Use a t-distribution to answer this question. Assume the samples are random samples from distributions that are reasonably normally distributed, and that a t-statistic will be used for inference about the difference in sample means. State the degrees of freedom used. Find the propotion in a t-distribution above 2.1 if the samples have sizes n1 = 12 and n2 = 12. Enter the exact answer for the degrees of freedom and round your answer for the area to three decimal places. degrees of freedom = i proportion = i

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Q: ..... a. Find the test score at the 75th percentile. The 75th percentile is Round to the nearest…

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A: Solution: Data are distributed normally To find  : the- Z score

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Q: Find t0.69t0.69 for TT distribution with 8282 degrees of freedom. t0.69=t0.69= (Round the answer to…

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