A car dealer suspects that the weather of the day of the test drive has an effect on the purchasing behavior. The car dealer recorded the observations in a cross-tab. Sunny Cloudy Rainy Total Purchase Made 6. 4 Purchase NOT Made 4 Total Using a Chi-squared test, test the null hypothesis that weather and purchasing behavior are independent against the alternative that they are dependent.

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Chapter1: Starting With Matlab
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Please answer the question in the picture below with the information provided
Assume that you reject the null hypothesis of no-difference at a=0.05. This means
that if you assume that there is no difference in the population between weather and
purchasing behavior, and the probability of getting a sample that deviates as much
from the expected values as your sample does is less than 5%, you reject the null.
Then, as a statistics expert, you
O Reject the null
Fail to reject the null
O Wouldn't know what to do
Would flip a coin to decide
Transcribed Image Text:Assume that you reject the null hypothesis of no-difference at a=0.05. This means that if you assume that there is no difference in the population between weather and purchasing behavior, and the probability of getting a sample that deviates as much from the expected values as your sample does is less than 5%, you reject the null. Then, as a statistics expert, you O Reject the null Fail to reject the null O Wouldn't know what to do Would flip a coin to decide
Chi-Squared Test
A car dealer suspects that the weather of the day of the test drive has an effect on the
purchasing behavior. The car dealer recorded the observations in a cross-tab.
Sunny Cloudy Rainy Total
Purchase Made
4
Purchase NOT Made
4
Total
Using a Chi-squared test, test the null hypothesis that weather and purchasing
behavior are independent against the alternative that they are dependent.
Transcribed Image Text:Chi-Squared Test A car dealer suspects that the weather of the day of the test drive has an effect on the purchasing behavior. The car dealer recorded the observations in a cross-tab. Sunny Cloudy Rainy Total Purchase Made 4 Purchase NOT Made 4 Total Using a Chi-squared test, test the null hypothesis that weather and purchasing behavior are independent against the alternative that they are dependent.
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