Mathematics, 09.04.2021 01:00, bluenblonderw
K. Brew sells a wide variety of outdoor equipment and clothing. The company sells both through mail order and via the internet. Random samples of sales receipts were studied for mail-order sales and internet sales, with the total purchase being recorded for each sale. A random sample of 8 sales receipts for mail-order sales results in a mean sale amount of $76.10 with a standard deviation of $24.75. A random sample of 17 sales receipts for internet sales results in a mean sale amount of $66.00 with a standard deviation of $16.25. Using this data, find the 95% 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: 1
Mathematics, 21.06.2019 18:00, tasnimsas3
Plz a. s. a. p. the table shows the number of male and female contestants who did not win a prize. what is the probability that a randomly selected contestant won a prize, given that the contestant was female? write the probability as a percent. round to the neares tenth, if needed.
Answers: 1
Mathematics, 22.06.2019 02:30, ChaseRussell24
In terms of x, find an expression that represents the area of the shaded region. the outer square has side lengths of (x+5) and the inner square has side lengths of (x-2), as shown. area: a1 x + a2 square units submit
Answers: 3
K. Brew sells a wide variety of outdoor equipment and clothing. The company sells both through mail...
Mathematics, 17.10.2021 14:50
Mathematics, 17.10.2021 14:50
Mathematics, 17.10.2021 14:50
Mathematics, 17.10.2021 14:50
Health, 17.10.2021 14:50
Mathematics, 17.10.2021 14:50