtain the following two samples of data. Sample #1 Sample #2 67.1 64.2 32.7 49.0 63.8 54.8 63.5 54.1 65.6 54.8 40.5 58.7 39.4 43.1 72.5 73.1 70.2 71.2 68.1 73.1 79.7 67.3 66.5 61.7 62.9 76.5 What is the test statistic for this sample?test statistic = Round to 3 decimal places. What is the p-value for this sample?p-value = Use Technology Round to 4 decimal places. The p-value is... less than (or equal to) α greater than α This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the first population mean is not equal to the second population mean. There is not sufficient…What is the inter-quartile range of pH values. (choose the closest answer)? ph 5.8 5.7 5.6 5.5 5.4 5.3 5.2 5.1 5.0 4.7 4.6 4.5 4.4 4.3 4.2 4.1 A. 0.5 B. 4.9 C. 0.6 D. 4.3 E. 1.6 Boxplot of ph I
- An independent measures study with n = 6 in each sample produces a sample mean difference of 8 points and Sm1-m2= 2. What is the value for the T statistic? A. 1 B. 2 C. 4 D. 4/-8Use the sample data below to test the hypotheses Comparison 1 vs 2 1 vs 3 2 vs 3 Pi Pj |Absolutel Difference ni Response Yes No Ho: P1 P2 P3 Ha Not all population proportions are the same nj 1 Critical Value 150 100 Populations where p, is the population proportion of yes responses for population i. Using a 0.05 level of significance. a. Compute the sample proportion for each population. Round your answers to two decimal places. P1 = P₂ = P3 = b. Use the multiple comparison procedure to determine which population proportions differ significantly. Use a 0.05 level of significance. Round P₁, P₁, and absolute difference to two decimal places. Use Table 3 of Appendix B. 2 150 150 Significant if | Diff| > CV 3 Select your answer - - Select your answer - Select your answer - 95 105Use technology and a t-test to test the claim about the population mean u at the given level of significance a us normally distributed. Claim: u>70; a = 0.10 Sample statistics: x= 70.9, s = 2.8, n= 25 What are the null and alternative hypotheses? Choose the correct answer below. O A. H, µ= 70 HA µZ 70 O B. H, µ2 70 HA µ 70 What is the value of the standardized test statistic? The standardized test statistic is (Round to two decimal places as needed.)
- Use the following sample to evaluate H0: μ = 65, at significance level α = 0.05. 53 75 68 53 57 12 4 10 45 94 23 73 9 41 79 92 90 46 49 71 State the correct test and your conclusion. T-test. Reject Ho. T-test. Fail to reject Ho. Z-test. Fail to reject Ho. Z-test. Reject Ho.13.Use technology to help you test the claim about the population mean, µ, at the given level of significance, a, using the given sample statistics. Assume the population i normally distributed. Claim: µs 1260; a = 0.07; 6 = 206.13. Sample statistics: x= 1282.49, n= 275 Identify the null and alternative hypotheses. Choose the correct answer below. Ο Β. Ho : με 1282.49 Ο Α. Ho μ> 1282.49 H3: us 1282.49 H3: u> 1282.49 O C. H : μ2 1282.49 O D. Hp: µs 1260 Ha:u 1260 Ο Ε. Hρ: μ2 1260 OF. Ho: µ> 1260 Ha: µ< 1260 H3: us 1260 Calculate the standardized test statistic. The standardized test statistic is. (Round to two decimal places as needed.) Determine the P-value. P= (Round to three decimal places as needed )