A diet center claims that it has the most effective weight loss program in the region. Its advertisements say, âPartic...
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A diet center claims that it has the most effective weight loss program in the region. Its advertisements say, âParticipants in our program lose more than 2 pounds within a month.â Six clients of this program are weighed on the first day of the diet and then one month later. Let the difference be defined as Weight on First Day of Diet minus Weight One Month Later. Use Table 2. |
Client | Weight on First Day of Diet | Weight One Month Later |
1 | 170 | 174 |
2 | 199 | 201 |
3 | 168 | 163 |
4 | 197 | 177 |
5 | 153 | 151 |
6 | 127 | 134 |
Click here for the Excel Data File |
Let the difference be defined as Before â After. |
a. | Specify the null and alternative hypotheses that test the diet centerâs claim. |
H0: ?D ? 2; HA: ?D > 2 |
b. | Assuming that weight loss is normally distributed, calculate the value of the test statistic. (Round all intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) |
Test statistic |
c. | Approximate the p-value. |