Benign prostatic hyperplasia is a non-cancerous enlargement of the prostate gland that adversely affectsthe quality of life of millions of men. A study of a minimally invasive procedure for the treatment of thiscondition looked at pretreatment Quality of Life (QOL Base) and Quality of Life (QOL 3Mo) after 3months on treatment. Quality of Life was rated using an ordinal scale of 0 to 6, where 0 is "Delighted"and 6 is "Terrible"Create a "Delta" column depicting the Difference between the Base and 3-month ratingsFind the Mean of the Differences, Standard Deviation and Standard Error for the Delta valuesIs there a Significant Difference in Quality of Life 3 months after treatment?Find the tsat value and the corresponding p-value boundaries using Table C

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Answered: Benign prostatic hyperplasia is a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A researcher reports an F-ratio with dfbetweenbetween = 2 and dfwithinwithin = 30 from an independent-measures ANOVA. How many treatment conditions were compared in the experiment? 2 3 11 30 How many subjects participated in the experiment? 32 30 33 11
A doctor wants to estimate the mean HDL cholesterol of all 20- to 29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 4 points with 99% confidence assuming s=16.4 based on earlier studies? Suppose the doctor would be content with 90% confidence. How does the decrease in confidence affect the sample size required? LOADING... Click the icon to view a partial table of critical values. A 99% confidence level requires nothing subjects. (Round up to the nearest subject.) A 90% confidence level requires nothing subjects. (Round up to the nearest subject.) How does the decrease in confidence affect the sample size required? A. Decreasing the confidence level decreases the sample size needed. B. Decreasing the confidence level increases the sample size needed. C. The sample size is the same for all levels of confidence.
A sport psychologist wanted to test the extent to which daily intake of fat in grams, and amount of exercise (in minutes) can predict health m=(measured using a Body mass index {BMI} scale in which higher scores indicate poorer health. Using the da1ta below: Fat (grams) . Exercise (minutes). Health (BMI) 8. 34. 32 11. 10. 34 5. 50. 23 9. 15. 33 8. 35. 28 5. 40. 27 6. 20. 25 4 . 60. 22 -the psychologist concluded exercise did not provide any additional information because a.) R2 = .923 b.) Adjusted R2 =.853 c.) B= -.017 d.) F change = .045;…
Iq and lead exposure. A sample of subjects with low lead levels in their blood was taken and another random sample was taken with high levels of lead in their blood. Use a 0.05 significant level to test claim that iq score of people p le w low lead levels is higher than the mean iq score of people w higher lead levels. Use p value approach LLL N =78 SAMPLE MEAN=92.88 S=15.34 HLL N=21 SM= 86.90 S=8.99
A study asked respondents, "If ever married, how old were you when you first married?" The results are summarized in the technology excerpt that follows. Complete parts (a) through (d) below. One-Sample T: AGEWED Mean Variable StDev SE Mean 99.0% CI AGEWED 26140 23.740 4.668 0.029 (23.666, 23.814) Click the icon to view the table of critical t-values. (a) Use the summary to determine the point estimate of the population mean and margin of error for the confidence interval. x = 23.740 (Type an integer or a decimal. Do not round.) E=0.7437 (Type an integer or a decimal. Do not round.) (b) Interpret the confidence interval.
A sample of N = 9 individuals participates in a repeated measures study that produces a sample mean difference of X = 4.25 with SS = 128 for the difference scores. Is this mean difference large enough to be considered a real positive effect?
A doctor wants to estimate the mean HDL cholesterol of all 20- to 29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 2 points with 99% confidence assuming s=13.9 based on earlier studies? Suppose the doctor would be content with 90% confidence. How does the decrease in confidence affect the sample size required? LOADING... Click the icon to view a partial table of critical values. Question content area bottom Part 1 A 99% confidence level requires enter your response here subjects. (Round up to the nearest subject.) Part 2 A 90% confidence level requires enter your response here subjects. (Round up to the nearest subject.) Part 3 How does the decrease in confidence affect the sample size required?
You want to compare differences in prior arrests across ethnicity in your study, you measured ethnicity as white =0 black =1 hispanic=2, and other =3. Prior arrests was recorded as the number of prior arrests. which test would you perform to see if arrests differ across diffrent ethnic categories? A. ANOVA B. T-test
A researcher believes that low BMI levels are indicators of eating disorders. He collects BMI of a sample of young adults identified as at risk for eating disorfers to see if their mean BMI is significantly below 18.5 What test would you use and why? (z test, independent t test, single sample t test, paired samples)
What is the purpose of determining a measure of central tendancy?
options for first to blanks : 1- between 0.05 and 0.20 /2- greater than 0.20 / 3- less than 0.2 options for last blank : 1- handrubbing with alcohol / 2- handwashing with soap
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?

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