# Question: Suppose a random sample of 14 people 30 39 years of

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.

$37,500 ... 44,800

33,500 ..... 36,900

42,300 ..... 32,400

28,000 ..... 41,200

46,600 ..... 38,500

40,200 ..... 32,000

35,500 ..... 36,800

$37,500 ... 44,800

33,500 ..... 36,900

42,300 ..... 32,400

28,000 ..... 41,200

46,600 ..... 38,500

40,200 ..... 32,000

35,500 ..... 36,800

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