Question

13. Based on some given data set, the P-val" kr testing 11. μ-75v. 1h : μ<75is found to be 0902. Based on the-ne data w. find P-value for testing Ho:p75 v. HS (a) 0.019 (b) 0.038 (c) 0.076 (d) 0.481 14. Based on a random sample of 21 observations selected from a normal population, the sample standard deviation is s7.2. We test Ho : σ2-30 vs. 111 : σ2 > 30 at the 0.05 level of significance. Find the rejection region and the (a) The rejection region is χ, 10.9 with 20 degrees of freedorn and (b) The rejection region is x2>32.7 with 21 degrees of freedom and (c) The rejection region is χ2 > 31.4 with 20 degrees of freedom and (d) The rejection region is χ2 > 31.4 with 20 degrees of freedom and observed value of the test statistic. the observed value of the test statistic is 4.9 the observed value of the test statistic is 34.56 the observed value of the test statistic is 36.288 the observed value of the test statistic is 34.56 15. For estimating some population proportion p, based on a random sam- 100, an estimate of p is found to be 0.72. Construct a ple of size n 95% confidence interval for p. (a) 0.72+ 0.0739 (b) 0.72+ 0.0880 (c) 0.72 ± 0.0088 (d) 0.72 ±0.0980

Answer 1

13 子5 Ha Val 1さ 15 0. 0 Liynt ed 2 30 30 3.

A lob 06 テ 10 20