Author Question: Solve the problem. Round your answer to the nearest whole number unless indicated otherwise.At one ... (Read 111 times)

penza · **on:** Jan 18, 2020

Question 1

Solve the problem. Round your answer to the nearest whole number unless indicated otherwise.

Among a sample of 76 students selected at random from one college, the mean number of siblings is 1.5 with a standard deviation of 1.2. Find the 95% confidence interval. Round your answer to two decimal places.
◦ 1.22 < μ < 1.78
◦ 1.36 < μ < 1.64
◦ 74.04 < μ < 77.96
◦ 1.47 < μ < 1.53

Question 2

Solve the problem. Round your answer to the nearest whole number unless indicated otherwise.

At one hospital, a random sample of 100 women giving birth to their first child is selected. Among this sample, the mean age was 25.6 with a standard deviation of 5.9. Find the 95% confidence interval. Round your answer to two decimal places.
◦ 24.42 < μ < 26.78
◦ 24.3 < μ < 26.9
◦ 25.01 < μ < 26.19
◦ 25.48 < μ < 25.72

morrie123456 · **Reply #1 on:** Jan 18, 2020

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