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1. A sample of households in Colorado shows the following statistics about household income: Mean: 67000...

1. A sample of households in Colorado shows the following statistics about household income:

Mean: 67000

Standard Deviation: 5700

Sample Size: 17

At the 87% confidence level, what is the upper limit for the confidence interval formed with these values? Round to 2 decimal places.

AND

2.

A sample of households in Colorado shows the following statistics about household income:

Mean: 60000

Standard Deviation: 5000

Sample Size: 10

At the 80% confidence level, what is the lower limit the confidence interval formed with these values? Round to 2 decimal places

Math   Statistics-And-Probability   
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Answer #1

1. upper limit: 69093.18

2)

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