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!
Consider the following hypothesis test:
H0: p = .20
Ha: p .20
A sample of 400 provided a sample proportion p-bar = .175.
a. Compute the value of the test statistic (to 2 decimals).
b. What is the p-value (to 4 decimals)?
c. Using = .05, can you conclude that the population proportion is not equal to .20?
Answer the next three questions using the critical value approach.
d. Using = .05, what is the critical value for the test statistic? (+ or -)
e. State the rejection rule: Reject H0 if z is the lower critical value or the upper critical value.
f. Using = .05, can you conclude that the population proportion is not equal to .20?
Below are the sample times in minutes. At the .05 significance level, can we conclude that there is a difference in their mean times?
Use exponential smoothing to develop simple, trend (Holt's), and seasonal models (both simple and trend) for forecasting the quarterly revenue from 1-year batteries.
what will be the standard deviation of the share price if it is assumed that there is a 95% probability that the value will be at least 64?
What does this data tell us by itself before we do anything with it such as doing hypothesis testing or comparing it to other data? How can this be used by the M&M company?
Using the probabilities above what is the expected size of family you draw?
Probability of selecting a graduating college who had given blood that percent of the time. What is the mean number of times a person gave blood based on this poll?
The following show the hours of sleep on weeknights for a sample of individuals age 49 and younger and for a sample of individuals age 50 and older.
At.01 significance level, is there relationship between job pressure and age?
Suppose that January sales for the fourth year turn out to be $295,000. What was your forecast error? If this is a large error, Karen might be puzzled about the difference between your forecast and actual sales value.
How many degrees of freedom should the researcher use in her t-test critical value assuming that the variances are equal?
It is found that among a random sample of 130 of the school's students, 32% of them plan to go into general practice. Find the P-value for a test of the school's claim.
Fix-It Copiers advertises mean time of 100 minutes for office calls with standard deviation of 25 minutes. What percentages of calls are completed?
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