(1) A company manufacturing computer chips finds that 8% of all chips manufactured are defective. Management is concerned that high employee turnover is partially responsible for the high defect rate. To decrease the percentage of defective chips, management implements training for all employees hired within the last year. After training was implemented, a sample of 450 chips had 27 defects. Was the additional training effective in lowering the defect rate? Use a =0.05 (a) What is the parameter we are testing, in words (1 point)? (b) State your null and alternative hypotheses (2 points): (c) What are the mean and sd of the sampling distribution (1 point)? (d) What is the standard score, z (1/2 point)? (e) What is the P-value for this test (1 point)? (f) Do you reject or fail to reject Ho (1/2 point)? Page 1 (9) What is your final conclusion (2 points)? (2) In 2013, the Pew Research Center published a report in which it was claimed that 71% of adults in the United States watch local television news. A researcher believes that significantly fewer than 71% of adults are watching local television news in 2015. To test her theory, she obtains data from a random sample of 1,000 adults, and it is observed that 65% of this sample (650 respondents) watches local television news. Test the researcher's belief using a = 0.01 (a) State your null and alternative hypotheses (2 points): (b) What are the mean and so of the sampling distribution (1 point)? (c) What is the standard score, z (1/2 point)? (d) What is the P-value for this test (1 point)? (e) Do you reject or fail to reject H. (1/2 point)? (f) What is your final conclusion (2 points)