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An experiment was performed on a certain metal to determine if the strength is a function of heating time. Results based on 15 metal sheets are given below. Use the simple liner regression model. ?X=30 ?X2=100 ?Y=45 ?Y2=165 ?XY =120 Find the slope and intercept and write the estimated Regression equation. Fine SSE, SST, and SSR. Also find the Coefficient of Determination and interpret it. Find the correlation coefficient.
A recent article in the Denver Post indicated that the mean selling price of the homes in the area is more than $220,000. Can we conclude that the mean selling price in the Denver area is more than $220,000? Use the .01 significance level. What is..
Find the probability that when 200 reservations are accepted, there are more passengers showing up than there are seats available. Is the probability of overbooking small enough so that it does no happen very often.
X is said to be Position distributed with parameter lambda >0 if it has the following pmf: PX(x)= (lambda ^x)*e^(-lambda)/ x! where x = 0, 1, 2... and 0 otherwise.
What is the approximate probability that the average weekly postage expense for the past 52 weeks will exceed the budgeted amount of $ 400?
My question bout How do I use the TINV function within excel to back out the t-statistic for the test? Why did you use the TDIST function? I know ho to use the TINV function, but what does it mean to back out the t-statistic for the test?
telephone numbers at uc davis consist of 7-digit numbers the first 3 of which are 752. it is estimated that about
a researcher conducted an experiment on the effects of a new drug on depression. the researcher had a control group
What is the probability that the cereal would be high calorie? In other words, what is P (high calorie)?
You have 4 jars. In the largest jar you have three balls numbered 1 to 3. Then you have 3 colored jars. Jar 1 has a red ball and two orange balls.
Suppose your data is approximately normally distributed with a mean 25 and standard deviation 15. What is the approximate 97.5th percentile of your data?
The time (in minutes) between telephone calls at an insurance claims office has the exponential probability distribution f(x) = 0.50 e-0.50x for x ≥ 0. What is the mean time between phone calls.
Develop a linear regression model for these data and forecast carpet sales if 30 construction permits for new homes are filed.
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