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Chicken Delight claims that 88 percent of its orders are delivered within 10 minutes of the time the order is placed. A sample of 80 orders revealed that 66 were delivered within the promised time. At the .10 significance level, can we conclude that less than 88 percent of the orders are delivered in less than 10 minutes?
a. What is the decision rule?
b. Compute the value of the test statistic.
c. What is your decision regarding the null hypothosis?
a study of drinking and driving has found that 40 of all fatal auto accidents are attributed to drunk drivers 2 of all
The central district students failed. Develop a probability tree showing all marginal, conditional and joint probabilities. Develop a joint probability table.
The number of passengers on the Carnival Sensation during one-week cruises in the Caribbean follows the normal distribution.
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post your response to the following questions and participate in the discussion with your fellow students during the
Find the mean number of people saved by the first program. (b) Tversky then offered a different choice. One program has probability 1/2 of saving all 600 and probability 1/2 of losing all 600.
What is the mean number of streaked-shelled snails and what is the standard deviation of the number of streaked-shelled snails?
How many questions must the test contain in order to reduce the standard deviation of Julie's proportion of correct answers to one-fourth its value for an 100-item test?
a food inspector examamining 12 jars of a certain brand of peanut butter obtained the following percentages of
The camera department of a large department store sells three different brands of cameras: Proxima, Yakima, and Tetron. Approximately 60% of the cameras sold are Yakimas with Tetrons accounting for 30% of sales and Proxima the remaining 10%.
Discuss how the statistical application of Pearson r is used for hypothesis testing.l Through application of the Spearman Correlation discuss what type of data the Pearson formula can be used for.
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