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!
Chi-Square test for goodness of fit for Poisson distribution.
Banner Mattress and Furniture Company wishes to study the number of credit applications received per day for the last 300 days.
Number of Credit Applications
Frequency (Number of Days)
0
50
1
77
2
81
3
48
4
31
5 or more
13
To interpret, there were 50 days on that no credit applications were received, 77 days on which only one application was received, and so on. Would it be reasonable to conclude that the population distribution is Poisson with a mean of 2.0? Use the .05 significance level. Hint: To find the likely frequencies use the Poisson distribution with a mean of 2.0. Find the probability of exactly one success given a Poisson distribution with a mean of 2.0. Multiply this probability by 300 to find the expected frequency for the number of days in which there was exactly one application. Conclude the expected frequency for the other days in a similar manner.
We desire to test at 0.05 level of significance whether modification increases the life of battery. What is our decision rule? Reject null hypothesis if calculated t is less than 1.96.
Compute the skewness for your data set using Pearson's
How much net profit can John expect (on average) to earn from the store in total over the next five years?
Write down the advantages and disadvantages of using computer software for decision making.
Compute the probability that randomly chosen student with a Master's degree majored in English or mathematics?
How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?
Assume your statistics professor reports test grades as z-scores, and you got a score of 2.20 on the midterm exam. Write down a sentence explaining what that means.
At the .01 significance level, can the manufacturer conclude that the price reduction resulted in an increase in sales?
For each of the following problems, assume that the homogeneity of variance assumption has not been met and that you will need to use the adjusted Welch statistic.
Explain the results plot the original data and the fitted regression equations.
The reason why we finish our calculation by dividing range by 4 is that in most data sets 95% of the data values fall within two standard deviations of the mean.
What is the probability that the sample mean will be greater than M = 510. In symbols, what is p (M>510)?
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