Question

View Policies Current Attempt in Progress 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 proportion in at-distribution less than - 1.4 if the samples have sizes n 1 = 30 and n 2 - 40. 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 e Textbook and Media Hint Save for Later Attempts: 0 of 1 used Submit Answer

Answer 1

0 solir need Girent a to distribution, we using to find the values of Degress of freedom and proportions, data. for the given m2 m, = 30, = 40 and to distribution less than al-4 degrees of freedom (df) =minn,-1, ₂-1) = mir(30-1,40-1) 2) mi 29,39 min (29,39) .: degrees of fremom df) = 29 propostion p(t2-1.4) using t-distribution Caluclatos 0.086 A propostion 0.086