Good credit: The Fair Isaac Corporation (FICO) credit score is used by banks and other lenders to determine whether someone is a good credit risk. Scores range from 300 to 850, with a score of 720 or more indicating that a person is a very good credit risk. An economist wants to determine whether the mean score is lower than the cutoff of 720. She finds that a random sample of 70 people had a mean FICO score of 705 with a stendard deviation of 83. Can the economist conclude that the mean FICO score is less than 720 Use the a0.05 level of significance and the Pevalue method with the T1-84 Plus calculator Part: 0/4 Part 1 of 4 State the appropriate null and alternate hypotheses. D>O H: This hypothesis test is a (Choose one) test. left-tailed rinhtetaild
Good credit: The Fair Isaac Corporation (FICO) credit score is used by banks and other lenders to determine whether someone is a good credit risk. Scores range from 300 to 850, with a score of 720 or more indicating that a person is a very good credit risk. An economist wants to determine whether the mean score is lower than the cutoff of 720. She finds that a random sample of 70 people had a mean FICO score of 705 with a stendard deviation of 83. Can the economist conclude that the mean FICO score is less than 720 Use the a0.05 level of significance and the Pevalue method with the T1-84 Plus calculator Part: 0/4 Part 1 of 4 State the appropriate null and alternate hypotheses. D>O H: This hypothesis test is a (Choose one) test. left-tailed rinhtetaild
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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Question
see pictures.
1- 2 answers and choose one (right-tailed, left-tailed, two-tailed)
2- P=value
3- Choose one (reject/do not reject)
▼(Choose one) the null hypothesis H0. |
|
4- Choose one (is/is not)
There ▼(Choose one) enough evidence to conclude that the mean FICO score is lower than the cutoff of 720.
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