According to a city's estimate, people on average arrive 1.5 hours early for domestic flights. The population standard deviation is known to be 0.5 hours. A researcher wanted to check if this is true so he took a random sample of 50 people taking domestic flights and found the mean time to be 2.0 hours early. At the 1% significance level, can you conclude that the amount of time people are early for domestic flights is more than what the city claims. Will you reject or not reject the null hypothesis and what is your conclusion in words? O Reject the null hypothesis; the city's claim is true. O Do not reject the null hypothesis; the city's claim is false and people arrive earlier than the city claims. O Reject the null hypothesis; the city's claim is false and people arrive earlier than the city claims. O Do not reject the null hypothesis; the city's claim is true.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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According to a city's estimate, people on average arrive 1.5 hours early for domestic flights. The population
standard deviation is known to be 0.5 hours. A researcher wanted to check if this is true so he took a random
sample of 50 people taking domestic flights and found the mean time to be 2.0 hours early. At the 1%
significance level, can you conclude that the amount of time people are early for domestic flights is more than
what the city claims. Will you reject or not reject the null hypothesis and what is your conclusion in words?
O Reject the null hypothesis; the city's claim is true.
O Do not reject the null hypothesis; the city's claim is false and people arrive earlier than the city claims.
O Reject the null hypothesis; the city's claim is false and people arrive earlier than the city claims.
O Do not reject the null hypothesis; the city's claim is true.
Transcribed Image Text:According to a city's estimate, people on average arrive 1.5 hours early for domestic flights. The population standard deviation is known to be 0.5 hours. A researcher wanted to check if this is true so he took a random sample of 50 people taking domestic flights and found the mean time to be 2.0 hours early. At the 1% significance level, can you conclude that the amount of time people are early for domestic flights is more than what the city claims. Will you reject or not reject the null hypothesis and what is your conclusion in words? O Reject the null hypothesis; the city's claim is true. O Do not reject the null hypothesis; the city's claim is false and people arrive earlier than the city claims. O Reject the null hypothesis; the city's claim is false and people arrive earlier than the city claims. O Do not reject the null hypothesis; the city's claim is true.
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