A sample of 113 mortgages approved during the current year showed that 32 were Issued to a single-earner family or Individual. The historical percentage is 24 percent.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 24PFA
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A sample of 113 mortgages approved during the current year showed that 32 were issued to a single-earner family or Individual. The
historical percentage is 24 percent.
At the .05 level of significance in a right-talled test, has the percentage of single-earner or Individual mortgages risen?
(a-1) Hg: TE24 versus H;: n>.24. Choose the right option.
a. Reject H, if Zealc > 1.645
b. Reject He if Zcale
<1.645
O a
(a-2) Calculate the test statistlc. (Round Intermediate calculatlons to 2 decimal places. Round your answer to 4 decimal places.)
Test statistic
Transcribed Image Text:A sample of 113 mortgages approved during the current year showed that 32 were issued to a single-earner family or Individual. The historical percentage is 24 percent. At the .05 level of significance in a right-talled test, has the percentage of single-earner or Individual mortgages risen? (a-1) Hg: TE24 versus H;: n>.24. Choose the right option. a. Reject H, if Zealc > 1.645 b. Reject He if Zcale <1.645 O a (a-2) Calculate the test statistlc. (Round Intermediate calculatlons to 2 decimal places. Round your answer to 4 decimal places.) Test statistic
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