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An appliance manufacturer claims to have developed a compact microwave oven that consumes an average of no more than 25!] W. From previous studies, it
An appliance manufacturer claims to have developed a compact microwave oven that consumes an average of no more than 25!] W. From previous studies, it was determined that power consumption for microwave ovens is normally distributed with a standard deviation of 15 W. A consumer group is suspicious of the claim and believes it is false. They take a sample of 2D microwave ovens and find that they consume an average of 2513 W. Referring to the problem statement, for a test with a level of significance of 13.135, the critical value would be A political pollster randomly selects a sample of 100 voters each day for 8 successive days and asks how many will vote for the incumbent. The pollster wishes to construct a p chart to see if the percentage favoring the incumbent candidate is too erratic. ITEM Number Favoring TITLE Incumbent Candidate 57 2 57 3 53 4 51 5 55 6 60 56 8 59 Referring to the problem statement, what is the numerical value of the lower control limit for the p chart?A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits. The supervisor proceeds by randomly sampling 5 individuals per hour for a period of 10 hours. The sample mean and range for each hour are listed below. Hour X R 18.4 25 2 16.9 27 3 23.0 30 4 21.2 23 5 21.0 24 6 24.0 25 7 19.3 12 8 15.8 14 9 20.0 13 10 23.0 11 Referring to the problem statement, suppose the supervisor constructs an R chart to see if the variability in collection times is in-control. What are the lower and upper control limits for this R chart?How many Kleenex should the Kimberly Clark Corporation package of tissues contain? Researchers determined that 60 tissues is the average number of tissues used during a cold. Suppose a random sample of 100 Kleenex users yielded the following data on the number of tissues used during a cold: X-bar = 52, s = 22. Using the sample information provided, calculate the value of the test statistic
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