Question Help In a statistics class, students took their pulses before and after

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Question Help In a statistics class, students took their pulses before and afterbeing frightened. The frightening event was having the teacher scream and run from one side of the room to the other. The pulse rates (beats per minute) of the women before and after the scream were obtained separately and are shown in the table. Treat this as of college women's pulse rates is higher after a fright, using a significance level of 0.05. Data Table Click the icon to view the table of pulse rates before and after the scream. Determine the hypotheses for this test. Choose the correct answer below O A. Ho: HbetoreHafter O C. Ho: Hbetore Hater OE. Ho'Poefore#Harter 82 79 70 80 74 73 Ha: Hbetore Hater 70 72 82 64 69 74 97 81 69 74 79 102 84 72 Assume that the distribution of the differences is sufficiently Normal. Find the test statistic for this test. t(Round to two decimal places as needed.) Find the p-value for this test. p-value (Round to three decimal places as needed.) What is the conclusion for this test? PrintDone THO The sample mean before he scream was beats per minute and the sample mean a er was beats per minute. College women's pulse rates significantly higher after a right. (Round to one decimal place as needed.) Click to select your answer(s).

Explanation / Answer

The statistical software output for this problem is:

Paired T hypothesis test:
D = 1 - 2 : Mean of the difference between Pulse Before and Pulse After
H0 : D = 0
HA : D < 0
Hypothesis test results:

Hence,

Hypotheses: Option C is correct.

t = -5.77

p - value = 0.000

Reject; 74.1; 79.2; is

Difference Mean Std. Err. DF T-Stat P-value Pulse Before - Pulse After -5.0769231 0.88042486 12 -5.7664468 <0.0001

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