Exploring Pearson's Chi Square Test for Goodness of Fit

What is the null hypothesis in the scenario?

• The owner's distribution is correct.

• The observed data matches the expected data exactly.

• The owner's distribution is incorrect.

• The restaurant is closed on Sundays.

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

What is the significance level set for the hypothesis test?

• 5%

• 15%

• 1%

• 10%

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

What percentage of customers are expected on Wednesday according to the owner's distribution?

• 20%

• 10%

• 15%

• 30%

How is the chi-square statistic calculated?

• Sum of observed data

• Sum of expected data

• Sum of squared differences between observed and expected data divided by expected data

• Sum of squared differences between observed and expected data

What decision is made about the null hypothesis?

• It is rejected without calculation.

• It is accepted without calculation.

• It is rejected because the chi-square statistic is high.

• It is accepted because the chi-square statistic is low.