A researcher is interested in comparing the resting pulse rate of women who exercise regularly and women who do not exercise regularly.
She wants to perform a hypothesis test to determine whether the mean resting pulse rate of women who exercise at least 6 hours per week is less than the mean resting pulse rate of women who exercise less than 6 hours per week. Identify the variable for the proposed hypothesis test.
A) Resting pulse rate
B) Difference between mean resting pulse rate of women who exercise regularly and mean resting pulse rate of women who do not exercise regularly
C) Mean resting pulse rate
D) Hours of exercise per week
Question 2
Three board members for a nonprofit organization will be selected from a group of five people. The board members will be selected by drawing names from a hat. The names of the five possible board members are Allison, Bob, Charlie, Dave, and Emily.
The possible outcomes can be represented as follows.
ABC ABD ABE ACD ACE
ADE BCD BCE BDE CDE
Here, for example, ABC represents the outcome that Allison, Bob, and Charlie are selected to be on the board. The event A is defined as follows.
A = event that Bob and Dave are both selected
List the outcomes that comprise the event (not A).
A) ABD, BCD, BDE B) ABC, ABE, ACE, ADE, BCE, CDE
C) ABC, ABE, ACD, ACE, ADE, BCE, CDE D) ACE
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