A nutritionist claims that a particular exercise program will help participants lose weight after one month. The table shows the weights of 12 adults before participating in the exercise and one month after participating in the exercise program. At α = 10% , can you conclude that the exercise program helps participants lose weight? Assume normal distribution of data in the population. Participant 1 2 3 4 5 6 7 8 9 10 11 12 Weight before 157 158 120 212 230 165 207 251 196 140 137 172 Weight after 150 181 121 206 215 169 210 232 188 138 145 172 write the claim and state identify Ho and Ha b) Find the critical values and identify the rejection regions c) Calculate d and sd d) Find the standardized test statistic t e) Decide whether to reject or fail to reject the null hypothesis f) Interpret the decision in the context of the original claim
Added by Stephen G.
Step 1
- Null Hypothesis (Ho): Mean difference in weight before and after exercise program = 0 - Alternative Hypothesis (Ha): Mean difference in weight before and after exercise program > 0 ** Show more…
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