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!
A number of airlines now charge a fee for booking a ticket directly with the airline either in person or by telephone. No fee is charged persons who book travel online. A survey conducted by SITA showed that in 2006, 47% of passengers booked their airline tickets online. In the 2007 this had increased to 49% and in 2008 to 57.6%.
a. Suppose the results are based on surveys of 2500 randomly selected passengers each year. At the .01 level of significance, is there evidence of a difference in the proportion of passengers who book tickets online among the three year groups?
Complete the following:1. State H0.2. State H1.3. State the value of α.4. State the value of the test statistic.5. State the p-value.6. State the decision in terms of H0 and why.7. State the decision in terms of the problem.
b. If appropriate, use the Marascuilo procedure and α = .01 to determine which, if any, year groups are significantly different in the proportion of passengers who book tickets online.
c. Would the results change if samples of size 300 were used? Support your answer with appropriate calculations.
53% of all recorded births are boys if 6 babies born in this hospital are selected at random find the probability that two of the babies selected are boys.
Utilizing form of Regression method which would give you highest performing model to forecast Sales. Utilizing your model forecast the sales
A recent survey by the insurance company showed the following probabilities for the number of bedrooms in each insured home. Find the standard deviation for the distribution.
A medical supplies company buys its supplies in bulk and redistributes them to doctor's offices and clinics. The receive thermometers in lots of 500 from the vendor. They are considering a sampling plan of n=50 and c=1.
A retailer wants to estimate with 99% confidence the number of people who buy at his store. A previous study showed that 15% of those interviewed had shopped at his store.
Doctors nationally believe that 68% of a certain type of operation are successful. In a particular hospital 47 of these operations were observed and 37 of them were successful. At a = 0.05 is this hospital's success rate different from the nationa..
Suppose that the population of heights of male college students is approximately normally distributed with mean m of 68 inches and standard deviation s of 3.75 inches. A random sample of 16 heights is obtained.
The participants in a television quiz show are picked from a large pool of applicants with approximately equal numbers of men and women.
Calculate the probability of a type ii error for the following hypotheses when µ = 37:
The number of passengers on the Carnival Sensation during one-week cruises in the Caribbean follows the normal distribution.
A survey of 608 adults showed that 401 of them approved of the way city government was being run. Find a 99% confidence interval for the true proportion of voters who approve the way city government is being run.
The American Automobile Association checks the prices of gasoline before many holiday weekends. Listed below are the self-service prices for a sample of 15 retail outlets during the May 2003 Memorial Day weekend in the Detroit
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