The use of Bluetooth in autos is claimed to have reduced automobile accidents. I

Question

The use of Bluetooth in autos is claimed to have reduced automobile accidents. Is someone who does not used Bluetooth more likely to get involved in an automobile accident? What is the exported frequency for each cell? 2. Step 1- Ho: There is no relationship between Bluetooth use and not being involved in an auto accident H1: There is ___ Step 2 - State the level of significance: Step 3 - State the test statistic: Step 4 - What is the Decision Rule? What is the test statistic s critical value? Step 5 - Perform the calculation and make a decision - Step 6 - Interpret the result -

Explanation / Answer

1) Expected frequencies =(row total)*(coulmn Total)/ Grand total

2) H0: There is no difference between bluetooth use and not being involved on auto accident

H1: There is a difference between bluetooth use and not being involved on auto accident

3) alpha:5%

4) chi square critical value at 1 df= 3.84

5) test statictic:

chi square= 2.523

6) Decision:

Chi square cal < chi square critical valye, we do not reject the H0.

7) Hence There is no difference between bluetooth use and not being involved on auto accident

Oi ei 25 31.5 300 293.5 50 43.5 400 406.5

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