Answer in photo

ants were sampled. 8. In a t-distribution, given H.: , , ,

ts were 8. In a t-distnbution Pan A: Find the critical value assu Round to the nearest thousandth Pan B: Find the assuming the are not equal. 9. In a large university with a freshman class of over 5000 students. a simple .CO entering freshmen in 2005 found that 28 finished in the bottom 25% of their high schoot class The standards by which they accept at the university were tightened in 2008 In 2010. an ranoorn sample of 100 entering freshmen found mat 16 finished 'n the 25% of their high school class be the proportion of all entering freshmen in 2005 who graduated in the bottom ot the hgh school class. and let be the progx)rt.on of an entering freshmen in 2010 who graduated in the 25% Of their high school class Part A: In order to determine that the proportion ot freshmen who graduated in the bottom Ot h'gh school class in 2010 has been reduced as a result of the tougher admvssvon standards adopted in 2008, compared to the proportbn in 2005. you run a sqmficance test Wnte the appropnate hypotheses below (Responses a, ( Responses c, z, 2, s, /) pz Part B: You calculate the 2048 whena = 0.05 ( Responses z t standardized test statistic to be (Responses 0203. 9797) and the p-value to be This gives us Responses. sufficient. insuftnt) evidence to reject the null hypothesis We Responses do, do not) have evidence that the proportion who graduated in the bottom 253 Of their class has been reduced.