You may need to use the appropriate appendix table or technology to answer this question. In order to estimate the average electric usage per month, a sample of 36 houses was selected and the electric usage was determined. Assume a population standard deviation of 335 kilowatt-hours. The margin of error is 109.43. If the sample mean is 1,808 kWh, find the 95% confidence interval estimate of the population mean. 1,698.6 to 1,917.41,473 to 2,143 1,716.2 to 1,899.81,778 to 1,838

You may need to use the appropriate appendix table or technology to answer this question. In order to estimate the average electric usage per month, a sample of 36 houses was selected and the electric usage was determined. Assume a population standard deviation of 335 kilowatt-hours. The margin of error is 109.43. If the sample mean is 1,808 kWh, find the 95% confidence interval estimate of the population mean. 1,698.6 to 1,917.41,473 to 2,143 1,716.2 to 1,899.81,778 to 1,838

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 14PPS

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Question

You may need to use the appropriate appendix table or technology to answer this question.

In order to estimate the average electric usage per month, a sample of 36 houses was selected and the electric usage was determined. Assume a population standard deviation of 335 kilowatt-hours. The margin of error is 109.43. If the sample mean is 1,808 kWh, find the 95% confidence interval estimate of the population mean.

1,698.6 to 1,917.41,473 to 2,143 1,716.2 to 1,899.81,778 to 1,838

Definition Definition Method in statistics by which an observation’s uncertainty can be quantified. The main use of interval estimating is for describing a range that is made by transforming a point estimate by determining the range of values, or interval within which the population parameter is likely to fall. This range helps in measuring its precision.

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