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!
Study the following Minitab output from a regression analysis to predict y from x.
a. What is the equation of the regression model?
b. What is the meaning of the coefficient of x?
c. What is the result of the test of the slope of the regression model? Let α = .10.Why is the t ratio negative?
d. Comment on r2 and the standard error of the estimate.
e. Comment on the relationship of the F value to the t ratio for x.
f. The correlation coefficient for these two variables is -.7918. Is this result surprising to you? Why or why not?
Regression Analysis: Y versus X
The regression equation is
Y = 67.2 - 0.0565 X
Predictor
Coef
SE Coef
T
p
Constant
67.231
5.046
13.32
0.000
X
-0.05650
0.01027
- 5.50
S = 10.32
R-Sq = 62.7%
R-Sq(adj) = 60.6%
Analysis of Variance
Source
DF
SS
MS
F
P
Regression
1
3222.9
30.25
Residual Error
18
1918.0
106.6
Total
19
5141.0
Assume 85% of passengers show up, 15% will not. Airline booked 11 people for 10 seats.
Credit card holders follows a normal distribution with unknown mean and known standard deviation of $90. what is the 99% confidence interval for the mean?
Normal distribution with average 500 and SD 100. A college wants their students to be in the top 12.5% for verbal aptitude. What minimum qualifying score should they set?
State whether the null hypothesis should be rejected on the basis - Write down the hypothesis
An official of the Iowa department of Highways wants to compare the useful life, in months, of two brands of paint used for striping roads. The mean number of months Cooper Paint lasted was 36.2
what are the confidence limits for the proportion that plan to vote for the Democratic incumbent?
Suppose we drew a histogram of these 18 death rates using class intervals 1 — 1.9, 2 — 2.9, 3 — 3.9, 4 — 4.9 and 5 — 5.9. Using the histogram, we would
identify the sample space of the probability experiment and determine the number of outcomes in the event. draw a tree
If W denotes the total number of spaces one moves under these special conditions, find the mean and standard deviation of W.
Looking at the data, the manufacturer is incorrect in its label claim. Perform hypothesis testing to prove or disprove it. Is the manufacturer correct in its label claim? Explain.
An auditor for Health Maintenance Services of Georgia reports 40% of policyholders 55 years of older submit a claim during the year. Fifteen policyholders are randomly selected for company records. How many of the policyholders would you expect to ha..
Researchers at a pharmaceutical company have found that the effective time duration of a safe dosage of a pain relief drug is normally distributed with mean 2 hours and standard deviation 0.3 hour.
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