# Health Insurance Coverage Statistics Homework

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### Question Description

- Do questions 11 and 13 (attached)

- SHOW ALL WORK

- Must be typed

q11.png
q13.png

pallveechem123
School: UC Berkeley

Q11.
(a)

The hypotheses of testing are:

H 0 : The health insurance coverage is independent of the size of the company.

H 1 : The health insurance coverage is not independent of the size of the company

The following cross tablulations have been provided. The row and column total
have been calculated and they are shown below:
small

Medium

Large

Total

Yes

36

65

88

189

No

14

10

12

36

Total

50

75

100

225

The expected values are computed in terms of row and column totals. In fact, the formula
Ri C j
Cj
is Eij =
, where Ri corresponds to the total sum of elements in row i ,
T
corresponds to the total sum of elements in column j, and T is the grand total. The table
below shows the calculations to obtain the table with expected values:
Expected
Values

Small

Medium

Large

Total

Yes

50*189/225 = 42

75*189/225 = 63

100*189/225 = 84

189

No

50*36/225 = 8

75*36/225 = 12

100*36/225 = 16

36

...

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Anonymous
Tutor went the extra mile to help me with this essay. Citations were a bit shaky but I appreciated how well he handled APA styles and how ok he was to change them even though I didnt specify. Got a B+ which is believable and acceptable.

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