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!
Hypothesis Testing Complete the following hypothesis test. A recent study on Xaniaville University college students suggested that the mean time to complete an undergraduate degree for all students, regardless of their work schedule, was 3.5 years. Based on this study, to increase enrollment, the marketing department at Xaniaville University decided to invest $500,000 in advertising to promote to the community that if you attend Xaniaville, you will be finished in 3.5 years, or less, with your undergraduate degree. You would like to be the future director of the marketing department after graduating. In order to create a good reputation for yourself, you decide to research the fact that the degree can be completed in 3.5 years because you have talked to all your friends and they have informed you that there is no possible way they could complete their degree in that time frame. You chose a random sample of 233 college graduates to conduct your research. Your results revealed the mean time to complete an undergraduate degree was 3.9 years with a standard deviation of 2 years. At the .05 significance level, can we conclude that undergraduate students can complete an undergraduate degree in a mean of 3.5 years, or less? You have taken a statistics class and know that to determine this information you can apply the five-step hypothesis testing procedure. You complete the following to present to the marketing director, George Longstocking: Step 1. The null hypothesis and the alternate hypothesis are: H0: P = 0.5 null hypotheses H1 : P Step 2. The level of significance is: Step 3. The test statistic is: Step 4. The decision rule is: Step 5. The value of the test statistic and decision regarding the hypothesis are: Your conclusion and advice to George are: (be sure to address Type I or II error, whichever applies in this case.) George thinks you are trying to take his job so he does nothing with your advice. You decide to speak to his direct manager. What recommendations would you make to the University VP of Finance who is about to approve a $500,000 expense to move forward with the aforementioned marketing plan?
In a council election, 5 people are running, 3 seats available, and you want two for sure to win,but no caring who the third is. Should you only vote for the two candidates that you want and leave the third ballot blank or should you vote for the two..
Does this sample provide enough evidence to conclude that self-esteem scores for these adolescents are significantly different from those of the general population? Use a two-tailed test with x =.01.
Is the dealer's mean significantly greater than the national average of 30,000 miles for 2-year leased vehicles, using the 10 percent level of significance?
Scientists have predicted that an increase in sea level is one of the likely consequences of climate change associated with the enhanced greenhouse effect
Please explain the difference between confidence interval and significance level and how they interact or "influence" each other.
Calculate the correlation between decorating and Christmas enjoyment - Maximize Wayne's studying effectiveness.
The company can alter the standard deviation. Use a sketch to decide how the company can proceed if they want to reduce this proportion by changing the standard deviation.
A local computer sales office sent the following information about the computer system installation. Identify the critical path by computing the ET, LT, TS and FS values.
What is the probability that the individual is a male - are enjoying shopping for clothing and the gender of the individual statistically independent? Explain.
What is the probability of selecting a family that has either a Visa card or an American Express card and if a family has a MasterCard, what is the probability that it has a Visa card?
Redheads are rumored to have fiery tempers and you think it might affect their grades. Is there any significant difference in grades between blondes, brunettes and redheads?
What is the P-value of the test, assume the standard deviation is 3 years, a 95% confidence interval for the average time
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