Chi Square Statistic

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

• 10.5

• 11

• 14.5

• 6.3

The chi-square statistic compares observed values to values that would be expected if H₀ were true. 

• True
• False

What are the expected counts of a male who likes Coke?

• 8

• 11

• 14.5

• 6.3

What is the
χ² _calculated value for the following situation.

• 6.65
• 6.66
• 4.5
• 6.3

Tags

CCSS.HSS.ID.B.5

What is the expected value for all cells, if we assume that this is a fair six sided die and you have rolled the die 96 times?

• 96

• 16

• 8

• 1/6

Find the calculated value for χ²

• 7.94
• 18.2
• 5.62
• 7.2

If the p-value is less than α, we reject H_{0 (null hypothesis)}

• True

• False

A hypothesis test is performed and
p-value = 0.02. Which is the best conclusion?

• H₀ is rejected at α = 0.01.
• H₀ is rejected at α = 0.05.
• Ha is rejected at α = 0.01.
• Ha is rejected at α = 0.05.

You flip a coin 100 times and get 57 tails. What is the observed percentage of tails?

• 43%

• 57%

• 50%

• 100%

You flip a coin and get 43 tails. What is the expected count and actual count for getting tails when flipping a coin 100 times?

• Expected: 43 tails Observed: 50 tails

• Expected: 50 tails Observed: 50 tails

• Expected: 50 tails Observed: 43 tails

• Expected: 43 tails Observed: 43 tails