The wait time at a drive-through fast-food restaurant has a standard deviation of 18.0 seconds. Use the following data, which has come from a population that is normally distributed, to decide whether the evidence suggests the standard deviation of wait time is less than 18.0 seconds, using an α=0.05 level of significance. 108.5, 80.4, 67.4, 95.5, 58.0, 86.5, 75.9, 70.9, 65.1, 72.0 2A) State the appropriate hypothesis to test & confirm any necessary checks to perform the testing. 2B) Calculate the standard deviation of the data.
The wait time at a drive-through fast-food restaurant has a standard deviation of 18.0 seconds. Use the following data, which has come from a population that is normally distributed, to decide whether the evidence suggests the standard deviation of wait time is less than 18.0 seconds, using an α=0.05 level of significance. 108.5, 80.4, 67.4, 95.5, 58.0, 86.5, 75.9, 70.9, 65.1, 72.0 2A) State the appropriate hypothesis to test & confirm any necessary checks to perform the testing. 2B) Calculate the standard deviation of the data.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The wait time at a drive-through fast-food restaurant has a standard deviation of 18.0 seconds. Use the following data, which has come from a population that is
108.5, 80.4, 67.4, 95.5, 58.0, 86.5, 75.9, 70.9, 65.1, 72.0
2A) State the appropriate hypothesis to test & confirm any necessary checks to perform the testing.
2B) Calculate the standard deviation of the data.
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