Mathematics, 29.01.2020 21:46 derrishamckenzie22
Ateacher wants to compare the mean geology scores of two different classes. she is testing the null hypothesis that there is no difference in the population mean scores of the two classes. the difference of the sample means is 51.4. if the standard deviation of the distribution of the difference of sample means is 16.66, what is the 95% confidence interval for the population mean difference? a. between -33.2 and +33.2 b. between -49.9 and +49.9 c. between -102.8 and +102.8 d. between -154.2 and +154.2
Answers: 2
Mathematics, 21.06.2019 16:00
Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?
Answers: 1
Mathematics, 21.06.2019 18:30
Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much
Answers: 2
Mathematics, 21.06.2019 18:30
Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =
Answers: 1
Ateacher wants to compare the mean geology scores of two different classes. she is testing the null...
History, 28.01.2020 08:31
Mathematics, 28.01.2020 08:31
Mathematics, 28.01.2020 08:31
English, 28.01.2020 08:31
Biology, 28.01.2020 08:31
Biology, 28.01.2020 08:31
Biology, 28.01.2020 08:31
English, 28.01.2020 08:31
English, 28.01.2020 08:31
Biology, 28.01.2020 08:31
Mathematics, 28.01.2020 08:31
Biology, 28.01.2020 08:31