In another species of fish, it can safely be assumed the population standard deviation for mercury readings will not exceed 0.10 ppm. What is the minimal number of fish in a random sample so the probability is 0.95 that the sample mean will fall within 0.02 ppm of the true mean?
In another species of fish, it can safely be assumed the population standard deviation for mercury readings will not exceed 0.10 ppm. What is the minimal number of fish in a random sample so the probability is 0.95 that the sample mean will fall within 0.02 ppm of the true mean?
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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In another species of fish, it can safely be assumed the population standard deviation for mercury readings will not exceed 0.10 ppm. What is the minimal number of fish in a random sample so the probability is 0.95 that the sample
Expert Solution
Step 1
The population standard deviation for mercury readings will not exceed 0.10 ppm, the sample mean will fall within 0.02 ppm of the true mean.
Computation of critical value:
For,
The critical value of z-distribution can be obtained using the excel formula “=NORM.S.INV (0.975)”.
The critical value is 1.96.
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