Answer: 11.667
Step-by-step explanation:
The formula to find the test statistic for chi-square test is given by :-

Given : Claim : 

Then , the standardized test statistic will be :-

Hence, the standardized test statistic 
Orwell, on average, was photographed 22 times every hour.
The point-slope form of the equation of a line of slope m through point (h, k) is given by
... y - k = m(x - h)
Substituting your given values, you have ...
... B. y - 5 = 3(x - 2)