In order to estimate the average electric usage per month, a sample of 81 houses was selected and the electric usage was determined. Assume a population standard deviation of 450 kilowatt-hours. If the sample mean is 1858 kWh, the 95% confidence interval estimate of the population mean is

a. 1760 to 1956 kWh.
b. 1729 to 1987 kWh.
c. 1758 to 1958 kWh.
d. 1776 to 1940 kWh.


a

Business

You might also like to view...

The members of a customs union agree to the establishment of individual external trade barriers

Indicate whether the statement is true or false

Business

Prepare a comparative common-size income statement for each company for the year ending December 31, 2019. Round to two decimal places. Use a multi-step format for the income statement.

Data for Martin Corp. and Tante, Inc. follow:

Business

________ interviews require applicants to perform under work-based conditions

A) Traditional one-on-one B) Telephone C) Panel D) Action E) Virtual

Business

Explain the doctrine of strict liability with examples

What will be an ideal response?

Business