An simple random sample (SRS) of 100 laborers who use the services of a national temporary employment agency found that in the past year the average number of days worked by these laborers was = 107 days, with standard deviation s = 45 days. Assume the distribution of the number of days worked in the population of laborers using this employment agency is approximately normal, with mean u. Are these data evidence that u has lowered from the value of 120 days of 5 years ago? To determine this, we test the hypotheses Ho : µ = 120 vs Ha : µ < 120 Based on the data, provide the P-value. Round your final answer to 4 decimal places.
An simple random sample (SRS) of 100 laborers who use the services of a national temporary employment agency found that in the past year the average number of days worked by these laborers was = 107 days, with standard deviation s = 45 days. Assume the distribution of the number of days worked in the population of laborers using this employment agency is approximately normal, with mean u. Are these data evidence that u has lowered from the value of 120 days of 5 years ago? To determine this, we test the hypotheses Ho : µ = 120 vs Ha : µ < 120 Based on the data, provide the P-value. Round your final answer to 4 decimal places.
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:An simple random sample (SRS) of 100 laborers who use the services of a national temporary employment
agency found that in the past year the average number of days worked by these laborers was ¤ = 107 days,
with standard deviation s = 45 days. Assume the distribution of the number of days worked in the population
of laborers using this employment agency is approximately normal, with mean u. Are these data evidence that
u has lowered from the value of 120 days of 5 years ago? To determine this, we test the hypotheses
Ho : µ = 120 vs Ha : µ < 120
Based on the data, provide the P-value. Round your final answer to 4 decimal places.
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