A simple random sample of pulse rates of 50 women from a normally distributed population results in a standard deviation of 13.3 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 women have a standard deviation equal to 10 beats per minute. Complete parts (a) through (d) below. a. Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: o 10 beats per minute O B. Ho: o = 10 beats per minute H1:o< 10 beats per minute H,: o+ 10 beats per minute OC. Ho: o 10 beats per minute O D. Ho: o= 10 beats per minute H,:o< 10 beats per minute H1: 0 = 10 beats per minute b. Compute the test statistic. (Round to three decimal places as needed.) c. Find the P-value of the test statistic. The P-value of the test statistic is. (Round to three decimal places as needed.) d. State the conclusion. Ho. There V sufficient evidence to warrant rejection of the claim that pulse rates of women have a standard deviation equal to 10 beats per minute.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A simple random sample of pulse rates of 50 women from a normally distributed population results in a standard deviation of 13.3 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 women have a standard deviation equal to 10 beats per minute. Complete parts (a) through (d) below.
a. Identify the null and alternative hypotheses. Choose the correct answer below,
O A. Ho: o 10 beats per minute
O B. Ho: o = 10 beats per minute
H,: o< 10 beats per minute.
H,:o* 10 beats per minute
O C. Ho: o 10 beats per minute
O D. Ho: o = 10 beats per minute
H1: 0 = 10 beats per minute
H,:o<10 beats per minute
b. Compute the test statistic.
(Round to three decimal places as needed.)
c. Find the P-value of the test statistic.
The P-value of the test statistic is.
(Round to three decimal places as needed.)
d. State the conclusion.
V Ho. There
V sufficient evidence to warrant rejection of the claim that pulse rates of women have
standard deviation equal to 10 beats per minute.
Transcribed Image Text:A simple random sample of pulse rates of 50 women from a normally distributed population results in a standard deviation of 13.3 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 women have a standard deviation equal to 10 beats per minute. Complete parts (a) through (d) below. a. Identify the null and alternative hypotheses. Choose the correct answer below, O A. Ho: o 10 beats per minute O B. Ho: o = 10 beats per minute H,: o< 10 beats per minute. H,:o* 10 beats per minute O C. Ho: o 10 beats per minute O D. Ho: o = 10 beats per minute H1: 0 = 10 beats per minute H,:o<10 beats per minute b. Compute the test statistic. (Round to three decimal places as needed.) c. Find the P-value of the test statistic. The P-value of the test statistic is. (Round to three decimal places as needed.) d. State the conclusion. V Ho. There V sufficient evidence to warrant rejection of the claim that pulse rates of women have standard deviation equal to 10 beats per minute.
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