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!
An Excel Spreadsheet is reprinted below. Interpret the t-test results. Are they statistically significant?
t-Test: Paired Two Sample for Means
Beer Soda
Variable 1 Variable 2
Mean 16.83333333 15.8
Variance 10.35057471 7.820689655
Observations 30 30
Pearson Correlation 0.264451682
Hypothesized Mean Difference 0
df 29
t Stat 1.545410551
P(T<=t) one-tail 0.06654553
t Critical one-tail 1.699127097
P(T<=t) two-tail 0.13309106
t Critical two-tail 2.045230758
Perhaps you have a millionaire, someone making $30,000 and a lot of people spread out all over (and evenly) in between. How would this need to change for median to be a better measure?
A student decided that this is a binomial distribution problem. The student found that the probability of all four engines failing is 4.1E-09. Is that answer correct?
The prior year, the population mean expenditure per household was $632. Discuss the change in holiday season expenditures over the one-year period.
Lotto, a lottery game conducted by the Ohio State Lottery Commission, consisted of selecting six numbers from the 42 numbers 1, 2, ...,41, 42.
Computer science instructor, 3 statistics instructors, and 4 science instructors. If an instructor is selected, find the probability of getting a science instructor or math instructor.
The software manager estimates a value completed of $81,000. What are the cost and schedule variances and CSI. Estimate the time variance.
Also include information about the number of participants you would assess and how you would go about estimating effect size and statistical power (when relevant).
Use normal approximation to determine probability that x = 2. Illustrate all work.
We want to estimate the population mean within 5, with a 99% confidence level. The population std dev is estimated to be 15. How large is the required sample size?
You wish to evaluate the proportion of customers who are satisfied with their supermarket at level of confidence of .92 and in .025 of true value. How large of sample is required?
Regression and Correlation are two of the most often used and abused tools in research. People are quick to jump to conclusions that if a relationship exists between two variables, then one must cause (causation) the other. There are many reasons ..
Management of the restaurant is concerned with the time a patron must wait before being seated for dinner. Explain why the times are a population? Find the mean and median of the times.
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