Question: In this chapter technical detail were presented for finding a

In this chapter technical detail were presented for finding a t-multiplier for constructing a confidence interval for a population mean. Use appropriate software, a calculator, or a website to find a confidence interval for the population mean for the following situations. Use the t-multiplier in each case.
a. Find a 95% confidence interval for the population mean age of Australian males in couples who separated during the time period of the study by Butterworth et al (2008). Relevant numbers from the table are the sample mean of 37.65 years, SEM of 0.75, and sample size of 114.
b. Repeat part (a) for the population of males in couples who remained intact. Relevant numbers from the table are the sample mean of 39.18 years, SEM of 0.19, and sample size of 1384.
c. Repeat part (a) using a confidence level of 90%.

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