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1) The participants in a television quiz show are picked from a large pool of applicants with approximately equal numbers of men and women. Among the last 12 participants there have been only 2 women. If participants are picked randomly, what is the probability of getting 2 or fewer women when 12 people are picked?
2) Find the indicated binomial probability. Round to five decimal places when necessary.
In a certain college, 20% of the physics majors belong to ethnic minorities. If 10 students are selected at random from the physics majors, what is the probability that exactly 6 belong to an ethnic minority?
a student wanted to construct a 95 confidence interval for the mean age of students in her statistics class. she
Angry women, sad men. What are the relationships among the portrayal of anger or sadness, sex, and the degree of status conferred? Sixty-eight subjects were randomly assigned to view a videotaped interview in which either a male or a female profes..
Refer to the previous two exercises. PROC GENMOD in SAS reports the maximized log likelihood as 3475.19 for the model of mutual independence (df = 11), 3538.05 for the model of homogeneous association (df = 5), and 3539.58 for the model containing..
The manager of a convenience store tracked total sales during a small sample of eight recent daytime shifts (an eight-hour period of the day). The total sales during these periods were as follows:
Provide an explanation for why profits might not be a good indicator for deadweight loss. What about if profits were persistently positive in an industry?
If a person were to guess a number from 1-10, the chance of guessing a 4 would be 0.1. If 5 people were asked to guess a number from 1-10, the chance of guessing a 4 would be 0.5. The chance of 2 people guessing a 4 would be (0.1)(01.)=(0.01), correc..
suppose alice flips three fair coins and let x be the number of heads showing. suppose barbara flips five fair coins
Find the sample mean and find the sample standard deviation - construct a confidence interval for the true population mean for body temperatures of healthy adults.
a. a furniture manufacturer produces sofas. to improve their production process they make a study of the sources of
A package of frozen vegetables has a label that says "contents 32 oz." The company that produces these packages knows that the weights are normally distributed with mean 32 oz. and has a standard deviation of 2 oz.
With a z score of 1.5, what percentage often scores are above 52 and what percentage of the scores are above 60?
The director for training at a company that manufactures electronic equipment is interested in determining whether different training methods have an effect on the productivity of assembly line employees.
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