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

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Question

Basic Math

Question 15

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

A service company is curious to know whether customer age iscrucial in deciding to subscribe. The company has collected arandom sample of 1000 people, and asked everyone whether he or shewould subscribe to the service. The company knows which age groupthe 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 touse a chi-square test of independence at 0.05 level of significanceto 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?

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