Answer:
The sample size is 74
Pbar = 0.05
The variance information is needed
Step-by-step explanation:
The population variance ,
Confidence Interval level = 95% = 0.95
Significance Interval = 1 - CI
Significance Interval = 1 - 0.95 = 0.05
Error margin = 5
The critical value = = 1.96 (From the z table)
The sample size is given by:
Since P = 0.95
The variance information is needed in this question when calculating the sample size