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!
Online consumer spending. The Consumer Behavior Report is designed to provide insight into online shopping trends.9 One recent report asked the question "In the past three months, how has the current state of the economy impacted your money spending on online purchasing?" Here are the results from 3156 online consumers:
Reduced Spending
Gender
No
Yes
Female
586
708
Male
1074
788
(a) What are the proportions of individuals who reduced spending in each gender?
(b) What is the odds ratio for comparing female individuals to male individuals?
(c) Write the logistic regression model for this problem using the log odds of reducing spending as the response variable and an indicator of gender as the explanatory variable.
(d) Software gives the estimated slope b1 = 0.4988 and its standard error SEb1 = 0.0729. Transform this result to the odds scale and compare it with your answer in part (b).
(e) Construct a 95% confidence interval for the odds ratio and write a short conclusion.
If that point were removed from the data, would the correlation become stronger or weaker? Explain.- If that point were removed from the data, would the slope of the regression line increase or decrease? Explain.
1) There are 500 employees in a firm, 45% are female. A sample of 60 employees is selected randomly. a) Determine the standard error of the proportion.
in a recent year deleware had the highest per capita annual income with 51803 . standard deviation 4850 find the mean
The given Pearson r correlation coefficients were obtained:- Describe each correlation and draw graphs depicting the general shape of each relationship.
Final model for the clothing retailer problem. The residual plots below show the residuals for the final model in the clothing retailer problem plotted against Purchase12 and Recency. Do the plots suggest any potential problems with the conditions..
in an article about the cost of health care money magazine reported that a visit to a hospital emergency room for
a random sample of size n is to be drawn from a population with mean 700 and standard deviation 300. what size sample
Vote against a proposed pay increase. 320 would vote FOR while 1280 would vote against the proposal. Construct a 95.44% confidence interval for the proportion voting against the proposal.
Find a 95% confidence interval for the mean amount spent by patients at the pharmacy. Show your calculations and/or explain the process used to obtain the interval.
Five children under twelve are selected at random. The probability that the average number of hours that they spend each week watching television is at least 30 is about?
Suppose the correlation between two variables x and y is due, in part, to the fact that y is responding to changes in some unobserved third variable. What is this due to?
testing equality of two means.an independent testing agency has been contracted to determine whether there is any
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