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In: Statistics and Probability

Several weeks ago an article appeared in the press comparing the Fit Bit exercise monitor to...

Several weeks ago an article appeared in the press comparing the Fit Bit exercise monitor to the Garmin monitor. In fact, earlier reports suggested that the Fit Bit monitor was inaccurate in a number of its readings. you are asked by a medical society to measure the effectiveness of the Fit Bit tracker. Your question would be “Does use of the Fit Bit tracker lead its users to lose weight?”

a. What test would you suggest conducting here? Would you use two independent samples or a dependent sample? Why?

b. What data would you collect?

c. What would your null and alternative hypotheses be?

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Several weeks ago an article appeared in the press comparing the Fit Bit exercise monitor to the Garmin monitor. In fact, earlier reports suggested that the Fit Bit monitor was inaccurate in a number of its readings. you are asked by a medical society to measure the effectiveness of the Fit Bit tracker. Your question would be “Does use of the Fit Bit tracker lead its users to lose weight?”

a. What test would you suggest conducting here? Would you use two independent samples or a dependent sample? Why?

The problem is to measure the effectiveness of the Fit Bit tracker. For this we measure the same subjects before and after Fit Bit exercise. Therefore dependent sample test to be used.

b. What data would you collect?

We collect weights for the subjects before and after Fit Bit exercise.

c. What would your null and alternative hypotheses be?

Let d be the difference between before and after Fit Bit exercise

orchestra answered 2 years ago
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