PRACTICE OF STATS - 1 TERM ACCESS CODE
4th Edition
ISBN: 9781319403348
Author: BALDI
Publisher: Macmillan Higher Education
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Question
Chapter 16, Problem 16.21AT
(a)
To determine
To find out what is the
(b)
To determine
To find out what is the probability that at least one girl in a random sample of ten girls would exercise every day of the week and also the probability that at least one boy in a random sample of ten girls would exercise every day of the week.
(c)
To determine
To find out how many girls would we expect on average to exercise every day of the week in a random sample of ten girls and how many boys would we expect on average to exercise every day of the week in a random sample of ten boys.
(d)
To determine
To explain briefly why this does not imply a mistake.
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Students have asked these similar questions
Client
1
Weight before
diet (pounds)
Weight after
diet (pounds)
128
120
2
131
123
3
140
141
4
178
170
5
121
118
6
136
136
7
118
121
8
136
127
Client
1
Weight before
diet (pounds)
Weight after
diet (pounds)
128
120
2
131
123
3
140
141
4
178
170
5
121
118
6
136
136
7
118
121
8
136
127
a) Determine the mean change in patient weight from before to after the
diet (after – before). What is the 95% confidence interval of this mean
difference?
In order to find probability, you can use this formula in Microsoft Excel:
The best way to understand and solve these problems is by first drawing a bell curve and marking key points such as x, the mean, and the areas of interest. Once marked on the bell curve, figure out what calculations are needed to find the area of interest.
=NORM.DIST(x, Mean, Standard Dev., TRUE).
When the question mentions “greater than” you may have to subtract your answer from 1.
When the question mentions “between (two values)”, you need to do separate calculation for both values and then subtract their results to get the answer.
1.
Compute the probability of a value between 44.0 and 55.0.
(The question requires finding probability value between 44 and 55. Solve it in 3 steps.
In the first step, use the above formula and x = 44, calculate probability value.
In the second step repeat the first step with the only difference that x=55.
In the third step, subtract the answer of the first part from the…
Chapter 16 Solutions
PRACTICE OF STATS - 1 TERM ACCESS CODE
Ch. 16 - Prob. 16.1CRECh. 16 - Prob. 16.2CRECh. 16 - Prob. 16.3CRECh. 16 - Prob. 16.4CRECh. 16 - Prob. 16.5CRECh. 16 - Prob. 16.6CRECh. 16 - Prob. 16.7CRECh. 16 - Prob. 16.8CRECh. 16 - Prob. 16.9CRECh. 16 - Prob. 16.10CRE
Ch. 16 - Prob. 16.11CRECh. 16 - Prob. 16.12CRECh. 16 - Prob. 16.13CRECh. 16 - Prob. 16.14CRECh. 16 - Prob. 16.15CRECh. 16 - Prob. 16.16CRECh. 16 - Prob. 16.17CRECh. 16 - Prob. 16.18ATCh. 16 - Prob. 16.19ATCh. 16 - Prob. 16.20ATCh. 16 - Prob. 16.21ATCh. 16 - Prob. 16.22ATCh. 16 - Prob. 16.23ATCh. 16 - Prob. 16.24ATCh. 16 - Prob. 16.25ATCh. 16 - Prob. 16.26ATCh. 16 - Prob. 16.29ATCh. 16 - Prob. 16.30AT
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