MGSC 291

The P-Value of a hypothesis test is the probability of seeing a test statistic this extreme or more - Correct Ans-In the direction of the alternative hypothesis if the null is true The interpretation of a hypothesis test result is about the - Correct Ans-Parameter Type 1 Error Rate - Correct Ans-Probability of rejecting the null when the null is true Power - Correct Ans-Probability of rejecting the null when the null is false Type 2 error rate - Correct Ans-Probability of failing to ...

Increasing the sample size will usually yield a _______ confidence interval - Correct Ans-narrower Increasing the confidence level will yield a _____ confidence interval - Correct Ans-wider What does it mean if the R-square for a regression is 0.346 and the adjusted R-square is 0.271? - Correct Ans-There is a weak predictor in the model. Standard error is interpreted with the _____ variable - Correct Ans-response If the p-value for an F test is significant, it means that... - Correct...

What is the first step in processing you data for a time series analysis in R? - make all data factors - make date variable a factor with the factor() function -make date variable be recognized as a date in R with the as.Date() function - Correct Ans-make date variable be recognized as a date in R with the as.Date() function How does R store date variables? -as factors -as characters -as the number of days relative to Jan 1, 1970 - Correct Ans-as the number of days relative to Jan 1, 19...

putting in a dataset - Correct Ans-data<-c(81,85,93,93,99,76,75,84,78,84,81,82,89,81,96,82,74,70,84,86,80,70,131,75,88,102,115,89,82,79,106) length(data) - Correct Ans-tells you how may entries are in your vector sort(data) - Correct Ans-puts data smallest to largest summary(data) - Correct Ans-returns the five number summary and the sample mean mean(data) sd(data) sum(data) - Correct Ans-sample mean sample standard deviation adds all the elements of the vector seq(1,100,1)...

MGSC 291 Walters Exam 1 fully solved rated

MGSC 291 exam 3 questions with correct answers 100%

MGSC 291 - Hendrix - Test 1 with 100% correct answers graded A+