Mathematics, 03.10.2019 07:00 jfiicoh
Acertain region of america with over 500,000 households has a mean household income of $70,000 with a standard deviation of $20,000. economists plan to take random samples of 625 households and calculate the sample mean income for each sample.
1. calculate the sample mean
2. calculate the standard deviation of the sample.
Answers: 1
Mathematics, 21.06.2019 18:10, heavenwagner
which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125
Answers: 2
Mathematics, 21.06.2019 19:30, fantasticratz2
Nikolas calculated the volume of the prism. his work is shown below.
Answers: 1
Mathematics, 21.06.2019 21:00, kmassarotti
Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w
Answers: 1
Acertain region of america with over 500,000 households has a mean household income of $70,000 with...
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