4. A teacher noted that the mean scores of a random sample of 15 grade 8 students who had taken a special test was 80.50. If s=3.1, and the sample size is taken from an approximately normally distributed population, find the point estimate and interval estimate of the population mean with confidence interval of 99%.
4. A teacher noted that the mean scores of a random sample of 15 grade 8 students who had taken a special test was 80.50. If s=3.1, and the sample size is taken from an approximately normally distributed population, find the point estimate and interval estimate of the population mean with confidence interval of 99%.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:4. A teacher noted that the mean scores of a random sample of 15 grade 8
students who had taken a special test was 80.50. If s=3.1, and the sample size is
taken from an approximately normally distributed population, find the point
estimate and interval estimate of the population mean with confidence interval
of 99%.
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