Construct a normal probability plot

Reference no: EM13157367

Regress Y against X with the following data from a random sample of the observations:

X Y
12 100
4 60
10 96
15 102
6 68
4 70
13 102
11 92
10 95
18 125
20 134
22 133
8 87
20 122
11 101

a) What is the regression equation?
b) What is the 90% confidence interval for the slope
c) Test the null hypothesis "X does not affect Y" at an ? of 1%
d) Test the null hypothesis "the slope is zero" at an ? of 1%
e) Make a point prediction of Y when X=10
f) Assume that the value of X is controllable. What should be the value of X if the desired value for Y is 100
g) Construct a residual plot. Are the residuals random
h) Construct a normal probability plot. Are the residuals normally distributed.

Reference no: EM13157367

Questions Cloud

How many grams of silver chloride will be produced : How many grams of silver chloride will be produced if 216 grams of silver is allowed to react with an unlimited amount of chlorine?

What is the change in internal energy of a system : What is the change in internal energy (in J) of a system that absorbs 0.836 kJ of heat from its surroundings

Mid-size car is normally distributed with a mean : The MPG (Miles per Gallon) for a mid-size car is normally distributed with a mean of 32 and a standard deviation of .8. What is the probability that the MPG for a selected mid-size car would be less than 33.2.

What amount of energy is required : What amount of energy is required to completely ionize 6.2 grams of carbon atoms in the gas phase (C(g)) if the ionization energy of C(g) is 1086 kJ/mole?

Construct a normal probability plot : Assume that the value of X is controllable. What should be the value of X if the desired value for Y is 100. Construct a residual plot. Are the residuals random

Account in order to have funds : Cathy wants to have $28,000 in cash 5 years from now in order to pay for improvements that must be made to her small office at that time. If Cathy finds a savings account that pays annual interest of 4.1% compounded monthly, then how much should s..

What annual rate of return did the team make : What is the bond coupon rate on a $25,000 mortgage bond that has semiannual interest payments of $ 1250 and a 20-year maturity date?

Difference in two treatment conditions using two-tailed test : A researcher conducts an independent measures research study and obtains t=2.070 with df=28. How many individuals participated in the entire research study?

Effective annual rate on the investment : You buy an investment today for $9,000. You sell the investment in 120 days for $9,500. The effective annual rate on this investment is:

User Account

All Pages