A researcher claims that the number of car accidents by season is uniformly distributed. To test...

 

Transcribed Image Text:

A researcher claims that the number of car accidents by season is uniformly distributed. To test this claim, you randomly select 200 accident from a recent year and record the season when each happened. The table shows the results. Test the researcher claim at a = 0.05. Circle the correct answers below. (20 points) Frequency, f 46 54 52 48 Season Spring Summer Fall Winter A. The expected frequencies are 60 70 30 60 60 50 50 a. b. C. d. 60 70 60 50 40 30 60 50 40 B. The calculated Chi-Square value equals a. 0.8 b. 1.8 c. 2.8 C. The number of degrees of freedom is a. 2 b. 5 C. 4 D. The tabulated Chi-Square value equals a. 8.175 b. 7.815 c. 9.348 d. 1.2 d. d. 8.349 E. Decision: a. Accept the null hypothesis and conclude that the distribution is uniform b. Accept the alternative hypothesis and conclude that the distribution is not uniform c. Reject the null hypothesis and conclude that the distribution is not uniform d. Reject the null hypothesis and conclude that the distribution is uniform A researcher claims that the number of car accidents by season is uniformly distributed. To test this claim, you randomly select 200 accident from a recent year and record the season when each happened. The table shows the results. Test the researcher claim at a = 0.05. Circle the correct answers below. (20 points) Frequency, f 46 54 52 48 Season Spring Summer Fall Winter A. The expected frequencies are 60 70 30 60 60 50 50 a. b. C. d. 60 70 60 50 40 30 60 50 40 B. The calculated Chi-Square value equals a. 0.8 b. 1.8 c. 2.8 C. The number of degrees of freedom is a. 2 b. 5 C. 4 D. The tabulated Chi-Square value equals a. 8.175 b. 7.815 c. 9.348 d. 1.2 d. d. 8.349 E. Decision: a. Accept the null hypothesis and conclude that the distribution is uniform b. Accept the alternative hypothesis and conclude that the distribution is not uniform c. Reject the null hypothesis and conclude that the distribution is not uniform d. Reject the null hypothesis and conclude that the distribution is uniform

Answer rating: 100% (QA)

n200 frequency f x 0 E Spring 46 4650 032 Summer 54 50 Fall 54... View the full answer