Question

Among college-age students (18-24 years old), 9.2% have hypertension. During a blood-donor program conducted during finals week, a blood-pressure reading is taken first, revealing that out of 2000 donors, 208 have hypertension.
Part One:

2. Assuming that hypertension in finals week is the same as at other times, what is the probability of getting a sample result as large as ours (p-value)? (_)

3. which comes from a test-statistic of z= (_) (without sign)

Answer 1

The following information is provided: The sample size is N = 2000 , the number of favorable cases is X = 208, and the sample proportion is , and the significance level is α = 0.05

(1) Null and Alternative Hypotheses

The z-statistic is computed as follows:

  

The p-value is p = 0.0317 using the normal table

2. Assuming that hypertension in finals week is the same as at other times, what is the probability of getting a sample result as large as ours (p-value)? (0.0317)

3. which comes from a test-statistic of z= (1.857)