Question

.0T IS Ubained WheR tésting the claim that p 0.345. 20. The test statistic of z-1.94 is obtained when testing the claim that p 3/8 two-tailed p value 0.524 Final Conclusions. In Exercises 25-28, use a significance level of a0.05 and use the given information for the following: a. State a conclusion about the null hypothesis. (Reject Ho or fail to reject Ho) b. Without using technical terms or symbols, state a final conclusion that addresses the original claim. 25. Original claim: More than 58% of adults would erase all of their personal information online if they could. The hypothesis test results in a P-value of 0.3257. 26. original claim. Fewer than 90% of adults have a cell phone. The hypothesis test results in a P-value of 0.0003. 27. Original claim: The mean pulse rate (in beats per minute) of adult males is 72 bpm. The hypothesis test results in a P-value of 0.0095. 28. Original claim: The standard deviation of pulse rates of adult males is more than 11 bpm. The hypothesis test results in a P-value of 0.3045.

Answer 1

25) Since the P-value is greater than the significance level (0.3257 > 0.05), so we should not reject the null hypothesis.

So at 5% significance level there is not sufficient evidence to support the claim that more than 58% of alduts would erase all of their personal information online if they could.

26) Since the P-value is less than the significance level (0.0003 < 0.05) , so we should reject the null hypothesis.

So at 5% significance level there is sufficient evidence to support the claim that fewer than 90% of adults have cell phones.

27) Since the P-value is less than the significance level (0.0095 < 0.05) , so we should reject the null hypothesis.

So 5% significance level there is not sufficient evidence to support the claim that the mean pulse rate of adult male is 72 bpm.

28) Since the P-value is greater than the significance level (0.3045 > 0.05), so we should not reject the null hypothesis.

So at 5% significance level there is not sufficient evidence to support the claim that the standard deviation of pulse rate of adult males is more than 11 bpm.