Question

Heart rates are determined before and 30 minutes after a Kettleball workout. It can be assumed that heart ratcs (bpm) are normally distributed. Use the data provided below to test to determine if avcrage heart rates prior to the workout are significantly lower than 30 minutes after a Kettleball workout at the 0.05 level of significance. Lct 141 = mcan before workout. before 7275 74 83 80 85 71 71 69 70 69 67 after Sclect the correct Hypotheses: Họ: A. 3 0 Ha: Ai Y 42 H: 24 0 Ha: ? Hp : 41 42 H:11 = 0 Hai <0 HMI > Hai>O HAMI <H2 Hili Hit 70 Test Statistic [three decimal accumcy] p-value [three decimal accuracy] Conclusion: Fail to Reject H Reject H Interpret the conclusion in context: There is not enough evidence to suegest the mean bpm before a Kettleball workout is lower than 30 minutes after the workout. There is cnough evidence to suggest thc mcan bpm before a Kcttlehall workout is lower than 30 minutes after the workout,

Answer 1

sals from gisen data, Before After Na zb My =6 XL =73 X2 = 74.6667 S₂ = 7.6070 SL = 3.9497 The null and alternative hypothesis Ho! My > M2 Ha! Mek Ma Test - Statistic is - XL-X t = -0.47630 73 - 74.6667 ) (3.9497)? (7.607012 S2 chle 6 . 6 tñ = -0.476 P-value is - 10, L=0:05 - df= mit m2 -2 p-value = 0.399 P-value >x=0.05.5o, we fail to reject Ho. There is not enough evidence to suggest the mean bpm before a a kettleball workout is lower than 30 min minutes after the workout.