Question

Homework Assignment Chapter 12 Saved 2 Exercise 12-11 Algo The quality department at an electronics company has noted that, historically, 93 % of the units of a specific product pass a test operation, 5% fail the test but are able to be repaired, and 2% fail the test and need to be scrapped. Due to recent process improvements, the quality department would like to test if the rates have changed. A recent sample of 500 parts revealed that 478 parts passed the test, 17 parts failed the test but were repairable,, and 5 parts failed the test and were scrapped (You may find it useful to reference the appropriate teble: chi-square table or F table) 10 points eBook a. Choose the appropriate alternative hypothesis for the test O At least one of the ps (-1, 2, 3) differs from its hypothesized value Print O All pi (1,2, 3) values differ from its hypothesized value. Reterences b-1. Compute the value of the test statistic. (Round the intermediate calculetions to at least 4 decimal pleces and final answer to 3 decimal places) Test statistic b-2. Find the pvalue O005 s pvalue < 0.10 O0025 < Dvalue < 0.05 O0.01 s pvalue < 0.025 Opvalue < 0.01 Opvalue 2 0.10 c-1. At the 10 % significance level, what is your conclusion? 2 of 5 < Prev Nexl X Graw e

Answer 1

profos Pons All to ave tame Ha At kst ne Popa-hom differert trom Valu (0) ophion A b) test srtistic X 46brerved -Exprcted) Ex pected tablap observed Epected Ebe sa) leng (Obeer-Exp probability 13 465 O.3639 498 0-93 25 -8 2.56 O05 O-02 10 total 5-42 34 1 X 5-423 P-Valus X-S423 dt- 3-1-2 / option is A 0.05P Value<O10 reject Ho