Consider the following hypothesis statement using a = 0.05 and data from two independent samples: H0:...

Consider the following hypothesis statement using a = 0.05 and data from two independent samples: H0: U1 - U2 = 0 H1: U1 - U2 = 0 X1 237 X2 = 218 1 = 54 2 = 63 n1 =42 n2 = 35 a. Calculate the appropriate test statistic and interpret the result. b. Calculate the p-value and interpret the result. c. Verify your results using PHSat..

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orchestra answered 1 year ago

Consider the following hypothesis statement using a = 0.05 and data from two independent samples. Assume...

Consider the following hypothesis statement using a = 0.05 and data from two independent samples. Assume the population variances are not equal and the populations are normally distributed. H0: u1 - u2 = 0 H1: u1 - u2 = 0 x1: = 114.7 x2 = 122.0 s1 = 24.6 s2 = 14.3 n1 = 14 n2 20 a. Calculate the appropriate test statistic and interpret the result. b. Approximate the p-value using Table 5 in Appendix A and interpret the...

Consider the following hypothesis statement using alphaequals0.05 and data from two independent samples. Assume the population...

Consider the following hypothesis statement using alphaequals0.05 and data from two independent samples. Assume the population variances are not equal and the populations are normally distributed. Complete parts a and b. Upper H 0 : mu 1 minus mu 2 equals 0 x overbar 1 equals 115.1 x overbar 2 equals 122.0 Upper H 1 : mu 1 minus mu 2 not equals 0 s 1 equals 25.6 s 2 equals 14.5 n 1 equals 15 n 2 equals 21...

Consider the following hypothesis statement using alphaαequals=0.050.05 and data from two independent samples. Assume the population...

Consider the following hypothesis statement using alphaαequals=0.050.05 and data from two independent samples. Assume the population variances are not equal and the populations are normally distributed. Complete parts a and b. Upper H 0 : mu 1 minus mu 2 equals 0H0: μ1−μ2=0 x overbar 1 equals 115.4x1=115.4 x overbar 2 equals 122.0x2=122.0 Upper H 1 : mu 1 minus mu 2 not equals 0H1: μ1−μ2≠0 s 1 equals 25.5s1=25.5 s 2 equals 14.7s2=14.7 n 1 equals 14n1=14 n 2...

Consider the following data for two independent random samples taken from two normal populations with equal...

Consider the following data for two independent random samples taken from two normal populations with equal variances. Find the 95% confidence interval for µ1 - µ2. Sample 1: 11,5,12,9,6,8 Sample 2: 12,9,16,13,11,11 What are the left adn right endpoints?

Consider the following data for two independent (not matched) random samples taken from two normal populations....

Consider the following data for two independent (not matched) random samples taken from two normal populations. Sample 1 10 7 13 7 9 8 Sample 2 8 7 8 4 6 9 In the next question you will be asked to develop a confidence interval for the difference between the two population means.

CH10. 1. Consider the following hypothesis test. The following results are for two independent samples taken...

CH10. 1. Consider the following hypothesis test. The following results are for two independent samples taken from the two populations. Sample 1 Sample 2 n 1 = 80 n 2 = 70 x 1 = 104 x 2 = 106 σ 1 = 8.4 σ 2 = 7.6 What is the value of the test statistic? If required enter negative values as negative numbers (to 2 decimals). What is the p-value (to 4 decimals)? Use z-table. 2. The USA Today...

Consider the hypothesis statement shown below using alphaαequals=0.050.05 and the data to the right from two...

Consider the hypothesis statement shown below using alphaαequals=0.050.05 and the data to the right from two independent samples. Upper H 0 : mu 1 minus mu 2 equals 0H0: μ1−μ2=0 Upper H 1 : mu 1 minus mu 2 not equals 0H1: μ1−μ2≠0 a) Calculate the appropriate test statistic and interpret the result. b) Calculate the p-value and interpret the result. x overbarx1 equals= 231231 x overbarx2 equals= 209209 sigmaσ1 equals= 6565 sigmaσ2 equals= 5353 n1 equals= 4444 n2 equals=...

17-14: The following sample data have been collected from independent samples from independent samples from two...

17-14: The following sample data have been collected from independent samples from independent samples from two populations. The claim is that the first population median will be larger than the median of the second population. Sample 1 Sample 2 4.4 2.6 3.7 4.2 2.7 2.4 3.5 5.2 1.0 2.0 4.0 4.4 3.5 2.8 4.9 4.3 2.8 3.1 State the appropriate null and alternative hypotheses. Using the Mann-Whitney U-test, based on the sample data, what...

Consider the hypothesis statement to the right using alphaequals0.01 and the data to the right from...

Consider the hypothesis statement to the right using alphaequals0.01 and the data to the right from two independent samples. a) Calculate the appropriate test statistic and interpret the result. b) Calculate the p-value and interpret the result. Click here to view page 1 of the standard normal table. LOADING... Click here to view page 2 of the standard normal table. LOADING... H0: mu1minusmu2less than or equals0 H1: mu1minusmu2greater than0 x overbar1 equals 88 x overbar2 equals 82 sigma1 equals 24...

Consider the following data for two independent random samples taken from two normal populations. Sample 1...

Consider the following data for two independent random samples taken from two normal populations. Sample 1 11 6 13 7 9 8 Sample 2 8 7 9 4 5 9 (a) Compute the two sample means. Sample 1Sample 2 (b) Compute the two sample standard deviations. (Round your answers to two decimal places.) Sample 1Sample 2 (c) What is the point estimate of the difference between the two population means? (Use Sample 1 − Sample 2.) (d) What is the...

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