Perform the hypothesis tests as required. Use the four-step method. Topic: HYPOTHESIS TESTING ONE SAMPLE INFERENCE 1. The medical Rehabilitation Education Foundation reports that the average cost of rehabilitation for stroke victims is $24,672. To see if the average cost of rehab is different at a particular hospital, a researcher selects a random sample of 35 stroke victims at the hospital and finds the average cost of their rehab is $25,250. The standard deviation of the population is $3251. Use the critical value method at α=0.05. 2. The following cholesterol levels were found in a random sample of 10 women aged 20 to 24 engaged in a low-fat diet program: 176 180 175 186 182 188 180 186 168 184 At 5% level of significance, is there evidence to suggest that the population of women aged 20 to 24 engaged in a low-fat diet program is less than 184? Use the p-value method (include a screenshot of the Excel t-test results).
Perform the hypothesis tests as required. Use the four-step method.
Topic: HYPOTHESIS TESTING ONE SAMPLE INFERENCE
1. The medical Rehabilitation Education Foundation reports that the average cost of rehabilitation for stroke victims is $24,672. To see if the average cost of rehab is different at a particular hospital, a researcher selects a random sample of 35 stroke victims at the hospital and finds the average cost of their rehab is $25,250. The standard deviation of the population is $3251. Use the critical value method at α=0.05.
2. The following cholesterol levels were found in a random sample of 10 women aged 20 to 24 engaged in a low-fat diet program:
176 180 175 186 182 188 180 186 168 184
At 5% level of significance, is there evidence to suggest that the population of women aged 20 to 24 engaged in a low-fat diet program is less than 184? Use the p-value method (include a screenshot of the Excel t-test results).
3. We wish to check that normal body temperature may be less than 98.6 degrees. In a random sample of 18 individuals, the sample mean was found to be 98.217 and the standard deviation was 0.684. Assume the population is
Step by step
Solved in 5 steps
