Mathematics, 25.04.2020 00:47 Adailson8890
A university dean of students wishes to estimate the average number of hours students spend doing homework per week. the standard deviation from a previous study is 6.2 hours. how large a sample must be selected if he wants to be 99% confident of finding whether the true mean differs from the sample mean by 1.5 hours.
Answers: 1
Mathematics, 21.06.2019 16:10
The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.
Answers: 1
Mathematics, 21.06.2019 19:00
At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?
Answers: 1
Mathematics, 21.06.2019 19:00
Which sentence uses an objective tone? we will plant the best garden of any school in the area. the new campus garden will surely be envied by other schools. a garden would provide numerous benefits to the students. you will probably agree that gardens have many benefits.
Answers: 3
Mathematics, 21.06.2019 19:30
Plz.yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?
Answers: 1
A university dean of students wishes to estimate the average number of hours students spend doing ho...
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