subject
Mathematics, 17.07.2020 20:01 fazegaze89

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 a statistician who has been asked to compare the Fit Bit tracker to the Garmin tracker to see if there are significant differences between them. The variable you are interested in studying is the number of steps an individual takes during the day when wearing one of these trackers. You are being asked to construct a study for this question. Please write out your answers to the following questions. You have not undertaken the survey as of yet, so all you have to provide is a plan. How large a sample would you consider taking for each tracker? In other words you have to decide n1 and n2.What would your null and alternative hypotheses be?Are you conducting a dependent or independent test?What reading would you record for each member of your sample?Would you have any restriction on the individuals included in your sample? Would you restrict them by age, weight, athleticism? Why?Do you think you would know the standard deviations for each population (tracker)? What should be done about this?Now suppose the question changes and 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?What test would you suggest conducting here? Would you use two independent samples or a dependent sample? Why?What data would you collect?What would your null and alternative hypotheses be?

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 20.06.2019 18:04
George is folding a piece of paper to make an origami figure. each time he folds the paper, the thickness of the paper is doubled. the paper starts out flat, with a thickness of 1 millimeter. a. write a list of six ordered pairs showing the output as the thickness of the paper when the input is the number of times it is folded. explain how you came up with your ordered pairs. b. is this relation a function? explain why or why not using the ordered pairs you came up with in part a.
Answers: 1
question
Mathematics, 21.06.2019 14:00
Alawn mower manufacturer incurs a total of 34,816 in overhead costs and 388 per lawn mower in production costs. how many lawn mowers were manufactured if the average cost of productions is 660
Answers: 3
question
Mathematics, 21.06.2019 19:40
Neoli is a nurse who works each day from 8: 00 am to 4: 00 pm at the blood collection centre. she takes 45 minutes for her lunch break. on average, it takes neoli 15 minutes to collect each sample and record the patient's details. on average, how many patients can neoli see each day?
Answers: 3
question
Mathematics, 21.06.2019 20:00
Given ab and cb are tangents of p, and m =10°. what is the measure of abp?
Answers: 1
You know the right answer?
Several weeks ago an article appeared in the press comparing the Fit Bit exercise monitor to the Gar...
Questions
question
Mathematics, 18.03.2021 03:20
question
Mathematics, 18.03.2021 03:20
question
Mathematics, 18.03.2021 03:20
question
Mathematics, 18.03.2021 03:20
Questions on the website: 13722367