Question

Simple random sampling was used to obtain a sample of n = 90 elements from a...

Simple random sampling was used to obtain a sample of

n = 90

elements from a population of

N = 600.

The sample mean was

x = 85,

and the sample standard deviation was found to be

s = 9.

(a)

Estimate the population total.

=

(b)

Estimate the standard error of the population total. (Round your answer to four decimal places.)

s

=

(c)

Develop an approximate 95% confidence interval for the population total. (Round your answers to four decimal places.)

to

Math   Statistics-And-Probability   
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