Mathematics, 24.06.2019 03:00 singlegirlforlife541
In a random sample of 90 students in first grade, the mean hours of sleep per night was 9.2 with a standard deviation of 0.37 in a random sample of 70 students in the 12th grade, the mean hours of sleep per night was 7.3 with a standard deviation of 0.58. construct a 99% confidence interval for the difference between the mean hours of sleep. a. (1.82 h, 1.98 h)b. (1.79 h, 2.01 h)c. (1.74 h, 2.06 h)d. (1.69 h, 2.11 h)
Answers: 1
Mathematics, 21.06.2019 15:30, fooligan3448
The local farm is advertising a special on fresh picked peaches. the farm charges $4.25 to pick your own peck of peaches and $3.50 for each additional peck you pick. write an equation for the total cost of peaches in terms of the number of pecks. deine your variables. how much does it cost to pick 3 pecks of peaches?
Answers: 3
Mathematics, 22.06.2019 01:10, Yailynn598
You work in a hospital that has 9 floors. you need to see 3 patients on each floor. how many patients do you need to see in all?
Answers: 2
Mathematics, 22.06.2019 02:30, pineapplepizaaaaa
Your friend, taylor, missed class today and needs some identifying solutions to systems. explain to taylor how to find the solution(s) of any system using its graph.
Answers: 3
In a random sample of 90 students in first grade, the mean hours of sleep per night was 9.2 with a s...
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