The company that produces the scratchandwin tickets for The FilthyRich Instant Win Super Lottery has assured you that exactly 10% of the tickets are winners (that is, they will pay the purchaser at least a dollar). As an inspector for The FilthyRich Instant Win Super Lottery, Inc., you want to be sure this is precisely the case: too high a percentage of winners would result in excessive payoffs; too few winners might bring on charges of consumer fraud and deception. You select a random sample of 200 tickets from a large order of tickets recently delivered by the ticket supplier and find that 28 of the tickets are winners. Set up a two tailed hypothesis test to determine whether this is sufficient sample evidence to reject the supplier’s claim that, overall, the order contains 10% winners. Use a significance level of 1%.
Answer to relevant QuestionsRefer to Exercise 4. State your decision rule by filling in the blanks below: Reject the null hypothesis if the sample proportion is less than ______ or more than _______. In exercise You want to set up a test for the ...To monitor the manufacturing process at Skiltron Industries, quality inspectors perform periodic inspections of the units being produced. As a matter of policy, if the process is producing no more than 6% defective units, it ...Refer to Exercise 59 (Google vs. Bing). Suppose the sample size was 12 rather than 100 for both sample groups. Reconstruct the hypothesis test and report your conclusion. What additional population assumptions did you make ...Allied Applications, a multinational commodities trading company, has recently introduced a new personnel evaluation system. Six months after implementing the system, Allied’s human resources director takes a random sample ...Kentrex, a maker of game consoles, wants to determine whether a proposed new advertising campaign will change game players’ perception of its brand. To conduct the test, Kentrex selected a panel of six game players and ...
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