A Businessweek/Harris poll asked senior executives at large corporations their opinions about the economic outlook for the future. One question was, "Do you think that there will be an increase in the number of full-time employees at your company over the next 12 months?" In the current survey, 230 of 500 executives answered Yes, while in a previous year survey, 196 of 500 executives had answered Yes. Provide a 95% confidence interval estimate for the difference between the proportions at the two points in time (to 4 decimals). Do not round your intermediate calculations. .0000 to .1366 What is your interpretation of the interval estimate? Approximately ( 14% + more executives are predicting an increase + in full-time jobs. The confidence interval shows the difference may be from 14% + to 0%

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A Businessweek/Harris poll asked senior executives at large corporations their
opinions about the economic outlook for the future. One question was, "Do you
think that there will be an increase in the number of full-time employees at
your company over the next 12 months?" In the current survey, 230 of 500
executives answered Yes, while in a previous year survey, 196 of 500
executives had answered Yes. Provide a 95% confidence interval estimate for
the difference between the proportions at the two points in time (to 4
decimals). Do not round your intermediate calculations.
.0000 to
.1366
What is your interpretation of the interval estimate?
Approximately ( 14%
more executives are predicting
an increase
+ in full-time jobs. The confidence interval shows the
difference may be from
14%
to
0%
Transcribed Image Text:A Businessweek/Harris poll asked senior executives at large corporations their opinions about the economic outlook for the future. One question was, "Do you think that there will be an increase in the number of full-time employees at your company over the next 12 months?" In the current survey, 230 of 500 executives answered Yes, while in a previous year survey, 196 of 500 executives had answered Yes. Provide a 95% confidence interval estimate for the difference between the proportions at the two points in time (to 4 decimals). Do not round your intermediate calculations. .0000 to .1366 What is your interpretation of the interval estimate? Approximately ( 14% more executives are predicting an increase + in full-time jobs. The confidence interval shows the difference may be from 14% to 0%
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