A mortgage analyst collects data from seven financial institutions on the annual percentage rate (APR) for a 30-year fixed loan. The data file accompanying this exercise show the results (APR in %). Click here for the Excel Data File a. Specify the null and alternative hypotheses to determine if the mean mortgage rate exceeds 4.2%. $H_0$: $\mu \leq 4.2$; versus $H_A$: $\mu > 4.2$ b. Calculate the value of the test statistic. Note: Round final answer to 2 decimal places. Test statistic 2.83
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A mortgage specialist would like to analyze the average mortgage rates for Atlanta, Georgia. He collects data on the annual percentage rates (APR in %) for 30-year fixed loans as shown in the following table. If he is willing to assume that these rates are randomly drawn from a normally distributed population, can he conclude that the mean mortgage rate for the population exceeds 4.30%? Test the hypothesis at a 5% level of significance: (You may find it useful to reference the appropriate table: z table or t table) Financial Institution APR G Squared Financial 4.490% Best Possible Mortgage 4.475 Hersch Financial Group 4.410 Total Mortgages Services 4.230 Wells Fargo 4.885 Quicken Loans 4.350 Amerisave 4.520 Source: MSN Money.com; data retrieved October 1, 2010. Click here for the Excel Data File a. Select the null and the alternative hypotheses. Η0: μ ≤ 4.30; ΗA: μ > 4.30 b. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Test statistic c. Find the p-value. 0.025 ≤ p-value < 0.05
Adi S.
A mortgage specialist would like to analyze the average mortgage rates for Atlanta, Georgia. He collects data on the annual percentage rates (APR in %) for 30-year fixed loans as shown in the following table. If he is willing to assume that these rates are randomly drawn from a normally distributed population, can he conclude that the mean mortgage rate for the population exceeds 4.35%? Test the hypothesis at a 5% level of significance. (You may find it useful to reference the appropriate table: z table or t table) Financial Institution APR G Squared Financial 4.865% Best Possible Mortgage 4.115 Hersch Financial Group 4.555 Total Mortgages Services 4.525 Wells Fargo 4.645 Quicken Loans 4.550 Amerisave 4.850 Source: MSN Money.com; data retrieved October 1, 2010. Click here for the Excel Data File a. Select the null and the alternative hypotheses. H0: μ ≥ 4.35; HA: μ < 4.35 H0: μ ≤ 4.35; HA: μ > 4.35 H0: μ = 4.35; HA: μ ≠ 4.35 b. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Test statistic
Sri K.
A mortgage specialist would like to analyze the average mortgage rates for Atlanta, Georgia. He collects data on the annual percentage rates (APR in %) for 30-year fixed loans as shown in the following table. If he is willing to assume that these rates are randomly drawn from a normally distributed population, can he conclude that the mean mortgage rate for the population exceeds 4.35%? Test the hypothesis at a 5% level of significance. (You may find it useful to reference the appropriate table: z table or t table) Financial Institution APR G Squared Financial 4.400 % Best Possible Mortgage 4.845 Hersch Financial Group 4.220 Total Mortgages Services 4.735 Wells Fargo 4.635 Quicken Loans 4.240 Amerisave 4.770 . Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.)
Madhur L.
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