# lab2 by uc86

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```									Dr. Workman – Statistics, Summer Term

Lab 02: Name(s) ____________________________________________________

Question 1 (3 points): Attitudes for groups were measured by survey on a scale of 1 to 7, where 1 =
poor and 7 = great. Examine the following ANOVA results and state whether or not the results are
significant. Explain which group(s) has the best attitude, assuming the results are statistically significant:

ATTITUDE: Dependent Variable
Sum of Squares             df        Mean Square        F         Sig.

Between Groups                  69.565       3                23.188    12.630    .000

Within Groups                84.455      46                 1.836

Total            154.020       49

Tukey HSD:
Sig.
(I) GROUP      (J) GROUP
1              2       .029
3       .901
4       .000

2               1    .029
3    .031
4    .133

3               1    .901
2    .031
4    .000

4               1    .000
2    .133
3    .000

ATTITUDE
Group              N        Mean                SD
1             13        2.7692              1.2352
2             12        4.3333              1.0731
3             12        2.7500              1.5448
4             13        5.5385              1.5064
Total            50        3.8600              1.7729
Dr. Workman – Statistics, Summer Term

Question 2 (3 points): You are a manager of large retail store. Your sales staff has been given a
personality test called Selling Styles (S2). Your staff has the following scores on the test:

Sales Person          S2 Score
Mike                              22
Jose                              13
Albert                            19
Marta                             19
Lori                              20
Yusef                             16
Sandeep                           20
Brita                             21
Pinaki                            38
Mustafa                           23
Ellen                             14

Determine the Z score for a new employee, Fred, who received a 30 on the test.

Z-Score Formula = Z = X -  / 

**Show your work (and calculate it my hand)!
Dr. Workman – Statistics, Summer Term

Question 3 (4 points): For the following data – compute (by hand) a Pearson correlation for Number of