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Submit your answers to the following binomial questions. You may use the appendix tables 5 to answer parts a and b. According to a government study,15% of all children live in a household that has an income below the poverty level. If a random sample of 15 children is selected:
a) What is the probability that 4 or more live in poverty?
b) What is the probability that 3 live in poverty?
c) What is the expected number (mean) that live in poverty
Make a graph to visualize the problem and state, without doing the calculations, whether the p-value of the test
What critical value should the company officials use to determine the rejection region?
assume that there are 400 undergraduates in the college of business. 35 students are taking a data mining class and 300
A particular candidate claims she has the support of at least 60% of the voters in her district. A random sample of 150 voters yields 87 who support her. The candidate wishes to test her claim at the 0.05 level of significance.
according to the behavioral risk factor surveillance system 58 of all americans adhere to a sedentary lifestyle.a. if
Given route measured in terms of passengers carried (range is 0.1 to 1). Regress lfare on dist, passen and concen, and provide the heteroskedasticity-robust standard errors.
You and 100 of your 200 respondents concerned about nutrition. Is this reason to believe that the percent in your area is higher than the national 40%?
About 68% of the students at fairview community college favor a new policy regarding parking on campus. suppose that we are interested in the proportion of 45 students in a math class who favor the policy.
a researcher is interested in whether students who attend private elementary schools do any better on s standard test
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imagine that a student takes a 20-item multiple choice exam. she didnt study so all of her answers are guesses. each
according to u.s. news amp world report data in 1995 tuition costs at indiana university a public university were 2984
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