MAT232 FINAL EXAM.docx - Use the normal distribution of heights of adult women which has a mean of 165 centimeters and a standard deviation of 8

MAT232 FINAL EXAM.docx - Use the normal distribution of...

  • Ashford University
  • MAT 232
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  • VRC_0716
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Use the normal distribution of heights of adultwomen, which has a mean of 165 centimeters and a standard deviation of 8 centimeters, and the following table with the standard scores and percentiles for a normal distribution to find the indicated quantity.Consider the scatter diagram in figure to the right.a.Which point is an outlier? Ignoring the outlier, estimate or compute the correlation coefficient for the b. Now include the outlier. How does the outlier affect the correlation coefficient? Estimate or compute thecorrelation coefficient for the complete data set.Assume that population means are to be estimated from the samples described. Use the sample results to approximate the margin of error and 95% confidence interval. Assume that you want to construct a 95% confidence interval estimate of a population mean. Find an estimate of the sample size needed to obtain the specified margin of error for the 95% confidence interval. The sample standard deviation is given below.

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