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1. Briefly describe your area of research interest (1-3 sentences is sufficient).2. List 4 variables that you might assess in a research project related to your research area. List one for each type of measurement scale: Nominal, ordinal, interval, and ratio. If you cannot think of a variable for each measurement scale, explain why the task is difficult. 3. Create one alternate hypothesis and its associated null hypothesis related to your research area. 4. Briefly describe whether you think your area of interest is more conducive to experimental or correlational research. What are the costs/benefits of each as it relates to your research area? 5. Reliability vs. Validity. Considering your area of research interest, discuss the importance of reliability and validity. Can you have one without the other? Why or why not? 6. Sample vs. Population. Considering your area of research interest, describe the difference between a sample and population. Why is it important to understand the difference between a sample and population in a statistics course? 7. Measures of Central Tendency. Below is a set of data that represent weight in pounds for a particular sample. Calculate the mean, median and mode. Which measure of central tendency best describes this data and why? You may use Excel, SPSS, some other software program, or a hand calculator for this problem. 110.00117.00120.00118.00104.00100.00107.00115.00115.00115.00114.00100.00117.007. Measures of Central Tendency. Below is a set of data that represent weight in pounds for a particular sample. Calculate the mean, median and mode. Which measure of central tendency best describes this data and why? You may use Excel, SPSS, some other software program, or a hand calculator for this problem. 110.00117.00120.00118.00104.00100.00107.00115.00115.00115.00114.00100.00117.00115.00103.00105.00110.00115.00250.00275.00
Explain the bias and sampling error
Find the probability that 3 or 4 of the batches will be rejected in the next shift and find the expected number and the standard deviation of batches rejected.
What is the decision rule?
1.The following random sample was selected from a normal distribution: 4, 6, 3, 5, 9, 3.It would be useful to draw the normal curve to illustrate the confidence intervala.Construct a 90% confidence interval for the population mean.b.Construct a..
(1 point) According to data from the Tobacco Institute Testing Laboratory, a certain brand of cigarette contains an average of 1.4 milligrams of nicotine. An advocacy group questions this figure, and commissions an independent test to see if the the ..
Respond to your peers or the professor and tell the person whether his answer is correct or incorrect and explain why. Indicate the name of the topic and the name of the slice on the Subject line so it is easier for others to follow. Pleas..
the pdf for 3 parameter frechet distribution is ltbrgtfxa?a x-?-a-1 exp-x-?-a ltbrgtthen how we can prove the cdf for
the following data summarize the results from an independent-measures study comparing three treatment
Umbers and measurements are the language of business. Organizations look at results in many ways: expenses, quality levels, efficiencies, time, costs, etc. What measures does your department keep track of? Are they descriptive or inferential data, an..
Way around B&W plots
Collect a real data set consisting of a sample of at least forty observations
Test the hypothesis that there is not relationship between the proneness to use excessive force score and the force score for officers trained at Academy A.
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