Question: 1. Random samples of 75 students are drawn from the senior year population of a large city public school system in studying absences per month. With x¯ = 3 and s = 0.7, construct a 95% confidence interval in estimating the population mean. Hint: The critical value is approximately 1.992.
2. Random samples of fish of size 200 are taken from fishing waters near a certain island, checking for irregularities in gill structure. With x¯ = 7 and s = 0.01, construct a 95% confidence interval in estimating the population mean. Hint: The critical value is approximately 1.971.