The management of a company know that in the past, 38% of their sales were from people under 30 years old, 45% of their

[answerhappygod]

The management of a company know that in the past, 38% of their
sales were from people under 30 years old, 45% of their sales were
from people who are between 30 and 50 years old, and 17% of their
sales were from people who are over 50 years old. A sample of 225
customers was taken to see if these market shares had changed. In
the sample, 75 people were under 30 years old, 100 people were
between 30 and 50 years old, and 50 people were over 50 years
old.

What is the expected counts under the null for people over 50 years
old? (round to 2 decimals)
The value of the test statistic
χ2 is: (round to 4
decimals
The p-value is: (round to 4 decimals)
The conclusion is:
Group of answer choices
A-Fail to reject H0 and conclude there has been NOT a
significant change.
B- reject H0 and conclude there has been a significant
change.
C- Fail to reject H0 and conclude there has been a significant
change.
D- reject H0 and conclude there has been NOT a significant
change.