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The probability for a passenger not showing up is 5%. For this reason, AirCanada sells 205 tickets for a 200-seat airplane at $300cdn each. If the 201th passenger shows up, she will be refunded 300 plus a $500 compensation. The same for the 202nd and so on. AirCanada pockets all money from seat-sale if 200 or fewerpassengers show up.
Let X be net income of the AirCanada from the above described random experiment. Compute the probability function of X.
In-Home stability ratings of children and teenagers age 4 to 14 years who have been diagnosed with ADHD and who are being treated with neurotherapy differs from in-home stability ratings of children and teenagers age 4 to 14 years who have been di..
Student received the following grades last semester. Find the student's semester grade point average. Course Credits Grade/Points Statistics 4 A / 4.0.
Consider the following hypothesis test What is the value of the test statistic? What is the p-value? With a=.05, what is your conclusion, reject or accept?
Write a correct null and alternative hypothesis for testing the claim that the mean life of a battery for a cell phone is at least 115 hours.
For the samples summarized below, test the hypothesis that the two variances are equal, at α = 0.05
Given the standardized normal distribution (with a mean of 0 and a standard deviation of 1, as in Table E.2), what is the probability that:
You are running a chi-squared test. You have 2 groups with 3 characteristics each, what would your critical value be with an alpha of .025?
You can allow the cup to overfill 4% of the time. What amount should you set as the mean amount of coffee to be dispensed?
Eagle Outfitters is a chain of stores specializing in outdoor apparel and camping gear. It is considering a promotion that involves mailing discount coupons to all its credit card customers.
A property of concern for any food company that uses a high-speed carton-filling machine to package juice is the weight of the food product in the individual cartons.
Using the Wilcoxon Signed-Ranks Test. Paired sample data and use the Wilcoxon signed-ranks test to test the claim that the matched pairs have differences that come from a population with a median equal to zero.
4th graders in the US take a standardized test for math. The national average score is 237. Did your state, as represented by your students, out perform the national average using a statistically significant measure?
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