A new weight-loss program claims that participants will lose an average of more

Question

A new weight-loss program claims that participants will lose an average of more than 10 pounds after completing it. The accompanying data table shows the weights of eight individual's before and after the program. Complete parts (a) through (e) below. Howl Click the on to view the data table How Interpret the resuit 1. De Since the p-value is greater than the significance level, do not reject the null hypothesis. There is insufficient evidence that the mean score is lower ather 2. De the weight-loss program 3. d. Construct an 80% condence interval to estimate the average weight loss or individuals inthe program. Interpret the results. 6. U Round to two decimal places as needed.) How Enter your answer in the edit fields and then click Check Answer. Clear All Check Answer Se What is the P value in statistics? Is P value of 0.05 Significant? 6 I P11 5 6 8

Explanation / Answer

Here, dbar = 10.8 , s(dbar) = 9.1990

t value at 80% = 1.4149

CI = dbar +/- t * (s(dbar)/sqrt(n))
= 10.8 +/- 1.4149 * (9.1990/sqrt(8))
= (6.1982 , 15.4018 )

UCLdbar = 15.40
LCLdbar = 6.20

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