Question

A simple random sample of 800 elements generates a sample proportion p¯=.88. a. Provide a 99% confidence interval for the population proportion (__,__). b. Provide a 95% confidence interval for the population proportion(__,__).

Answer #1

A simple random sample of 800 elements generates a sample
proportion p¯=.88. a. Provide a 99% confidence interval for the
population proportion (__,__). b. Provide a 95% confidence interval
for the population proportion(__,__).

A simple random sample of 1,000 elements generates a sample
proportion p=0.55 .
a. Provide the 99% confidence interval for the population
proportion (to 4 decimals).
b. Provide the 95% confidence interval for the population
proportion (to 4 decimals).

A simple random sample of 700 elements generates a sample
proportion p_= 0.80 .
a. Provide the 95% confidence interval for the population
proportion (to 4 decimals). (_,_)
b. Provide the 99% confidence interval for the population
proportion (to 4 decimals). (_,_)

A simple random sample of 60 items from a population with
σ = 5
resulted in a sample mean of 31.
(a)
Provide a 90% confidence interval for the population mean.
(b)
Provide a 95% confidence interval for the population mean.
(c)
Provide a 99% confidence interval for the population mean.

A simple random sample of 90 items from a population with ? = 7
resulted in a sample mean of 31. If required, round your answers to
two decimal places.
a. Provide a 90% confidence interval for the
population mean.
______ to ______
b. Provide a 95% confidence interval for the
population mean.
_____ to _____
c. Provide a 99% confidence interval for the
population mean.
_____ to _____

A simple random sample of 70 items from a population with = 8
resulted in a sample mean of 34.
If required, round your answers to two decimal places.
a. Provide a 90% confidence interval for the
population mean.
to
b. Provide a 95% confidence interval for the
population mean.
to
c. Provide a 99% confidence interval for the
population mean.

A simple random sample of 60 items from a population with σ = 8
resulted in a sample mean of 32. (Round your answers to two decimal
places.) (a) Provide a 90% confidence interval for the population
mean. to (b) Provide a 95% confidence interval for the population
mean. to (c) Provide a 99% confidence interval for the population
mean. to

A simple random sample of 70 items from a population with σ = 8
resulted in a sample mean of 31.
If required, round your answers to two decimal places.
a. Provide a 90% confidence interval for the
population mean.
to
b. Provide a 95% confidence interval for the
population mean.
to
c. Provide a 99% confidence interval for the
population mean.

A simple random sample of 60 items from a population with
σ = 8
resulted in a sample mean of 34. (Round your answers to two
decimal places.)
A. Provide a 90% confidence interval for the population
mean.
B. Provide a 95% confidence interval for the population
mean.
C.Provide a 99% confidence interval for the population mean.

Exhibit E
Suppose a simple random sample of 150 students to study the
proportion of students who live in dormitories indicates a sample
proportion of 0.35.
Refer to Exhibit E. To construct a 95% confidence interval for
the population proportion, p, the margin of error is:

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