This is Statistics. Answer what is required. Provide clean and clear solutions.

9. The average test score of entire school is 78. The random sample of 32 with standard deviation 9. The average test score of the sample is 84. Find the z-value. A. 3.771 B. 3.778 C. 3.877 D. 3. 678 10. What is the test statistic when the population mean is 0.610, the sample mean 0.587, standard deviation is 0.123 and the number of samples is 40? A.-1.17 B. - 1.18 C. - 1.19 D. - 1.20 1 1. The null hypothesis H o: p = 12 will be rejected in favor of the alternative hypothesis H .: p > 12 at the a = 0.05 level, what would be the value of the z test statistic? A. Greater than 1.93 B. Greater than 1.94 C. Greater than 1.96 D. Greater than 2.0 12. A test is conducted with the null hypothesis Ho: p = 10 vs. the alternative hypothesis H .: p