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led in ate Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval. *4 = 17,5 = 4. n = 19, x2 = 20, 52 = 3, n2 = 17 a. Left-tailed test, a = 0.05 b. 90% confidence interval nd a. What are the correct hypotheses for a left-tailed test? O A. Ho: P = H2 Hà- Hệ > H2 OC. Ho<H2 H =12 O E. Ho: 11 =12 НАВ, #2 OB. Ho: H *12 HA! H4 =12 OD. Ho Hy>H2 HH1 H2 OF. Ho: H+ = H2 Hitt<th Compute the test statistic. t=(Round to three decimal places as needed.) Determine the P-value =(Round to four decimal places as needed.) P= Since the P-value is than a Но b. The 90% confidence interval is from to

Provided below are summary statistics for independent simple random samples from two populations. Use the poo and the pooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence inte X4 = 17, S4 = 4, n = 19, X2 = 20, S2 = 3, n2 = 17 a. Left-tailed test, a = 0.05 b. 90% confidence interval d O A. Ho: 11 = H2 Hai Hq>12 Oc. Ho H <H2 Ha: H+ = H2 OE Ho Hy=12 H:H17H2 B. Hoi Hy #12 Ha Hy = 12 OD. Ho: Hy > H2 Ha: H1 =12 OF Ho: P = H2 H:H<H2 3 Compute the test statistic. (Round to three decimal places as needed.) Determine the P-value. P= (Round to four decimal places as needed.) Since the P-value is than a HO b. The 90% confidence interval is from to (Round to three decimal places as needed.)