Question
Dont need work just answers please. Part A. A 95% confidence interval for the mean reading achievement score for the population of third-grade students is
Dont need work just answers please. Part A. A 95% confidence interval for the mean reading achievement score for the population of third-grade students is (44.2, 54.2). The margin of error of this interval is ____________. A.) 95% B.) 2.5 C.) 54.2 D.) Answer cannot be determined E.) 5
Part B. An inspector inspects large loads of potatoes to determine the proportion p in the shipment with major defects prior to making potato chips. She selects an SRS of 50 potatoes from over 2000 in the load. Only 2 of the potatoes sampled are found to have major defects. What is the population of interest in the above data? A.) All Potatoes in the truck B.) All Potatoes grown in the U.S C.) All Potatoes that will eventually be potato chips D.) All Potatoes grown on farms owned by the company that makes chips. E.) All Potatoes grown in the world
Part C.) An inspector inspects large loads of potatoes to determine the proportion p in the shipment with major defects prior to making potato chips. She selects an SRS of 50 potatoes from over 2000 in the load. Only 2 of the potatoes sampled are found to have major defects. What is the sample proportion p-hat of potatoes having major defects? A.) .02 B.) .025 C.) 2 D.) .04 E.) 4
Part D.) An inspector inspects large loads of potatoes to determine the proportion p in the shipment with major defects prior to making potato chips. She selects an SRS of 50 potatoes from over 2000 in the load. Only 2 of the potatoes sampled are found to have major defects. Using the above data, which of the following assumptions for inference about a proportion using a confidence interval are violated? A.) The data are on an SRS from the population interest B.) The population is at least ten times as large as the sample C.) There are no apparent outliers or skewness D.) The sample size are both large enough E.) There appear to be no violations | |
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