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) Ho: TTS.25 versus H;: T> .25. Choose the right option. a. Reject H, if zcalc>1.645 b. Reject H, if zcalc < 1.645 (a-2) Calculate the test statistic. (Round your answer to 4 decimal places.) Test statistic 1.386 (a-3) The null hypothesis should be rejected. True Calu
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) Ho: TTS.25 versus H;: T> .25. Choose the right option. a. Reject H, if zcalc>1.645 b. Reject H, if zcalc < 1.645 (a-2) Calculate the test statistic. (Round your answer to 4 decimal places.) Test statistic 1.386 (a-3) The null hypothesis should be rejected. True Calu
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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![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 0.05 level of significance in a right-tailed test, has the percentage of single-earner or individual mortgages risen?
**(a-1)** \( H_0: \pi \leq 0.25 \) versus \( H_1: \pi > 0.25 \). Choose the right option.
- a. Reject \( H_0 \) if \( z_{calc} > 1.645 \)
- b. Reject \( H_0 \) if \( z_{calc} < 1.645 \)
- [ ] a ✅
- [ ] b
**(a-2)** Calculate the test statistic. *(Round your answer to 4 decimal places.)*
- Test statistic: 1.386 ❌
**(a-3)** The null hypothesis should be rejected.
- [ ] True
- [x] False ✅](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2fda3cc1-277f-4107-b275-13a7a72096f2%2F94652e95-d4a2-4dd8-b5a9-6d7e0d2aa671%2Flhbp1r_processed.png&w=3840&q=75)
Transcribed Image Text: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 0.05 level of significance in a right-tailed test, has the percentage of single-earner or individual mortgages risen?
**(a-1)** \( H_0: \pi \leq 0.25 \) versus \( H_1: \pi > 0.25 \). Choose the right option.
- a. Reject \( H_0 \) if \( z_{calc} > 1.645 \)
- b. Reject \( H_0 \) if \( z_{calc} < 1.645 \)
- [ ] a ✅
- [ ] b
**(a-2)** Calculate the test statistic. *(Round your answer to 4 decimal places.)*
- Test statistic: 1.386 ❌
**(a-3)** The null hypothesis should be rejected.
- [ ] True
- [x] False ✅
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