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The marketing department of Low-Brau, a microbrewery that makes what it considers an excellent light beer, asked 7 volunteers, individually, to taste 3 types of light beer (one of which was the company's brand and the others being competitor brands) and report which one they liked the best. Out of those 7 people, 5 said they liked Low-Brau's light beer the best. The taste test was "blind" in that the volunteers did not know beforehand which of the 3 beers they tasted was Low-Brau's. If there is no difference in the taste of the light beers, what is the chance that 5 out of 7 people would be able to rate Low-Brau's as the best? Hint: This is a binomial distribution problem, and an example of the type of thinking that is required for hypothesis testing, which we'll be going over very soon.
A thorough examination reveals there is nothing wrong with the filling machine. From a statistical standpoint, was there a "type" error made? If yes, which type? Explain.
A coin was flipped twenty times and landed heads fifteen times. Based upon this information, answer the following the question:
you want to compare response rates percents of two regimens. a power of 90 and a two-sided test of size 0.05 are
a researcher wants to know if the amount of calories in a meal from five different restaurants is different. what type
At the 0.05 level of significance, test whether the mean baseline body mass index for the population of middle aged men who develop diabetes is equal to 24.0 kg/m 2 , the mean for the population of men who do not. What is the p-value of the test?
A noted psychic was tested for ESP. The psychic was presented with 400 cards face down and asked to determine if each card was marked with one of four symbols: a star, cross, circle, or square. The psychic was correct in 120 cases. Let p represent..
Four cards are selected, one at a time, from a standard deck of 52 cards. Let x represent the number of aces drawn in a set of 4 cards.
The table shows the results of a survey im which 180 family were asked if they own a home and if they will be purchasing a new vehicle this year.
suppose x is uniform of 0 pi2 and ysinx. find the density function of y. the answer is called the arcsine law because
This assignment involves displaying an understanding of an independent t-test. Based on my hypothetical research question: What do early childhood educators report about their experiences with fathers' involvement in their programs?
Ms. Tina Stevens just purchased a new dress that cost $120. What is the probability she paid cash or check? (Round your answer to 3 decimal places.)
The following data represent glucose blood levels(mg/100ml) after a 12 hour fast for random sample of 70 women: Employ 6 classes and make a frequency distribution table.
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