5. Ho: u=215 Ha u 215 The population is approximately normal. The sample mean is 219.3, the sample standard deviation is 13.12, and the sample size is 22. Use a = 0.05. 6. Ho: μ= 15 Ha: μ* 15 The population is approximately normal. The sample mean is 15.3, the sample standard deviation is 2.5, and the sample size is 12. Use a = 0.05. 7. Ho: = 65 Hau> 65 The sample mean is 63, the sample size is 43, and the standard deviation is 4. Use a = 0.05, 2000, for emislo znemotevog on7 8. Ho: u= 25 Hau<25 The sample mean is 23.75, the sample standard deviation is 4.5, and the sample size is 12. Use = 0.05. notisivet brebossa e bas 1000re 9. Ho: μ= 106.22 Ha: > 106.22 The population follows a normal distribution with standard deviation of 4.08, sample mean of 108.5 and sample size of 17. Use a=0.10. 10. Ho: = 25.5 Ha: > 25.5 The sample mean is 23.8 and the sample size is 42. The population follows a normal distribution with standard deviation 2.27. Use a=0.01.

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