A random sample of size n, = 21, taken from a normal population with a standard deviation o, = 5, has a mean x1 = 87. A second random sample of size n.= 38 taken from a different normal population with a standard deviation o, = 3, has a mean x2 = 33. Find a 94% confidence interval for u, - u,. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. The confidence interval is (Round to one decimal place as eeded.) Enter your answer in the edit fields and then click Check Answer.

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A random sample of size n, = 21, taken from a normal population with a standard deviation o, = 5, has a mean x1 = 87. A second random sample of size n= 38. taken from a
different normal population with a standard deviation o, = 3, has a mean x2 = 33. Find a 94% confidence interval for u, - u,.
Click here to view page 1 of the standard normal distribution table.
Click here to view page 2 of the standard normal distribution table.
The confidence interval is
(Round to one decimal place as eeded.)
Enter your answer in the edit fields and then click Check Answer.
All parts showing
Clear All
Check Answer
US
9 3:02
acer
%
&
peq
7
8.
9.
Transcribed Image Text:A random sample of size n, = 21, taken from a normal population with a standard deviation o, = 5, has a mean x1 = 87. A second random sample of size n= 38. taken from a different normal population with a standard deviation o, = 3, has a mean x2 = 33. Find a 94% confidence interval for u, - u,. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. The confidence interval is (Round to one decimal place as eeded.) Enter your answer in the edit fields and then click Check Answer. All parts showing Clear All Check Answer US 9 3:02 acer % & peq 7 8. 9.
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