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population mean using the accompanying...

Construct a 99% confidence interval to estimate the population mean using the accompanying data. What assumptions need to be made to construct this interval?

x=67

σ=11

n=11

What assumptions need to be made to construct this interval?

A.

The population mean will be in the confidence interval.

B.

The population is skewed to one side.

C.

The sample size is less than 30.

D.

The population must be normally distributed.

Your answer is correct.

With 99% confidence, when n=11, the population mean is between the lower limit of nothing and the upper limit of nothing.

(Type an integer or decimal rounded to two decimal places as needed.)Construct a 90% confidence interval to estimate the population mean using the accompanying data. What assumptions need to be made to construct this interval?

x=85

σ=15

n=15

What assumptions need to be made to construct this interval?

A.

The sample size is less than 30.

B.

The population is skewed to one side.

C.

The population must be normally distributed.

Your answer is correct.D.

The population mean will be in the confidence interval.

With 90% confidence, when n=15, the population mean is between the lower limit of nothing and the upper limit of nothing.

(Type integers or decimals rounded to two decimal places as needed.)

x=67

σ=11

n=11

What assumptions need to be made to construct this interval?

A.

The population mean will be in the confidence interval.

B.

The population is skewed to one side.

C.

The sample size is less than 30.

D.

The population must be normally distributed.

Your answer is correct.

With 99% confidence, when n=11, the population mean is between the lower limit of nothing and the upper limit of nothing.

(Type an integer or decimal rounded to two decimal places as needed.)Construct a 90% confidence interval to estimate the population mean using the accompanying data. What assumptions need to be made to construct this interval?

x=85

σ=15

n=15

What assumptions need to be made to construct this interval?

A.

The sample size is less than 30.

B.

The population is skewed to one side.

C.

The population must be normally distributed.

Your answer is correct.D.

The population mean will be in the confidence interval.

With 90% confidence, when n=15, the population mean is between the lower limit of nothing and the upper limit of nothing.

(Type integers or decimals rounded to two decimal places as needed.)

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