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!
1. Research would like to analyze effects of humidity on eating behavior. It is known that laboratory rats normally eat average of µ = 21 grams of food each day. Research selects the random sample of n = 16 rats and places them in controlled atmosphere room in which relative humidity is maintained at 90%. Daily food consumption scores for rats are as follows:
14, 18, 21, 15, 18, 18, 21, 1816, 20, 17, 19, 20, 17, 17, 19
a. Can researcher conclude that humidity has significant effect on eating behavior? Use two-tail test with α = .05.
b. Calculate estimated Cohen's d and r2 to measure size of treatment effect.
Explain the general process and the steps included in conducting a hypothesis test? What is the difference between parametric and nonparametric hypothesis testing?
The owner was interested in the mean time required to service this model, and decided not to carry the model if the mean repair time appeared to be more than 40 minutes.
Why is a normal distribution called "normal"? Investigate the answer to this question on the internet and share the answer in your own words. Be sure to cite your sources.
A quality control engineer selects a part to be tested. The part is then declared acceptable, repairable, or scrapped. Then another part is tested. List all the possible outcomed of this experiment.
Using one proportion z test to find whether or not to support the claim - There is little evidence to reject H 0 , therefore they conclude the tvs are 20 pounds on average.
A sample of 20 is taken, resulting in a mean of 16.45 and standard deviation of 3.59. Assume that x is normally distributed and used alpha of 0.5 to test hypotheses.
The IQ scores of 30 children from under-privileged households, were measured before and a year after, a program of nutritional supplementation was instigated at a primary school.
Determine and plot the probability mass function and probability distribution function of the contract award amount (in millions of dollars).
The men took an average of 20.5 hours per year of personal time with a standard deviation of 2.75 hours. What is the pooled estimate of the variance? Round to three decimal places.
Given a p-cap of 0.16, n = 100, construct a Confidence Interval of 95%. What does the Range created mean? What happends if n changes to 10? What does the new Range mean?
Explain what a Chi-Squared Test is used for and give an example how you could possibly use this test. What is an ANOVA test? Create an example where this test could be used.
A retail grocer has decided to market organic "health foods" and will purchase a new line of products from each of two suppliers. Unknown to the grocer
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