curious
After medically-supervised obese adults leave a six-month in-patient treatment program of diet and exercise to foster healthy weight loss, these patients are monitored as they transition back into their own homes. Clinical dieticians are curious if there is significant additional weight loss during the next month of home care. A random sample of 16 adults includes the following data, in pounds, which measures their weights immediately upon leaving the in-patient program (pre-test) and again after one month of home maintenance of the weight loss program (post-test).
|
Pre-Test |
315 |
280 |
350 |
300 |
420 |
380 |
225 |
360 |
|
Post-Test |
295 |
285 |
335 |
320 |
400 |
350 |
225 |
340 |
|
Pre-Test |
295 |
360 |
240 |
305 |
310 |
255 |
300 |
360 |
|
Post-Test |
280 |
345 |
245 |
320 |
300 |
250 |
305 |
360 |
At the 5% level of significance, test the claim. [COMMENTS & HINTS: Utilize the test sheet and keep it handy when answering these questions. Note that this is one collection of matched pair data, with 16 pairs. The data is stacked to fit the page. Are the samples dependent or independent? Be sure to state the hypotheses in appropriate manners. To avoid tedious manual calculations, please utilize software or spreadsheets! It is expected. State both the technical and the interpretive or contextual conclusions.]
QUESTION 14
According to the spreadsheet output, what is the value of the appropriate test statistic, rounded to three digits?
QUESTION 18
According to the spreadsheet output, what is the p-value, expressed as a percentage rounded to two decimal places without insignificant digits?
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