3. A personal trainer claims that their exercise programme will lead to a reduction in weight. To test this claim, the weight in kg of 10 participants was measured before and after the programme. Let X, be the weight before and let Y, be the weight after the programme. Let D, be the difference: D, = Xi- Y. The following information is available: -31.71 and D; = 120.358. Page 4 of 15 Answer the following three questions. (a) Carry out an appropriate test on the Personal Trainer's claim. Explain why having the value D, in advance of the test should influence the test. (b) Redo the test if the the personal trainer now claims the exercise programme will lead to a reduction of at least 5 kg. (c) State the best method to explain what the data is showing about the exercise programme.

Q: There are eight performers who will present their comedy acts this weekend at a comedy club. How…

A: Arranging n items is found by n! ways...

Q: The data were collected from a statistics class. The column heads give the variable, and each of the…

A: The objective is to find another categorical variable that might have been recorded for the…

Q: The University of Montana ski team has twelve entrants in a men's downhill ski event. The coach…

A: There are 12 entrants in a ski event and from these entrants first, second and third places to go to…

Q: Professor Tough's final examination has 17 true-false questions followed by 3 multiple-choice…

A: To solve this problem  (1) we find the number of ways to solve the true false questions . (2) we…

Q: During second period, mia completed a grammar worksheets. Of the 60 question, mia got 80% right. How…

A: Total number of questions solved by Mia are 60.

Q: A group of 12 people are going to run a race. The top 6 finishers are going to advance to the next…

A:

Q: Ms. Ling has 16 boys and 14 girls in her third-grade class. How many ways can she select 2 boys or 2…

A: Ms. Ling has 16 boys and 14 girls in her third-grade class. We want to find how many ways can she…

Q: An initial survey was given out to determine shopping preferences and age group. On the survey,…

A: Given that there are 4 shopping preferences and 6 age groups.  Using the fundamental counting…

Q: Professor Tough's final examination has 18 true-false questions followed by 3 multiple-choice…

A:

Q: The math club needs to select a president, Vice President, treasurer and secretary from 21 members.…

A: There are 21 members and we have to select President, Vice President, Treasurer and Secretary. We…

Q: A second study will be performed, gathering more detailed information including height and age, on a…

A: The power of the test is defined as the probability of correctly rejecting the null hypothesis.…

Q: From the ten books that you’ve recently bought but not read, you plan to take four with you on…

A: From the ten books that you’ve recently bought but not read, you plan to take four with you on…

Q: You have 8 DVDs to place on a shelf, but you only have room for 6 of them. How many different ways…

A: Given,no.of DVDs=8no.of rooms=6

Q: Mr. H has a collection of 500 vessels. In how many ways can he name his favorite and second favorite…

A:

Q: did you come up with 30 as the first number of the classes and 54 as the last number of the classes?

A: Concept: Creating interval for data points is a process is which we create interval that are easy to…

Q: The California license plate has one number followed by three letters followed by three numbers. How…

A: GivenCalifornia license plate has one number followed by three letters followedby three numbers…

Q: You have a lovely night at your favorite restaurant and ordered the following Items: 1 Chips and…

A: Given

Q: or this problem, assume that 13 exhibits entered the science fair, and that we want to assign 5…

A: Given Data :  Number of exhibits are 13 in a science fair                        Number of Prizes…

Q: For this problem, assume that 13 exhibits entered the science fair, and that we want to assign 3…

A: The number of exhibits entered the science fair is 13. The number of prizes that are to be assigned…

Q: Determine the number of arrangements of all the letters in the word SUCCESS.

A: We have to determine the number of arrangements of all the letters in the word SUCCESS. Here, total…