Type of study Guides 1a 1b 2a 2b 3a 3b 4a 4b Angles 400 500

Type of study Guides

1a

1b

2a

2b

3a

3b

4a

4b

Angles

400

500

400

500

400

500

400

500

proofs

1200

1500

1200

1500

1200

1500

1200

1500

triangles

400

500

400

500

400

500

400

500

Using the contingency table for the problems.

A) The total sale amounts for each entire marking period (start, end) is a population

B) µ= Mar Per (Start/End) Sales Total

                            3

C) a= 0.05

1. Do a One way ANOVA. Tell us how the results apply to the sales predictions.

Ho: µ1 = µ2= µ2

H1: µ(n) µ(m)

2. Do a two-way-ANOVA. Tell us how the results apply to sales predictions.

Ho: No interaction between time-of-the-school and study-guide-type

H1: There is interaction between time-of-school-year and study-guide-type.

If Ho is supported then

Ho: Time-of-the-year does not affect sales.

H1: Time-the-school-year does affect sales

And

Ho: Study-guide-type- does not affect sales.

H1: Study-guide type does affect sales

Type of study Guides	1a	1b	2a	2b	3a	3b	4a	4b
Angles	400	500	400	500	400	500	400	500
proofs	1200	1500	1200	1500	1200	1500	1200	1500
triangles	400	500	400	500	400	500	400	500

Solution

Conclusion:

At 5% significance level, Ho: µ1 = µ2= µ2 is rejected.

mu1 = mu2 and mu2 = mu3 are rejected

mu1 = mu3 is accepted

Samples	I	II	III
N	8	8	8
Sum	3600	10800	3600
Mean	450	1350	450
Sum (x^2)	1640000	14760000	1640000
Variance	2857.1429	25714.285	2857.1429
Std dev	53.4522	160.3567	53.4522
Std error	18.8982	56.6947	18.8982
Anova Table
Source	SS	df	MS	F	p
Treatment	4320000	2	2160000	206.18	0.0001
Error	220000	21	10476.191
Total	4540000	23
Tukey HSD Test
HSD(0.05) =128.99,	HSD (0.1)	167.17
M1VM2	p<0.1	Reject hypothesis mu1 = mu2
M1VM3		Not significant
M2VM3	p<0.1	Reject hypothesis mu1 = mu2
HSD	Absolute unsigned difference