Homework Help is Here – Start Your Trial Now!
Math
Statistics
6. As part of an investigation into motorway accidents in Greater Manchester, it was hypothesised that weather conditions were an important factor. Research revealed that in wet weather the M61, M62 and M63 experienced 32, 272 and 96 accidents. In dry weather, the figures were 32, 281 and 30. i. Formulate null and alternative hypothesis for this test ii. Calculate the chi-squared statistic iii. State the degrees of freedom in this case. iv. Test the chi-square statistic at 1% level and state your conclusions in everyday language.

6. As part of an investigation into motorway accidents in Greater Manchester, it was hypothesised that weather conditions were an important factor. Research revealed that in wet weather the M61, M62 and M63 experienced 32, 272 and 96 accidents. In dry weather, the figures were 32, 281 and 30. i. Formulate null and alternative hypothesis for this test ii. Calculate the chi-squared statistic iii. State the degrees of freedom in this case. iv. Test the chi-square statistic at 1% level and state your conclusions in everyday language.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
See similar textbooks
icon
Related questions
Question
6. As part of an investigation into motorway accidents in Greater Manchester, it was hypothesised that weather conditions were an important factor. Research revealed that in wet weather the M61, M62 and M63 experienced 32, 272 and 96 accidents. In dry weather, the figures were 32, 281 and 30. i. Formulate null and alternative hypothesis for this test ii. Calculate the chi-squared statistic iii. State the degrees of freedom in this case. iv. Test the chi-square statistic at 1% level and state your conclusions in everyday language.
Transcribed Image Text:6. As part of an investigation into motorway accidents in Greater Manchester, it was hypothesised that weather conditions were an important factor. Research revealed that in wet weather the M61, M62 and M63 experienced 32, 272 and 96 accidents. In dry weather, the figures were 32, 281 and 30. i. Formulate null and alternative hypothesis for this test ii. Calculate the chi-squared statistic iii. State the degrees of freedom in this case. iv. Test the chi-square statistic at 1% level and state your conclusions in everyday language.
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS