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(solution) BELOW IS A TABLE SHOWING THE NUMBER OF ZIKA MOSQUITOES FOUND IN 5


BELOW IS A TABLE SHOWING THE NUMBER OF ZIKA MOSQUITOES FOUND IN 5 NEIGHBORHOODS IN A SMALL CITY.  WE WANT TO CALCULATE THE CONFIDENCE INTERVAL AROUND THE TRUE MEAN AT A CONFIDENCE LEVEL OF 99%. 

1.  ADD UP THE FREQUENCIES TO DETERMINE N  AND THEN THE DEGREES OF FREEDOM = N - 1 = 

2.  FROM THE t-TABLE WHAT IS THE CRITICAL t-VALUE FOR THIS CONFIDENCE LEVEL (99%) WITH df = (N-1) ?

3.  CALCULATE THE MEAN AND STANDARD DEVIATION FOR THIS SAMPLE DATA (THE X-VALUES)

4.  WITH THESE NUMBERS CALCULATE THE EBM AND THEN THE 99% CONFIDENCE INTERVAL.

5.  WRITE OUT WHAT THIS CI  MEANS - BE CAREFUL !

x

Freq

1

3

2

7

3

20

4

6

5

5

 


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DATE ANSWERED

Sep 13, 2020

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