Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
In a 5-year follow-up of bilateral stimulation of the subthalamic nucleus among 49 patients with advanced Parkinson's disease, investigators assessed changes in symptoms as measured by the Unified Parkinson's Disease Rating Scale (range = 0 to 108, with higher values denoting more symptoms). Assume this measure follows a normal distribution. The mean score at baseline was 55.7. The standard deviation of change from baseline to 5 years was 15.3. 8.175 How much power does this study have to detect a mean difference of 5 units in the symptom scale if a two sided test is used with α = .05? 8.176 What minimum sample size would be needed to detect a mean change of 5 units with 80% power if a two sided test is used with α = .05? 8.177 The above study had no control group. Assuming that the same standard deviation of change would occur among controls and the mean change among controls = 0, how many participants would be necessary to detect a mean difference of 5 units of change between those receiving stimulation and a control group of equal size with 80% power if a two-sided test is used with α = .05? Please follow the book "Fundamentals of biostatistics"
In a standard test for reaction time, female candidates for flight school are found to have times that are normally distributed with a mean of 0.65 seconds and a standard deviation of 0.15 seconds.
What is the probability that there are less than 500 nails in a randomly selected five pound box of nails?
The "x" values for red and brown are the counts of each we found on the Data page. You will need to calculate the weighted p?
USA today conducted a survey asking readers, "What is the most hilarious thing that has ever happened to you en route to or during a business trip? What kind of sampling method is this?
Unnithan, Houser, and Fernhall (2006) were interested in whether playing the game Dance Dance Revolution (DDR) affected the heart rate of overweight and nonoverweight adolescents differently. A group of 22 adolescents, 10 classified as overwei..
Test the hypothesis that more than 60 percent of the U.S. senators (of a total 100 senators) favor the president's economic plan, if a sample of 40 showed that 22 favor the plan (use alpha = .05).
Standard deviation of 23.8 days. What is the 90% confidence interval for the average days worked by employees in all payroll departments?
The lengths of pins produced by a machine follow a normal distribution with mean 2.54 cm and standard derivation 0.04 cm.
Draw a simulation experiment for car agency and simulate using fleet of four rental cars for 10 days.
Describe the difference in the fit provided by the two estimated regression equations.
Determine the probability of choosing the area code at random which ends in the odd number if first digit cannot be 1 or 0?
Airline Travelers often choose which airport to fly from based on flight cost. Cost data (in dollars) for a sample of flights to eight cities from Dayton, Ohio, and Louisville, Kentucky, were collected to help determine which of the two airports was ..
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd