Mathematics, 19.07.2021 20:40 babycakesmani
A random sample of 10 sales receipts for internet sales results in a mean sale amount of $66.30 with a standard deviation of $15.75. Using this data, find the 98% confidence interval for the true mean difference between the mean amount of mail-order purchases and the mean amount of internet purchases. Assume that the population variances are not equal and that the two populations are normally distributed. Step 1 of 3 : Find the point estimate that should be used in constructing the confidence interval.
Answers: 2
Mathematics, 21.06.2019 21:00
Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)
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Mathematics, 21.06.2019 22:30
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Mathematics, 21.06.2019 23:00
The perimeter of a rectangular rug is 24 feet. the length of the rug is 1 2/5 i s width. what is the area of the rug
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A random sample of 10 sales receipts for internet sales results in a mean sale amount of $66.30 with...
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