Toexplain: Test for the null hypothesis H 0 : β 1 = 0 , H 1 : β 1 ≠ 0 .

Question

Want to see the full answer?

Answer 1

Question

Chapter 13.1, Problem 14E

To determine

Toexplain:Test for the null hypothesis H0:β1=0,H1:β1≠0 .

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Suppose that you are given two random variables x and y and you take measurements and obtain x1 = 2.3%, x2 = −7.6%, x3 = 0.1% and y1 = 60, y2 = 120, y3 = 80. Find the line of best fit y = α + βx. Calculate the correlation coefficient r and perform a left-tailed hypothesis test for r with significance level 10%. Based on this test, should we use this line to find the value of y when x = .5%?x y x2 y2 xy 2.3% 60 - 120 7.6% 0.1% 80

An HR manager in a company wants to know if there’s a difference in the amount of timeworkers in different departments spend chatting at the water cooler. She tracks the behaviour for twodepartments (Legal Department and Technical Support) and records the number of minutes spent at thewater cooler for each employee. The data are presented below.Is there a significant difference in time spent at the water cooler between the two departments? Conducta hypothesis test using α = .05. Legal Tech Supportn = 4 n = 8M = 22.2 M = 13.8SS = 164 SS = 76

The data in the table below presents the hourly quantity of production for three lines of production processes over the first 4 days in XYZ Company. Answer the questions based on the Excel Output given in the image. a. State the null and alternative hypothesis for single factor ANOVA. b. State the decision rule (α = 0.05).c. Calculate the test statistic and make a decision.