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A market researcher plans to sample sales receipts at

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16)A market researcher plans to sample sales receipts at a natural food store to estimatethe average size (in dollars) of a customer purchase. Previous analysis suggests thatthe standard deviation of the purchase amount is approximately $25.In order to calculate a 95% confidence interval oftotalwidth less than $5, how manysales records should the researcher include in her sample?97271385RThe answer cannot be determined from the information provided.
17)Jaune Magazine (JM) must decide whether or not to publish a tell-all story about a celebrity.If the story ends up having major impact, JM will realize substantial profits from additionalmagazine sales, subscriptions, and advertising revenues. However, if JM publishes the story,JM will face a lawsuit; if it loses the suit, the penalties could be substantial. The tree belowsummarizes JM's decision.The EMV of publishing the story is $10,000. Based on this EMV, JM should publish the story.If the publisher chooses not to publish the story, which of the following best describes thepublisher's attitude towards this decision?
R
18)The regression analysis below characterizes the relationship between monthly icecream consumption (in pints per household) and the independent variables "averagemonthly temperature" (in degrees Fahrenheit) and "average price" (in dollars per pint).At a significance level of 0.05, which independent variables contribute significantly tothe consumption of ice cream?R
19)The scatter diagram and regression line belowcharacterize the relationship between monthly icecream consumption (in pints per household) and theindependent variable "average monthly temperature"(in degrees Fahrenheit).The residual errors are defined as

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Term
Spring
Professor
mrs.o
Tags
Statistics, Regression Analysis, Standard Deviation, Statistical hypothesis testing, Jm

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