Mathematics, 05.05.2020 19:28 jnsoccerboy7260
1. Pizza for carry-out A sample of 300 orders for take-out food at a local pizzeria found that the average cost of an order was $23. Assume for now that the standard deviation of the population is indeed known and equals $15. Round final answers to 2 decimal places. (a) For a 99% confidence interval find the margin of error for the average cost of an order. (b) Find the 99% confidence interval. (c) Provide an interpretation of the confidence interval. (d) If we only need to be 95% confident, does the confidence interval become wider or narrower
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You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?
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The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%
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1. Pizza for carry-out A sample of 300 orders for take-out food at a local pizzeria found that the a...
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