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!
Q1) Test effectiveness of a treatment, a sample of n=25 people is selected from normal population with a mean of μ=60. After treatment is administered to individuals in sample, the sample mean is found to be M = 55.
a) If population standard deviation is σ=10, can you conclude that treatment has significant effect? Use two-tailed test with α = 0.05.
b) If population standard deviation is σ=20, can you conclude that treatment has a significant effect? Use two-tailed test with α = 0.05.
c) Calculate Cohen's d to measure effect size for both tests (σ=20 and σ=10).
d) Briefly explain how the standard deviation influences outcome of hypothesis test. How does σ influence measures of effect size?
Using this information, calculate Beta risk (probability of Type II error) if the true population mean really is 77.
Carry out an ANOVA and describe in detail in a BPS-formatted Results section:
Calculate the mean and standard deviation of the following data sets, then produce a five number summary and box plot of data.
Rhode Island Red Chickens the incubation time for Rhode Island Red chicks is normally distributed to find out the number of chicks we expect that will hatch.
Based on these data, determine the 95 percent confidence interval estimate for true population mean?
Let's further suppose that there was good interrater reliability on these frequency counts of behaviours and that they are interval/ratio level of measure, normally distributed, and independent observations.
Describe the difference between sample and a sampling distribution. Your reply must be in complete sentences and you may use sketches to help you.
Given the following data, calculate the EMV for each investment alternative. Which is best based on the EMVs you calculated?
If the probability distribution of X is: Determine the expected value of X? Find out the variance of X?
Use descriptive statistics to explain how parental involvement and interests in child's education can impact on educational attainment measured in terms of their numeracy (v24_7), literacy (v28_7) and creativity skills (v25_7 and v26_7)
Determine out the regression equation. Determine the estimated sales if 40 contacts are made.
How many voters required to be sampled to evaluate the proportion within 0.05 with 95% confidence?
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