You are testing the claim that the mean GPA of Golden West students is less than...

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You are testing the claim that the mean GPA of Golden West students is less than the mean GPA of Coastline students. You sample 20 Golden West students, and the sample mean GPA is 2.56 with the population standard deviation of 0.93 You sample 25 Coastline students, and the sample mean GPA is 2.74 with the population standard deviation of 0.54 Calculate the test statistic, rounded to 2 decimal places. You are testing the claim that the proportion of men who own cats is larger than the proportion of women who own cats. You sample 190 men, and 50% own cats. You sample 110 women, and 45% own cats. Find the proportion of the pooled samples, (pc), as a decimal, rounded to two decimal places. You wish to test the following claim (Ha) at a significance level of a = 0.05. Ho: P1 = P2 Ha: P1 P2 You obtain 684 successes in a sample of size n = 788 from the first population. You obtain 515 successes in a sample of size n2 = 557 from the second population. For this test, you should NOT use the continuity correction, and you should use the normal distribution as an approximation for the binomial distribution. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a Ogreater than a This test statistic leads to a decision to... Oreject the null accept the null Ofail 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 proportion is less than the second population proportion. There is not sufficient evidence to warrant rejection of the claim that the first population proportion is less than the second population proportion. The sample data support the claim that the first population proportion is less than the second population proportion. There is not sufficient sample evidence to support the claim that the first population proportion is less than the second population proportion. In each of the following scenarios, determine if the data are paired. (a) We would like to know if Intel's stock and Southwest Airlines' stock have similar rates of return. To find out, we take a random sample of 50 days, and record Intel's and Southwest's stock on those same days. not paired paired (b) We randomly sample 50 items from Target stores and note the price for each. Then we visit Walmart and collect the price for each of those same 50 items. not paired paired (c) A school board would like to determine whether there is a difference in average SAT scores for students at one high school versus another high school in the district. To check, they take a simple random sample of 100 students from each high school. Opaired not paired You are performing a right-tailed matched-pairs test with 35 pairs of data If a = .10, find the critical value, to two decimal places. You are testing the claim that the mean GPA of Golden West students is less than the mean GPA of Coastline students. You sample 20 Golden West students, and the sample mean GPA is 2.56 with the population standard deviation of 0.93 You sample 25 Coastline students, and the sample mean GPA is 2.74 with the population standard deviation of 0.54 Calculate the test statistic, rounded to 2 decimal places. You are testing the claim that the proportion of men who own cats is larger than the proportion of women who own cats. You sample 190 men, and 50% own cats. You sample 110 women, and 45% own cats. Find the proportion of the pooled samples, (pc), as a decimal, rounded to two decimal places. You wish to test the following claim (Ha) at a significance level of a = 0.05. Ho: P1 = P2 Ha: P1 P2 You obtain 684 successes in a sample of size n = 788 from the first population. You obtain 515 successes in a sample of size n2 = 557 from the second population. For this test, you should NOT use the continuity correction, and you should use the normal distribution as an approximation for the binomial distribution. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a Ogreater than a This test statistic leads to a decision to... Oreject the null accept the null Ofail 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 proportion is less than the second population proportion. There is not sufficient evidence to warrant rejection of the claim that the first population proportion is less than the second population proportion. The sample data support the claim that the first population proportion is less than the second population proportion. There is not sufficient sample evidence to support the claim that the first population proportion is less than the second population proportion. In each of the following scenarios, determine if the data are paired. (a) We would like to know if Intel's stock and Southwest Airlines' stock have similar rates of return. To find out, we take a random sample of 50 days, and record Intel's and Southwest's stock on those same days. not paired paired (b) We randomly sample 50 items from Target stores and note the price for each. Then we visit Walmart and collect the price for each of those same 50 items. not paired paired (c) A school board would like to determine whether there is a difference in average SAT scores for students at one high school versus another high school in the district. To check, they take a simple random sample of 100 students from each high school. Opaired not paired You are performing a right-tailed matched-pairs test with 35 pairs of data If a = .10, find the critical value, to two decimal places.