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i need solutions module 4 please help

Review the SPSS output file which reports the results of the independent t-test to compare the mean price per 6-pack for regular vs. reduced calorie brands of wheat beer. Answer the following questions based on your observations of the SPSS output file:

  1. Is the F-value for Levene’s Test for Equality of Variances significant (that is, is the p < .05)? What is the exact significance level? Note: if the Levene’s Test for Equality of Variances is significant, then equal variances cannot be assumed.
  2. Which t-value should you use now that you know whether or not equal variances can be assumed? What is that t-value?
  3. What is the two-tailed significance level for that t-value? State the exact significance value. Report the results of the t-test as follows: t(df value) = ___, and p-value. 
  4. Is there a statistically significant difference between the price per 6-pack of regular beers versus reduced calorie beers?

 

T-TEST GROUPS=Reducedcals(0 1)

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  /MISSING=ANALYSIS

 

  /VARIABLES=price

 

  /CRITERIA=CI(.95).

 

 

 

 

 

 

 

T-Test

 

 

 

 

 

Notes

Output Created

07-JUN-2013 11:20:55

Comments

 

Input

Data

C:UsersdonnDocumentsGCU Lead facProject with Judy for modifying PSY845 to introduce SPSSdrinks database -revised for course applications DH.sav

Active Dataset

DataSet1

File Label

                       SPSS/PC+

Filter

<none>

Weight

<none>

Split File

<none>

N of Rows in Working Data File

35

Missing Value Handling

Definition of Missing

User defined missing values are treated as missing.

Cases Used

Statistics for each analysis are based on the cases with no missing or out-of-range data for any variable in the analysis.

Syntax

T-TEST GROUPS=Reducedcals(0 1)

  /MISSING=ANALYSIS

  /VARIABLES=price

  /CRITERIA=CI(.95).

Resources

Processor Time

00:00:00.02

Elapsed Time

00:00:00.01

 

 

 

 

 

[DataSet1] C:UsersdonnDocumentsGCU Lead facProject with Judy for modifying PSY845 to introduce SPSSdrinks database -revised for course applications DH.sav

 

 

 

 

 

Group Statistics

 

Regular or reduced calorie for brand

N

Mean

Std. Deviation

Price per 6-pack for brand

Regular

28

3.1154

1.24040

Reduced Calories

7

2.6757

.21870

 

 

 

Group Statistics

 

Regular or reduced calorie for brand

Std. Error Mean

Price per 6-pack for brand

Regular

.23441

Reduced Calories

.08266

 

 

 

 

 

Independent Samples Test

 

 

Levene’s Test for Equality of Variances

t-test for Equality of Means

 

F

Sig.

t

 
 

Price per 6-pack for brand

Equal variances assumed

6.987

.012

.924

 

Equal variances not assumed

 

 

1.769

 

 

 

 

Independent Samples Test

 

 

t-test for Equality of Means

 

df

Sig. (2-tailed)

Mean Difference

 
 

Price per 6-pack for brand

Equal variances assumed

33

.362

.43964

 

Equal variances not assumed

31.912

.086

.43964

 

 

 

 

Independent Samples Test

 

t-test for Equality of Means

Std. Error Difference

95% Confidence Interval of the Difference

Lower

Upper

Price per 6-pack for brand

Equal variances assumed

.47576

-.52829

1.40758

Equal variances not assumed

.24856

-.06671

.94600

 

 
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