Summary statistics are given for independent simple random samples from two populations. Use the pooled t-test to conduct a left-tailed hypothesis test using a significance level of a= 0.05. x, = 20,...

Extracted text: Summary statistics are given for independent simple random samples from two populations. Use the pooled t-test to conduct a left-tailed hypothesis test using a significance level of a= 0.05. x, = 20, s, = 5, n, = 10, x2 = 27, s2 = 6, n2 = 14 O A. Test statistic: t= - 3.012 Critical value: - 1.717 P<0.005 o="" b.="" test="" statistic:="" t="-" 3.012="" critical="" value:="" -="" 2.074=""><0,005 reject="" h,="" o="" c.="" test="" statistic;="" t="-" 1,526526="" reject="" h,="" o="" d.="" test="" statistic:="" t="-" 0.916.916="" critical="" value:="" -="" 1.717="" critical="" value:="" -="" 2.074="" 0.05="" 0.001="" do="" not="" reject="">