A sample of 100 mortgages approved during the current year showed that 31 were issued to a single-earner family or individual. The historical percentage is 25 percent.

At the .05 level of significance in a right-tailed test, has the percentage of single-earner or individual mortgages risen?

(a-1)H₀: .25 versusH₁:> .25. Choose the right option.

1. RejectH₀ifz_calc> 1.645
2. RejectH₀ifz_calc< 1.645

multiple choice 1

• a
• b

(a-2)Calculate the test statistic.(Round your answer to 4 decimal places.)

Test statistic