5.7 1-al2 ne ES 3S Alpha 0 5 84 ES = nu San aliacodomou 2. An investigator wants to estimate caffeine consumption in high school students. How man students would be required to estimate the proportion of students who consume coffee? Suppose we want the estimate to be within 2%ofthe true proportion with 95% confidence 2- 8. 1 Alpha 15 50A95)- (1-0.5)(19 E= n= 335 35 (153644) 32 oni su 3. A crossover trial is planned to evaluate the impact of an educational intervention program to reduce alcohol consumption in patients determined to be at risk for alcohol problems. The plan is to measure alcohol consumption (the number of drinks on a typical drinking day) before the

Question

I would like to know if I did problem 2 of my homework correctly.

5.7
1-al2
ne
ES
3S
Alpha 0 5
84
ES =
nu San
aliacodomou
2. An investigator wants to estimate caffeine consumption in high school students. How man
students would be required to estimate the proportion of students who consume coffee? Suppose
we want the estimate to be within 2%ofthe true proportion with 95% confidence
2-
8. 1
Alpha 15
50A95)-
(1-0.5)(19
E=
n= 335
35 (153644) 32
oni su
3. A crossover trial is planned to evaluate the impact of an educational intervention program to
reduce alcohol consumption in patients determined to be at risk for alcohol problems. The plan
is to measure alcohol consumption (the number of drinks on a typical drinking day) before the
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Transcribed Image Text

5.7 1-al2 ne ES 3S Alpha 0 5 84 ES = nu San aliacodomou 2. An investigator wants to estimate caffeine consumption in high school students. How man students would be required to estimate the proportion of students who consume coffee? Suppose we want the estimate to be within 2%ofthe true proportion with 95% confidence 2- 8. 1 Alpha 15 50A95)- (1-0.5)(19 E= n= 335 35 (153644) 32 oni su 3. A crossover trial is planned to evaluate the impact of an educational intervention program to reduce alcohol consumption in patients determined to be at risk for alcohol problems. The plan is to measure alcohol consumption (the number of drinks on a typical drinking day) before the