Census statistics the assignment should be two to three page

Census statistics the assignment should be two to three pages long using 12 point times new roman font, 1 inch margins, and 1.5 line spacing (click on page layout, paragraph,\"1.5 lines\" under \"line spacing\".) put your name title of your paper and the date at the top of the assignment

Solution

Data: Daily Mean temperature from Nov 11 to Dec 10

Burbank, California.

Source: http://www.wunderground.com/history/airport/KBUR/2015/11/26/DailyHistory.html?req_city=Burbank&req_state=&req_statename=California&reqdb.zip=&reqdb.magic=&reqdb.wmo=

There are no outliers

Mean temp = 15.4

Stdev = 3.15

n = 30

Std error = stdev/sqrt(n) = 3.15/sqrt(30) = 0.574

Critical value for alpha 0.05 is + 1.96

Margin of Error = Critical value * std error = + 1.96 * 0.574 = + 1.126

Confidence interval = sample mean + margin of error = 15.4 + 1.126 = (14.274 , 16.526)

4) A bigger sample size would have resulted in a smaller standard error and thus a smaller and more accurate confidence interval

Date	Temp
01/11/11	14
02/11/11	15
03/11/11	17
04/11/11	17
05/11/11	13
06/11/11	12
07/11/11	14
08/11/11	17
09/11/11	19
10/11/11	20
11/11/11	21
12/11/11	20
13/11/11	18
14/11/11	14
15/11/11	12
16/11/11	12
17/11/11	12
18/11/11	11
19/11/11	12
20/11/11	11
21/11/11	14
22/11/11	16
23/11/11	16
24/11/11	14
25/11/11	14
26/11/11	18
27/11/11	18
28/11/11	21
29/11/11	18
30/11/11	11