Independent random sampling from two normally distributed populations gives the results below. Find a 90% confidence interval estimate of the difference between the means of the two populations. ny = 63 x = 396 Oy = 15 ny = 40 y = 364 oy = 27 The confidence interval is (Round to four decimal places as needed)

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Independent random sampling from two normally distributed populations gives the results below. Find a 90% confidence interval estimate of the difference between the means of the two populations.
nx = 63
= 396
Ox = 15
ny = 40
y = 364
Oy = 27
The confidence interval is<Hx-Hy<U
(Round to four decimal places as needed)
Transcribed Image Text:Independent random sampling from two normally distributed populations gives the results below. Find a 90% confidence interval estimate of the difference between the means of the two populations. nx = 63 = 396 Ox = 15 ny = 40 y = 364 Oy = 27 The confidence interval is<Hx-Hy<U (Round to four decimal places as needed)
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