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1. Create a real-life research question or topic of your choosing. This question may be something that you work with in your career, see on a daily basis, come from a hobby, etc. The answers to the question (your data) should be quantitative (numerical).
2. Select a legitimate sampling strategy and collect at least 30 data points using your created question or topic. Discuss the sampling strategy in sufficient detail so that someone else could repeat your data collection without any difficulties or questions.
3. Prepare a histogram of your data.
This distribution is positively skewed. The standard deviation of the population is not known.
95% of breaking strengths will be contained between what two values symmetrically distributed around mean?
In a regression analysis involving 30 observations, the following estimated regression equation was obtained.
The owner of Britten's Egg Farm wants to estimate the mean number of eggs laid per chicken. A sample of 20 chickens shows they laid an average of 22 eggs per month with a standard deviation of 2.03 eggs per month.
What are the two ways of testing a correlation coefficient for significance?
Tom Sevits is the owner of the Appliance Patch. Recently Tom observed a difference in the dollar value of sales between the men and women he employs as sales associates.
If hypothesis test for single population variance is to be conducted by using significance level of to 0.10, a sample size of n = 16, and test is a one-tailed upper-tail test, the critical value is?
Can we conclude that car size is dependent on marital status? YES or NO (circle one)
Multiple choice question based on multiple regression - The coefficient of determination for this model is
Ten students were sampled at random from a student population. Each was asked how many courses he or she was planning on studying in the upcoming year. The following is a list of the reported data values: 1, 2, 2, 3, 4, 5, 5, 5, 5, 6 What is the vari..
This model is fit to the data using the method of least squares using statistical software, and the following parameter estimates and their standard errors are obtained.
Create a 95% confidence interval for population proportion of positive drug tests.
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