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The population proportion is .30. What is the probability that a sample proportion will be within .04 of the population proportion for each of the following sample sizes? All answers 4 digits to the right of the decimal. Q. n = 100 Q. n= 200 Q. n= 500 Q. n= 1000
Find the sample mean and sample standard deviation of the amount citizens spend per year. When finding a confidence interval for the true mean spent of ALL citizens, should we use a z-score or a t-score? Why?
What is the probability that none are a commercial success?
would you favor or oppose providing a path to citizenship for illegal immigrants in the U.S if they met certain requirement including a waiting period, paying fines and back taxes, passing criminal background checks and learning English? What is the ..
What is the probability that exactly 5 cars will arrive in a given hour and what is the probability that at least 3 cars arrive in a given hour ?
Testout the significance of the sample correlation also develop regression equation with scatter plot. Calculate chi-square is less than the critical value
Compute the probability that, in a random sample of 500 students, at least 20 lie frequently, assuming the true percentage is 3%.
Which is more likely to occur-more than 60% correct identifications in the sample of 200 or more than 55% correct identifications in a sample of 1,000? Explain.
A recent study, "[b]ased on data from a survey of nearly 1,500 Boston men aged 18 to 35 years...found that 16 percent of the men - about one in six -- said they had abused their partner physically or sexually within the past year.
Random variables x and y have the joint density function. Find the value of the constant a
Hypothesis Testing
If 45% of the residents play poker and garden and 50% of the residents play both shuffleboard and poker, find the probability that a resident plays poker, given that they garden (that is, find P(poker | garden)
A company producing a standard line and a deluxe line of dishwasher has the following time requirements (in minutes) in departments where either model can be processed
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