A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. 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 700.1. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 45 high-income individuals and found the sample mean credit score to be 713.4 with a standard deviation of 84.9. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the α = 0.05 level of significance.1. **State the null and alternative hypotheses.** $ H_0: \mu $ [Dropdown options for hypothesis indicating whether the null hypothesis equals, is greater than, or less than the mean credit score of the general population] $ H_1: \mu $ [Dropdown options for hypothesis indicating whether the alternative hypothesis does not equal, is greater than, or is less than the mean credit score of the general population] (Type integers or decimals. Do not round.)2. **Identify the t-statistic.** $ t_0 = $ [Input field requiring rounding to two decimal places as needed.]3. **Identify the P-value.** P-value = [Input field requiring rounding to three decimal places as needed.]4. **Make a conclusion regarding the hypothesis.** [Dropdowns for choosing either 'Reject' or 'Do not reject' regarding the null hypothesis] There [Dropdown for choosing either 'is' or 'is not'] sufficient evidence to claim that the mean credit score of high-income individuals is [Dropdown options for hypothesis conclusions such as equal to, not equal to, greater than, or less than the general population].

The summary of the statistics is, The type of test is right tailed test

A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. 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 700.1. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 45 high-income individuals and found the sample mean credit score to be 713.4 with a standard deviation of 84.9. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the a = 0.05 level of significance. State the null and alternative hypotheses. Ho: O (Type integers or decimals. Do not round.) Identify the t-statistic. to (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.) Make a conclusion regarding the hypothesis. the null hypothesis. There V sufficient evidence to claim that the mean credit score of high-income individuals is

A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. 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 700.1. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 45 high-income individuals and found the sample mean credit score to be 713.4 with a standard deviation of 84.9. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the a = 0.05 level of significance. State the null and alternative hypotheses. Ho: O (Type integers or decimals. Do not round.) Identify the t-statistic. to (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.) Make a conclusion regarding the hypothesis. the null hypothesis. There V sufficient evidence to claim that the mean credit score of high-income individuals is

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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