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A representative sample of 50 customers at bagel shop were surveyed and ask if they prefer sandwiches made on plain, everything, or sesame bagels. Each participant could only select their one most favorite bagel type. In that sample, 21 selected plain, 19 selected everything, and 10 selected sesame. Conduct a chi-square goodness-of-fit test to determine if there is evidence that the proportions of people in the population who would choose plain, everything, and sesame bagels are not all equal. Use Minitab Express
A researcher wanted to investigate the prevalence of depression among type II diabetic patients and to examine the relationsh
It all depends on you!" If the $525 is the mean, state what the following figures stand for in terms of the confidence interval around this mean.
A company manufactures a large number of rods. The lengths of the rods are normally distributed with a mean length of 4.0 inches and a standard deviation of .75
Suppose a batter's average (number of this per at bat)is .300 over the season to date. What is the probability that the batter gets one hit in the next.
Then compute the expected number for each interval for a sample of 500. Finally, perform the goodness-of-fit test and summarize your results
Judges rated the sounds for the emotional tone of dominance on a scale of 1 to 7, with 7 being extremely dominant. The surgeons in this study had never been sued or had been sued twice. Analyze the scores and write an interpretation.
During normal business hours on the east coast, calls to the toll-free reservation number of the Nite Time Inn that the numb roy calls per minute can be described by the Poisson distribution.
a glass factory produces windshields for large commercial trucks. assume that the process that produces the windshields
This sample design gives every individual in the population the same chance to be chosen for the sample. Is it an SRS? Explain your answer.
question a multiple-choice test has 6 questions. there are 4 choices for each question. a student who has not
The time it takes to fix an equipment failure is uniformly distributed between 3 and 7.5 hours. What is the probability that a failure takes less than 4.5 hours
How many women must be randomly selected to estimate the mean weight of women in one age group. We want 90% confidence that the sample mean is within 3.7 lb of the population mean.
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