Historically, the mean systolic blood pressure (SBP) has been a rather high 139 units for adults in the population. We are interested in whether a recent health campaign on diet and exercise has potentially lowered the mean. Using data from a sample of 100 adults, the one-sided P-value is 0.0424. What do you conclude? We have evidence to reject the null hypothesis, and conclude the mean SBP is significantly different to 139 at the 5% level of significance There is no evidence to reject the null hypothesis that the mean SBP is 139 at the 5% level of significance We have evidence to reject the null hypothesis, and conclude the mean SBP is significantly below 139 at the 5% level of significance
Historically, the mean systolic blood pressure (SBP) has been a rather high 139 units for adults in the population. We are interested in whether a recent health campaign on diet and exercise has potentially lowered the mean. Using data from a sample of 100 adults, the one-sided P-value is 0.0424. What do you conclude? We have evidence to reject the null hypothesis, and conclude the mean SBP is significantly different to 139 at the 5% level of significance There is no evidence to reject the null hypothesis that the mean SBP is 139 at the 5% level of significance We have evidence to reject the null hypothesis, and conclude the mean SBP is significantly below 139 at the 5% level of significance
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 4GP
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