A scientist would like to test if a certain vaccine’s side effect is increased heart rate. To test this claim, a random sample of 35 human subjects were tested and it was found out that their average resting heart rate is 87 beats per minute (bpm). Studies suggest that the average resting heart rate of a normal adult is around 80 beats per minute (bpm) with a standard deviation of 20 beats per minute (bpm). Which of the conclusion is supported by the data at 0.01 level of significance? a. The vaccine does not significantly increase the average resting heart rate. b. There is no sufficient evidence to say that the vaccine significantly increase the average resting heart rate. c. The vaccine significantly increase the average resting heart rate. d. There is no sufficient evidence to say that the vaccine does not significantly increase the average resting heart rate
2. A scientist would like to test if a certain vaccine’s side effect is increased heart rate. To test this claim, a random sample of 35 human subjects were tested and it was found out that their average resting heart rate is 87 beats per minute (bpm). Studies suggest that the average resting heart rate of a normal adult is around 80 beats per minute (bpm) with a standard deviation of 20 beats per minute (bpm). Which of the conclusion is supported by the data at 0.01 level of significance?
a. The vaccine does not significantly increase the average resting heart rate.
b. There is no sufficient evidence to say that the vaccine significantly increase the average resting heart rate.
c. The vaccine significantly increase the average resting heart rate.
d. There is no sufficient evidence to say that the vaccine does not significantly increase the average resting heart rate
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