Nancy believes that the average running time of movies is equal to 180 minutes. A sample of 9 movies was taken, and the following running times were obtained. Assume the distribution of the population is normally distributed with the mean of 175 and standard deviation of 10 minutes. ​ State the null and alternative hypotheses.     H0: μ >=180 Ha: μ < 180       H0: μ >180  Ha: μ <= 180       H0: μ = 180  Ha: μ ≠ 180       H0: μ <180 Ha: μ >= 180

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter10: Introduction To Simulation Modeling
Section10.2: Probability Distributions For Input Variables
Problem 2P: Use Excels functions (not @RISK) to generate 1000 random numbers from a normal distribution with...
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Nancy believes that the average running time of movies is equal to 180 minutes. A sample of 9 movies was taken, and the following running times were obtained. Assume the distribution of the population is normally distributed with the mean of 175 and standard deviation of 10 minutes.
State the null and alternative hypotheses.
   
H0: μ >=180
Ha: μ < 180

 

   
H0: μ >180 
Ha: μ <= 180

 

   
H0: μ = 180 
Ha: μ ≠ 180

 

   
H0: μ <180
Ha: μ >= 180
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Cengage,