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 a t-distribution less than – 1.4 if the samples have sizes n1 = 30 and n2 = 40. Enter the exact answer for the degrees of freedom and round your answer for the area to three decimal places. degrees of freedom = proportion = i

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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 a t-distribution less than – 1.4 if the samples have sizes nị
30 and n2
: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
Transcribed Image Text: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 a t-distribution less than – 1.4 if the samples have sizes nị 30 and n2 :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
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