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Please indicate the sampling design and data collection tool(s) used in the following studies.
A research team wanted to investigate the influences of various individual, social and physical environmental factors on physical activity participation by gender, age and socioeconomic status. They selected 5176 participants in Toronto, Canada by random-digit dialing from household-based telephone exchanges, and asked the respondents to complete a telephone survey. They used the short version of the International Physical Activity Questionnaire to collect information on total physical activity (PA), as well as the respondents' socio-economic status, self-rated health, intention to continue PA, perceived barriers to PA, perceived health benefits of PA, and facility availability for PA.
the results of a mathematics placement exam at two different campuses of mercy college follownbspnbspcampussample
Apply the t-test to determine whether the data indicate a difference between the mean amount spent on books at the two companies. Use a significance level of 0.
Solve the system of equations using substitution, elimination by addition, or augmented matrix methods (your choice). Show work.
A new product has the following profit projections, associated probabilities, and indifference probability:
Obtain the empirical influence function for the mean and sketch its influence curve. What does this influence function tell you about the mean (hint: try x = 5 or x
What is the purpose of a post-hoc test with analysis of variance? What is probabilistic equivalence? Why is it important?
Use a bag of M&M TM candies and perform an examploe Chi-squared analysis based on your random sampling(s). State a hypothesis and a few reasons why it along with your Chi-squared analysis may be different from someone else's findings.
As a part of the editorial a random sample of 260 households showed 170 own pets. Does this data disagree with the Pet Food Dealers Association data? Use a 0.05 level of significance.
Your doctor calls and says that you have tested HIV positive. He is sorry but there is a 99.9% (1- 0.001) chance that you have HIV. Is he correct?
research has shown that 80 of patinets with a particular chronic condition improve as a result of surgery. assuming
What is the probability that both pieces are defect-free?- What is the probability that neither piece is defect-free?
a researcher wonders if there is a difference in perfectionism across individuals who receive different amount of
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