Suppose a random sample of 14 people 30-39 years of age produced the household incomes shown here. Use these data to determine a point estimate for the population variance of household incomes for people 30-39 years of age and construct a 95% confidence interval. Assume household income is normally distributed. $ 36,600 $44,800 33,500 34,900 42,300 32,400 27,800 41,200 46,600 38,500 40,200 31,300 35,500 36,800

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