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The 2006 General Social Survey asked, "what do you think is the ideal number of children for a family to have?" The 1097 females who responded had a median of 2, mean of 3.16, and a standard deviation of 1.91.
a) What is the point estimate of the population mean?
b) Find the standard error of the sample mean.
c) The 95% confidence interval is (3.05, 3.28). Interpret.
d) Is it plausible that the population mean μ = 2? Explain
At α = 0.05, is the correctness of the prediction different for the two types of cola drinkers?
Construct a 98% prediction interval for the selling price of a 4l- year old house having 4500 square feet, 13 rooms, and an attached garage.
Can you describe in detail the differences in ANOVA and the five-step hypothesis testing method?
Explain the importance of random sampling. What problems/limitations could prevent a truly random sampling and how can they be prevented?
In an experiment in which a die was rolled 188 times it was counted up how many times each face came up. The results are as follows:
Binomial distribution to find out the mean also standard deviation. Variance and standard deviation of a lot of 300 calculators.
Based on your experience using ANOVA and Nonparametric tests, what additional information would you recommend to the key decision maker solve the challenges given in a company that provides software solutions to wide range of clients?
To test whether the significant difference between two proportion test using large sample test.
Given 7 male individuals in a Physical Education course, the number of sit ups each individual can do in a one minute period was recorded:
After polling every 8 th graduate, a major university estimated annual salary of its alumni to be $103,000. What sampling technique was used?
Assume that the amount your town's population grows every year is fixed or constant. Utilize your equation in part b to approximate the population in the year 2030.
A local bank reports that 80 percent of its customers maintain a checking account, 60 percent have a savings account, and 50 percent have both.
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