The following results come from two independent random samples taken of two populations: Sample 1 n1 = 50 x?1 = 13.6 ?1 = 2.2 Sample 2 n2 = 35 x?2 = 11.6 ?2 = 3.0 a. What is the point estimate of the difference between the two population means? (5 pts. Put this answer in Blank 1). b. Provide a 95% confidence interval for the difference between the two population means, using the population standard deviations provided. (5 pts. Put this answer in Blank 2). Blank # 1 Blank # 2
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Point estimate = $\bar{x}_1 - \bar{x}_2 = 13.6 - 11.6 = 2.0$ So, the point estimate of the difference between the two population means is $\boxed{2.0}$. b. Show more…
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