30-minute exercise every day for 6 months. The weight was recorded for each individual before and after the exercise regimen. Does the data below suggest that the regular exercise helps weight loss? Assume Mimi wants to use a 0.05 significance level to test the claim
( a) Identify the null hypothesis and the alternative hypothesis.
( b) Determine the test statistic. Show all work; writing the correct test statistic, without supporting work, will receive no credit.
( c) Determine the p-value. Show all work; writing the correct critical value, without supporting work, will receive no credit.
( d) Is there sufficient evidence to support the claim that regular exercise helps weight loss? Justify your conclusion
17. In a pulse rate research, a simple random sample of 100 men results in a mean of 80 beats per minute, and a standard deviation of 11 beats per minute. Based on the sample results, the researcher concludes that the pulse rates of men have a standard deviation greater than 10 beats per minutes. Use a 0.05 significance level to test the researcher’ s claim.
( a) Identify the null hypothesis and alternative hypothesis.
( b) Determine the test statistic. Show all work; writing the correct test statistic, without supporting work, will receive no credit.
( c) Determine the P-value for this test. Show all work; writing the correct P-value, without supporting work, will receive no credit.
( d) Is there sufficient evidence to support the researcher’ s claim? Explain