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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.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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.
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