a. Choose the appropriate null and alternative hypotheses. H0: Interest rate received is independent of race.; HA: Interest rate received is dependent on race. H0: Interest rate received is dependent of race.; HA: Interest rate received is independent on race. b-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.) b-2. Find the p-value. p-value < 0.01 0.01 ≤ p-value < 0.025 0.025 ≤ p-value < 0.05 0.05 ≤ p-value < 0.10 p-value ≥ 0.10 c. What is your conclusion?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.2: Representing Data
Problem 22PFA
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A study by the Massachusetts Community & Banking Council found that black people, and, to a lesser extent, Latinx, remain largely unable to borrow money at the same interest rate as whites (The Boston Globe, February 28, 2008). The following contingency table shows representative data for the city of Boston, cross-classified by race and type of interest rate received: (You may find it useful to reference the appropriate table: chi-square table or F table)

  Type of Interest Rate on Loan
Race High Interest Rate Lower Interest Rate
Black 553 480
Latino 265 324
White 491 3,701

At the 5% significance level, do the data indicate that the interest rate received on a loan is dependent on race?


a. Choose the appropriate null and alternative hypotheses.

  • H0: Interest rate received is independent of race.; HA: Interest rate received is dependent on race.
  • H0: Interest rate received is dependent of race.; HA: Interest rate received is independent on race.


b-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.)

b-2. Find the p-value.

  • p-value < 0.01
  • 0.01 ≤ p-value < 0.025
  • 0.025 ≤ p-value < 0.05
  • 0.05 ≤ p-value < 0.10
  • p-value ≥ 0.10

c. What is your conclusion?

  • Reject H0; there is enough evidence to support the claim that interest rate and race are dependent.
  • Reject H0; there is not enough evidence to support the claim that interest rate and race are dependent.
  • Do not reject H0; there is enough evidence to support the claim that interest rate and race are dependent.
  • Do not reject H0; there is not enough evidence to support the claim that interest rate and race are dependent.
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