Question 15 Please answer the following set of questions, based on the information provided below. A...

Question 15

Please answer the following set of questions, based on the information provided below.

A service company is curious to know whether customer age is crucial in deciding to subscribe. The company has collected a random sample of 1000 people, and asked everyone whether he or she would subscribe to the service. The company knows which age group the person falls into: under 18 years of age, 18 - 29 years of age, 30-45 years of age and 46 years or older. The company decides to use a chi-square test of independence at 0.05 level of significance to answer its questions. Below are the sample’s data:

	Under 18	18-29	30-45	46 or older	Total
Yes	160	220	150	120	650
No	70	110	90	80	350
Total	230	330	240	200	1000

What is the expected value for the second age group [18-29] choosing NOT to subscribe?

Solutions

Expert Solution

the expected value for the second age group [18-29] choosing NOT to subscribe is 115.5

milcah answered 9 months ago

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