Mathematics, 11.04.2020 01:52 jolainjoseph01998
The ages of MBA students at a university are normally distributed with a known population variance of 10.24. Suppose you are asked to construct a 95% confidence interval for the population mean age if the mean of a sample of 36 students is 26.5 years. If a 99% confidence interval is constructed instead of a 95% confidence interval for the population mean, then
A. the resulting margin of error will increase and the risk of reporting an incorrect interval will increase
B. the resulting margin of error will decrease and the risk of reporting an incorrect interval will increase
C. the resulting margin of error will increase and the risk of reporting an incorrect interval will decrease
D. the resulting margin of error will decrease and the risk of reporting an incorrect interval will decrease
Answers: 2
Mathematics, 22.06.2019 04:20, 2Dgames
Out of the 180 students at a summer camp, 72 signed up for canoeing. there were 23 students who signed up for trekking, and 13 of those students also signed up for canoeing. use a two-way table to organize the information and answer the following question: approximately what percentage of students signed up for neither canoeing nor trekking? 72% 40% 54% 98%
Answers: 1
Mathematics, 22.06.2019 04:40, kikiwaka1
Complete the frequency table: method of travel to school walk/bike bus car row totals under age 15 60 165 age 15 and above 65 195 column totals 152 110 98 360 what percentage of students under age 15 travel to school by car? round to the nearest whole percent.
Answers: 2
Mathematics, 22.06.2019 05:00, hehefjf8610
Each year a store decreased the price of a certain model of tv by $35 . if the price in 2001 was $1950 , what was the price in 2009
Answers: 1
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