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.In a recent year, the scores for the reading portion of a test were normally distributed, with a mean of22.8 and a standard deviation of 6.6. Complete parts (a) through (d)

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ANSWERS WILL BE CHECKED – please only answer if you know what you are doing. IF not, please do not; no copy and paste answers or your answer will be flagged.  ATTACHMENT PREVIEW Download attachment1.In a recent year, the scores for the reading portion of a test were normally distributed, with a mean of22.8 and a standard deviation of 6.6. Complete parts (a) through (d) below.ANSWERS:2.ANSWER:

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View the Answer3.ANSWERS:4.You are given the sample mean and the populaTon standard deviaTon. Use this informaTon toconstruct the 90% and 95% conFdence intervals for the populaTon mean. Which interval is wider? Ifconvenient, use technology to construct the conFdence intervals.A random sample of 43 gas grills has a mean price of $630.40. Assume the population standarddeviation is $56.30.ANSWERS:

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