A mail-order catalog firm designed a factorial experiment to test the effect of the size of a magazine advertisement and the adv
ertisement design on the number (in thousands) of catalog requests received. Three advertising designs and two sizes of advertisements were considered. The following data were obtained.
Size of Advertisement
Small Large
A 8 12
12 8
Design B 22 26
14 30
C 10 18
18 14
Test for any significant effects due to type of design, size of advertisement, or interaction. Use the ANOVA procedure for factorial designs to test for any significant effects due to type of design,size of advertisement,or interaction. Use alpha=0.05.
Show your ANOVA result and answer the following:
(a) Is the effect of advertisement size significant (i.e., are averages for advertisement size not the same?)
(b) Is the effect of design significant?
(c) Is the interaction between advertisement size and design significant?
Size of Advertisement
Small Large
A 8 12
12 8
Design B 22 26
14 30
C 10 18
18 14
Test for any significant effects due to type of design, size of advertisement, or interaction. Use the ANOVA procedure for factorial designs to test for any significant effects due to type of design,size of advertisement,or interaction. Use alpha=0.05.
Show your ANOVA result and answer the following:
(a) Is the effect of advertisement size significant (i.e., are averages for advertisement size not the same?)
(b) Is the effect of design significant?
(c) Is the interaction between advertisement size and design significant?
1 answer:
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Answer:
a) 45° cause tan = sin/cos and sin 45 and cos 45 both give square root 2/2
b) 120°
c) sin = -1/2 = -30° or 330° both are same
Use the trig circle which i have included in the answer to better understand trig angles
hope that answers your question
I want to let you know that each angle has sets of coordinates the left number is cos and right is sin. Ex) sin of 30 is 1/2 and cos of 30 is square root 3/2 In case you dont fully understand dont hesitate to comment.
good luck!!
