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 for correlation coefficient.
The data in the file coffee drink represents the calories and fat( in grams) of 16 =ounce iced coffee drinks at DD and star bucks
Products
calories
fat
DD, iced mocha swirl latte(whole milk
240
8.0
Starbucks coffee frap blended
260
3.5
DD Coffee Coolatta (crème) Starbucks iced coff mocha
350
22.0
Espresso (whole milk and whipped cream) Starbucks Mocha frap blended coff
20.0
(Whipped cream) Starbucks Chocolate brownie
420
16.0
Frap blended coffee (whipped cream) Starbucks chocolate frap
510
Blended crème(whipped cream)
530
19.0
1. Compute and interpret the coefficient of correlation, r
2. At the 0.05 level of significance, is there a significant linear relationship between calories and fat?
In a survey of women in a certain country (ages 20-29) the mean height was 64.5 inches with a standard deviation of 2.75 inches. What height represents the 90th percentile? What height represents the first quartile?
The grade point averages for 10 randomly selected high school students are listed below. Assume the grade point averages are normally distributed.
Define the decision rule. Calculate the value of the test statistic.
A financial adviser is interested in predicting bond yield based on bond terms, i.e., one year, two years, etc. What is the dependent variable?
Using smoothing constant of w = .80, compute the value of exponentially smoothed series in 1983.
Formulate this statement as a multiple regression model (form only, without parameter estimation).
An artifact is discovered at a certain site. If it has 46% of the carbon-14 it originally contained, what is the approximate age of the artifact to the nearest year?
A recent study claimed that 15% of all eighth- grade students are overweight. In a sample of 80 students, 9 were found to be overweight. At a= 0.01, is there enough evidence to reject the claim using critical values?
Develop a forecast for year 6, using two-year moving average and trend analysis. Identify which method is most appropriate for this data set
Identify Ho and Ha for this study, conduct the appropriate analysis, and should Ho be rejected? what should the researcher conclude?
Make a plot of the ratio of the number of boys born per year to the number of girls in the U.S. What do you see? In what year did we see the most total number of births in the U.S.?
Linear correlation (presented in Session 5) and linear regression are closely related statistical concepts.
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