individuals and found the sample mean credit score to be ! .9 wth a standard deviation .of al LICI the approofiate 1o51 10 dete ine gnHncome individua's have nigher credit score State the nul and alternative hypotheses Ha. (Type integers or decimals. Do not rouad.) Identify the t statistic. to = (Round to two decimal piaces as needed.) %3D Identify the P-value. Pvalue - (Round to thvec decimal places as neoded.) Make a conclusion regarding the hypothesis. the null hypothesis. There V sufticiont evidence 1o claim t at thevai cietit score of hih incume ndividluals is Statcrunch M

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Question
10
A credit score is used by credit agencies (such as mortgage companies and banks) to assess the cred tworthiness of individuas. Values range from 300 to 850, with a credit score over 700 considered to be a quality credit risk
According to a survey, the mean credit score is 703.7. A credit analyst wondered whether hgh-income indviduas (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 41 high-income
individuals and found the sampie mean credit score to be 716.9 with a standard deviation of 31 9 Conduct the appropnate test to determine if h gh-income individuals have higher credit scores at the a=0.05 level of significance.
State the null and alternative hypotheses.
H1: A
(Type integers or decimals. Do not round.)
Identify thet statistic
in = (Round to two decimal piaces as needed.)
Identify the P-value.
Pvalue = (Round to three decimal places as needed.
Make a conclusion regarding the hypothesis
* the null hypothesis. There |
V sufticient evicence lo claim that theai ciecit score of high incume individuals i
Next
Statcrunch
Vi 10:26
Transcribed Image Text:A credit score is used by credit agencies (such as mortgage companies and banks) to assess the cred tworthiness of individuas. Values range from 300 to 850, with a credit score over 700 considered to be a quality credit risk According to a survey, the mean credit score is 703.7. A credit analyst wondered whether hgh-income indviduas (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 41 high-income individuals and found the sampie mean credit score to be 716.9 with a standard deviation of 31 9 Conduct the appropnate test to determine if h gh-income individuals have higher credit scores at the a=0.05 level of significance. State the null and alternative hypotheses. H1: A (Type integers or decimals. Do not round.) Identify thet statistic in = (Round to two decimal piaces as needed.) Identify the P-value. Pvalue = (Round to three decimal places as needed. Make a conclusion regarding the hypothesis * the null hypothesis. There | V sufticient evicence lo claim that theai ciecit score of high incume individuals i Next Statcrunch Vi 10:26
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