Homework: Ch1O HW ONLINE Save Score: 0 of 1 pt 30 of 35 (33 complete) Hw Score:
ID: 3274437 • Letter: H
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Homework: Ch1O HW ONLINE Save Score: 0 of 1 pt 30 of 35 (33 complete) Hw Score: 88.33%, 30.92 of 35 pts X10.3.1 Question Help * Complete parts (a) through (c) below (a) Determine the critical value(s) for a right-tailed test of a population mean at the = 0.10 level of significance with 20 degrees of freedom. (b) Determine the critical value(s) for a left-tailed test of a population mean at the =0.01 level of significance based on a sample size of n = 10. c) Determine the critical value(s) for a two-tailed test of a population mean at the -0.10 level of significance based on a sample size of n Click here to view the t-Distribution Area in Right Tail (a) tcrit L (Round to three decimal places as needed.)Explanation / Answer
(a) Critical value of right tailed test at alpha = 0.10 level of significance with dF = 20
tcrit (0.10, 20)= 1.325
(b) Critical value of left tailed test at alpha = 0.01 with size n = 10 that means degree of freedom dF = 10 - 1 =9
tcrit (0.01, 9) = 2.821
(c) Critical value of two- tailed test at alpha = 0.10 with size n = 18 that means degree of freedom dF = 18 - 1 = 17
tcrit (0.10, 17) = 1.740
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