Thursday

October 23, 2014

October 23, 2014

Posted by **Daniel** on Thursday, March 28, 2013 at 4:56pm.

Q. One hundred draws are made at random with replacement from the box [1,2,2,5].

The draws come out as follows:17 [1]'s, 54 [2]'s, 29 [5]'s. Fill in the blanks, using the options below; show work.

(a) For the _______, the observed value is 0.8 SEs above the expected value.

(b) For the _______, the obseved value is 1.33 SEs above the expected value.

Options (one will be left over):

sum of the draws

number of 1's

number of 2's

- Statistics -
**Courtney**, Monday, April 1, 2013 at 12:00pm1 should be ¼ so it should be drawn 25 times

2 should be ½ so it should be drawn 50 times

5 should be ¼ so it should be drawn 25 times

Avg=10/4=2.5

S2=(2.25+.25+.25+6.25)/4=9/4=.25 so S=1.5

ES=100(2.5)=250

SE=√100 (1.5)=15

A. number of 2's

B. Sum of the draws (270-250=20 and 20/15=1.33)

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