Determine the sample size necessary under the following conditions. a. To estimate with = 44,

Determine the sample size necessary under the following conditions.

a. To estimate µ with σ = 44, E = 3, and 95% confidence.

b. To estimate µ with a range of values from 20 to 88 with E = 2 and 90% confidence.

c. To estimate p with p unknown, E = .04, and 98% confidence.

d. To estimate p with E = .03, 95% confidence, and p thought to be approximately .70.