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Do you know what the answer should be?
This has been giving me fits for over an hour now and I can't understand what I'm doing wrong.
"In constructing a 90% interval estimate for the ratio of two population variances, σ1^2/σ2^2, two independent samples of sizes n1 = 41 and n2 = 61 are drawn from the populations. If the sample variances are s12 = 515 and s22 = 920, then the upper confidence limit is:"
So it's asking for the upper limit. The formula should be (s1^2/s2^2) Fd2,df1
So I did 920/515 for the sample variances since 920 is the bigger variance it goes on the numerator. My degrees of freedom should be df1 = 40, df2= 60. I looked it up in my F table at the alpha level of 5% and the value is 1.59. Multiply that with the 920/515 to get the answer but this isn't correct. No idea what's wrong.
Do you know what the answer should be?
"His programming is malfunctioning. It begins! Get your weapons, he's going to become a killbot!!!" - bryangoodrich
The answer choices are
.245
.341
.890
.352
.918
Its not .341 or. 890 as ive already tried them
I've got like an hour left to turn this in can someone please help me, it can't be that difficult
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