Mathematics, 09.11.2019 02:31, marquion
Asimple random sample with n=54 provided a sample mean of 22.5 and a sample standard deviation of 4.4.
a. develop a 90% confidence interval for the population mean.
b. develop a 95% confidence interval for the population mean.
c. develop a 99% confidence interval for the population mean.
d. what happens to the margin of error and the confidence interval as the confidence level is increased?
Answers: 3
Mathematics, 21.06.2019 17:30, samymaria1344
Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?
Answers: 1
Mathematics, 21.06.2019 18:50, BrainzOli7408
If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?
Answers: 2
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