Chi Square Test

Find the degrees of freedom.

• 4
• 5
• 6
• 7

What are the expected counts of a female who likes Pepsi?

• 10.5
• 11
• 14.5
• 6.3

Tags

CCSS.HSS.MD.A.2

A random sample of traffic tickets given to motorists in a large city is examined.  The tickets are classified according to the race of the driver.  The results are summarized in the table provided.  Assuming H₀ is true, the expected number of Hispanic drivers who would receive a ticket is

• 10.36
• 11
• 11.84
• 12

What are the degrees of freedom for the following χ² test?

• 6

• 2

• 5

• 36

The shape of the Chi-Square distribution is ___.

• Left Skewed

• Right Skewed

• Unimodal & Symmetric

• Bimodal & Symmetric

The chi-square statistics is:

• 
• 
• 
• 
• 

Find the chi-squared calculated value for the table.

• 0.486170447

• 1.442392006

• 1.45

• 2

What must be true about the expected values in a chi square test?

• greater than or equal to 2
• greater than or equal to 5
• greater than or equal to 10
• greater than or equal to 30

If a chi-squared number is 4.12 with a df of 1, what is the p-value?

• 0.002

• 0.137

• 0.042

The table shows the number or babies born on each day of the week. Is there evidence that births are more likely on specific days of the week?

• yes, the p value is greater than .05

• no evidence, the p value is less than .05

• yes, the p value is less than .05

• no evidence, the p value is greater than .05