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In the following situations, decide whether you would use a personal interview, observation, mailed questionnaire or telephone interview. Give your reasons.
a) A survey of the residents of a new subdivision on why they happened to select that area in which to live. You also wish to secure some information about what they like and do not like about life in the subdivision.
b) A poll of students at Metro University on their preferences among three candidates who are running for president of the students' union.
c) A survey of 108 wholesale grocery companies, scattered throughout a country, on their personnel management policies.
d) A survey of financial officers of the Fortune 500 Corporations to learn their predictions for the economic outlook in their industries in the next year.
How do these two students stand relative to their own classes? And, hence, which student performed better? Explain your answer
Determine the probability distribution associated with these data.
in general why do studies that compare an experimental treatment with an active control necessitate large sample
an article states that false-positives in polygraph tests i.e. tests in which an individual fails even though he or she
the machine that fills bottles is fairly precise. the distribution of the number of ounces of water in the bottles is
College Athletics: Graduation Rate. Women Athletes at the University of Colorado Boulder have a long term graduation rate of 67%. Over the past several years, a random sample of 38 women athletes at the school showed that 21 eventually graduated.
There are 400 employes and 100 of them smoke. There are 250 males working for the company and 75 of them smoke. What is probability of an emloye selected random?
Find the margin of error for a 89% confidence interval for the true mean cost of textbooks of U of M students in one semester.
Scientists have predicted that an increase in sea level is one of the likely consequences of climate change associated with the enhanced greenhouse effect
I want it to be analysed with descriptive statistics, means/medians of variables and chi-square analysis. Interpretations of the results, their links or interesting points among the results must be explain clearly.
assume that you plan to use a significance level of ? 0.05 to test the claim that p1 p2 use the given sample sizes
Define research question and response Take a sample of adolescents without acne Double-blind randomized controlled trial.
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