Senior citizens. A health care center believes that with a daily one-hour morning walk, 30% of senior citizens would have better health records. The health center has 375 senior citizens’ health records.

a) Can you use the Normal model to describe the sampling distribution model for the sample proportion of senior citizens who have better health records due to the daily onehour morning walk? Check the conditions, and discuss any assumptions you need to make.

b) Sketch and clearly label the sampling model, based on the 68–95–99.7 Rule.

c) How many senior citizens in the center might have better health records due to the daily one-hour morning walk?

Explain.