A study was done to compare the flu incidence rates at the sart and at the end of winter of a given year. A sample of 100 persons were asked for incidence of flu twice: once at the start and once at the end of winter. Sample data were as follows:

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please solve it fast ASAP. A study was done to compare the flu incidence rates at the sart and at the end of winter of a given year. A sample of 100 persons were asked for incidence of flu twice: once at the start and once at the end of winter. Sample data were as follows:

Start of
No
winter
Yes
Yes
20
25
45
.:
End of Winter
No
15
40
55
35
65
100
a. Test at (a=0.04) if the flu percentage at the start of winter is below 0.4?
b.Give 97% Confidence Interval (CI) for incidence of flu rate(percentage) at the start of winter?
c.Test at (a=0.03) if the flu percentage at the end of winter is above that at the start of winter?
Transcribed Image Text:Start of No winter Yes Yes 20 25 45 .: End of Winter No 15 40 55 35 65 100 a. Test at (a=0.04) if the flu percentage at the start of winter is below 0.4? b.Give 97% Confidence Interval (CI) for incidence of flu rate(percentage) at the start of winter? c.Test at (a=0.03) if the flu percentage at the end of winter is above that at the start of winter?
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