Essay
THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A sales representative has 398 accounts.From a random sample of 56 of these accounts,she found that the average yearly order was $1,239 with a standard deviation of $73,and that 27 had placed an order within the last 30 days.
-Find the 90% confidence interval for the proportion of all accounts that placed an order within the last 30 days.
Correct Answer:
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=
×
=
×
= 0.0039.
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Correct Answer:
Verified
=
×
=
×
= 0.0039.
He...
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
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