Mathematics, 28.11.2019 00:31, ethanyayger
Ccn and actmedia provided a television channel targeted to individuals waiting in super- market checkout lines. the channel showed news, short features, and advertisements. the length of the program was based on the assumption that the population mean time a shopper stands in a supermarket checkout line is 8 minutes. a sample of actual waiting imes will be used to test this assumption and determine whether actual mean waiting time differs from this standard
(1) formulate the hypotheses for this application.
(2) a sample of 120 shoppers showed a sample mean waiting time of 8.5 minutes. assume a population standard deviation of σ 3.2 minutes. what is the p-value?
(3) at a .05, what is your conclusion?
(4) using the critical value approach to test the hypothesis again, if α = 0.05.
(5) compute a 95% confidence interval for the population mean. does it support your conclusion?
Answers: 3
Mathematics, 21.06.2019 17:00, KillerSteamcar
The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle
Answers: 1
Mathematics, 22.06.2019 00:10, sonnyboi2305
Of of at a : $6, $8, $7, $6, $5, $7, $5, $7, $6, $28, $30 is?ato .ato .ato .ato .
Answers: 3
Mathematics, 22.06.2019 02:30, monica1670
Harry owes the bank money. to repay his debt, he paid $150 back to the bank each month. after 10 months, his remaining debt was $6900. what was the original amount of harry's debt? how long did it take harry to pay back his entire debt?
Answers: 2
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