chi-square test

[kaleigh]

Please help me solve this problem!


It is a common belief that more car crashers occur on certain days of the week. A sample of motor vehicle accidents of a recent year in a certain city have been collected and given in the table below. Test the claim at the 5% level of significance that accidents occur with equal frequency on the different days of the week. Use a chi-square test without continuity correction.

day - sunday monday tuesday wednesday thursday friday saturday
observed accidents - 15 21 11 14 18 26 21
expected accidents - ? ? ? ? ? ? ?

1. State the null and alternative hypotheses
- H[sub:2mb26m3y]0[/sub:2mb26m3y] & H[sub:2mb26m3y]1[/sub:2mb26m3y]
2. Fill in the table with the expected frequencies
3. Determine the critical value of the chi-square statistic. Critical x[sup:2mb26m3y]2[/sup:2mb26m3y]=
4.Calculate the chi-square test statistic. x[sup:2mb26m3y]2[/sup:2mb26m3y]=
5. make a decision and write a conclusion.

 

[Deleted member 4993]

Please help me solve this problem!


It is a common belief that more car crashers occur on certain days of the week. A sample of motor vehicle accidents of a recent year in a certain city have been collected and given in the table below. Test the claim at the 5% level of significance that accidents occur with equal frequency on the different days of the week. Use a chi-square test without continuity correction.

day - sunday monday tuesday wednesday thursday friday saturday
observed accidents - 15 21 11 14 18 26 21
expected accidents - ? ? ? ? ? ? ?

1. State the null and alternative hypotheses
- H[sub:18kmtcb1]0[/sub:18kmtcb1] & H[sub:18kmtcb1]1[/sub:18kmtcb1]
2. Fill in the table with the expected frequencies
3. Determine the critical value of the chi-square statistic. Critical x[sup:18kmtcb1]2[/sup:18kmtcb1]=
4.Calculate the chi-square test statistic. x[sup:18kmtcb1]2[/sup:18kmtcb1]=
5. make a decision and write a conclusion.

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