(a)
To find out what is the standard deviation of the sampling distribution of mean body length
(a)
Answer to Problem 14.31E
The standard deviation is
Explanation of Solution
In the question, it is given that the deer mice adult body lengths are known to be
And also from the graphing calculator for a
Thus, the standard deviation of the sampling distribution of mean body length
(b)
To find out what critical value was used to compute this
(b)
Answer to Problem 14.31E
The critical value is
Explanation of Solution
In the question, it is given that the deer mice adult body lengths are known to be normally distributed with,
And also from the graphing calculator for a
Thus, the critical value used to compute this
(c)
To show the step-by-step computations required to arrive at the interval provided by the graphing calculator.
(c)
Explanation of Solution
In the question, it is given that the deer mice adult body lengths are known to be normally distributed with,
And also from the graphing calculator for a
Thus, the step-by-step computations required to arrive at the interval provided by the graphing calculator are as follows:
Hence the result is as above.
(d)
To explain would a
(d)
Answer to Problem 14.31E
The
Explanation of Solution
In the question, it is given that the deer mice adult body lengths are known to be normally distributed with,
And also from the graphing calculator for a
Thus, the confidence interval at
As the critical value of at
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Chapter 14 Solutions
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