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!
You have been provided with the following regression output. The dependent variable is unit sales of a product, and the independent variable is the dollar value of newspaper advertising for that product. The unit of analysis is weeks; that is, each of the observations in the underlying sample data represents a separate week of sales and newspaper advertising.
Regression Analysis: Sales versus Newspaper
The regression equation is Sales = 6514 + 0.0386 Newspaper
Predictors
Co-eff
SECo-eff
T
P
Constant
6514
1138
5.72
0.000
Newspaper
0.038625
0.005494
7.03
0.00
S = 5630.70 R-Sq = 24.3% R-Sq(adj) = 23.8%
Analysis of Variance
Source
D F
S
M S
F
Regression
1
1567134272
49.43
Residual Error
154
4882532724
31704758
Total
155
6449666996
1. How much of the variability has been explained?
2. Is there a relationship between sales and newspaper advertising? Support your answer?
3. What does the constant coefficient 6514 mean?
Determine the probability that between 5 and 10 minutes will pass between successive occurrences.
With a single-sample t ratio, the null hypothesis states that:
The 95% confidence interval for the mean of the sampling distribution of the mean is about:
Final step to be performed when testing hypothesis of population mean is to?
A random sample of 48 managers of large hotels has mean X‾= 5.91. The null hypothesis for the researcher's test is?
If the variability of the filling machine is reduced to 0.025 ounce, verify that this will lower the required average amount of coffee to 4.050 ounces and yet keep 98 percent of the jars above 4 ounces.
A banks loan officer rates applicants for credit. The ratings are causally distributed with a mean of 200 also a standard deflation of 50.
Is the sample size large enough to construct a valid confidence interval for the proportion of debit cardholders who have used their card in making purchases over the Internet?
Ninety of the sample students are in the Business College, 120 are in the Liberal Arts College, and 90 are in the Education College.
Find the critical t-value that corresponds to 90% confidence. Assume 90 degrees of freedom.
What are the expected value and variance of the following probability distribution?
Find out the value of test statistic utilizing one sample proportion testing. Use the subsequent information for the below questions.
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