Answered step by step
Verified Expert Solution
Question
1 Approved Answer
NURS 6208 FINAL PROJECT AND GUIDELINES The project must be typewritten, double spaced and very limited in length (maximum 12 pages). Uses APA rules appropriately,
NURS 6208 FINAL PROJECT AND GUIDELINES The project must be typewritten, double spaced and very limited in length (maximum 12 pages). Uses APA rules appropriately, including text and tables. Part I A NP researcher randomly sampled 100 women aged 50-65 years and measured their minutes of exercise in the past week, BMI, and depression. Depression was measured using a Likert type scale consisting of 20 items. The summation score ranged from 20 to 100 and the higher the score, the higher the level of depression. The correlation coefficients (Pearson's rs) are summarized in the following table. For the analyses, statistical significant level was set at =0.05. Table 1: correlation among minutes of exercise, BMI and depression Exercise in past week (minutes) BMI -0.20 Depression score -0.30 (P<0.05) BMI 0.21 1. Write a research and null hypotheses regarding the relationship between exercise and depression. H0- Depression score has no effect on bmi. H1- As the depression score increases, so will bmi. 2. Based on the test statistics in table 1, what is you conclusion regarding your research hypothesis? (Hint: discuss both the magnitude and direction of the relationship). 3. What proportion of variance is shared by minutes of exercise and depression among women 50-65 years of age?0.30^2=0.09. About 9% of of the variability og minutes of exercise is shared with depression. 4. For the relationship between minutes of exercise and BMI, what was the estimated power of the statistical test? (Using the power table on page 202, table 9.1, Polit 2010). What was the risk that a type II error was committed? The correlation is -0.20, and the sample size is 100. Using the table 0.20, 100 falls between 0.50 (96) and 0.60 (122). 5. If -0.20 is a good estimation of population correction, what sample size would be needed to achieve power of 0.80 at =0.05? A sample size of 194 would be needed for a power of 0.80. PART II. Using the \"N6208 Final Project Data\
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started