A simple random sample of 46 men from a normally distributed population results in a standard deviation of 7.7 beats per minute. The normal range of pulse rates of adults is typically given as 60 to 100 beats per minute. If the range rule of thumb is applied to that normal range, the result is a standard deviation of 10 beats per minute. Use the sample results with a 0.05 significance level to test the claim that pulse rates of men have a standard deviation equal to 10 beats per minute. Complete parts (a) through (d) below. Question content area bottom Part 1 a. Identify the null and alternative hypotheses. Choose the correct answer below. A. H0: σ≥10 beats per minute H1: σ<10 beats per minute B. H0: σ≠10 beats per minute H1: σ=10 beats per minute C. H0: σ=10 beats per minute H1: σ<10 beats per minute D. H0: σ=10 beats per minute H1: σ≠10 beats per minute Your answer is correct. Part 2 b. Compute the test statistic. χ2=26.68126.681 (Round to three decimal places as needed.) Part 3 c. Find the P-value. P-value=0.02720.0272 (Round to four decimal places as needed.) Part 4 d. State the conclusion. ▼ Reject Do not reject H0, because the P-value is ▼ greater than less than or equal to the level of significance. There is ▼ insufficient sufficient evidence to warrant rejection of the claim that the standard deviation of men's pulse rates is equal to 10 beats per minute.
A simple random sample of 46 men from a normally distributed population results in a standard deviation of 7.7 beats per minute. The normal range of pulse rates of adults is typically given as 60 to 100 beats per minute. If the range rule of thumb is applied to that normal range, the result is a standard deviation of 10 beats per minute. Use the sample results with a 0.05 significance level to test the claim that pulse rates of men have a standard deviation equal to 10 beats per minute. Complete parts (a) through (d) below. Question content area bottom Part 1 a. Identify the null and alternative hypotheses. Choose the correct answer below. A. H0: σ≥10 beats per minute H1: σ<10 beats per minute B. H0: σ≠10 beats per minute H1: σ=10 beats per minute C. H0: σ=10 beats per minute H1: σ<10 beats per minute D. H0: σ=10 beats per minute H1: σ≠10 beats per minute Your answer is correct. Part 2 b. Compute the test statistic. χ2=26.68126.681 (Round to three decimal places as needed.) Part 3 c. Find the P-value. P-value=0.02720.0272 (Round to four decimal places as needed.) Part 4 d. State the conclusion. ▼ Reject Do not reject H0, because the P-value is ▼ greater than less than or equal to the level of significance. There is ▼ insufficient sufficient evidence to warrant rejection of the claim that the standard deviation of men's pulse rates is equal to 10 beats per minute.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
A simple random sample of
range of pulse rates of adults is typically given as 60 to 100 beats per minute. If the range rule of thumb is applied to that normal range, the result is a standard deviation of
46
men from a normally distributed population results in a standard deviation of
7.7
beats per minute. The normal 10
beats per minute. Use the sample results with a
0.05
significance level to test the claim that pulse rates of men have a standard deviation equal to
10
beats per minute. Complete parts (a) through (d) below.Question content area bottom
Part 1
a. Identify the null and alternative hypotheses. Choose the correct answer below.
H0: σ≥10
beats per minuteH1: σ<10
beats per minuteH0: σ≠10
beats per minuteH1: σ=10
beats per minuteH0: σ=10
beats per minuteH1: σ<10
beats per minuteH0: σ=10
beats per minuteH1: σ≠10
beats per minutePart 2
b. Compute the test statistic.
χ2=26.68126.681
(Round to three decimal places as needed.)
Part 3
c. Find the P-value.
P-value=0.02720.0272
(Round to four decimal places as needed.)
Part 4
d. State the conclusion.
▼
Reject
Do not reject
H0,
because the P-value is
▼
greater than
less than or equal to
▼
insufficient
sufficient
10
beats per minute. Expert Solution
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