Is the F-value for Levene's Test for Equality of Variances - 94972

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T-Test Notes Output Created 07-JUN-2013 11:20:55 Comments Input Data C:\Users\donn\Documents\GCU Lead fac\Project with Judy for modifying PSY845 to introduce SPSS\drinks database -revised for course applications DH.sav Active Dataset DataSet1 File Label SPSS/PC+ Filter Weight Split File 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:\Users\donn\Documents\GCU Lead fac\Project with Judy for modifying PSY845 to introduce SPSS\drinks 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 Levene's Test for Equality of Variances F Sig. Price per 6-pack for brand Equal variances assumed 6.987 .012 Equal variances not assumed Independent Samples Test t-test for Equality of Means df Sig. (2-tailed) Mean Difference t Price per 6-pack for brand Equal variances assumed 33 .362 .43964 .924 Equal variances not assumed 31.912 .086 .43964 1.769 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 1.Is the F-value for Levene's Test for Equality of Variances significant (that is, is the p < .05)? 2. What is the exact significance level? Note: if the Levene's Test for Equality of Variances is significant, then equal variances cannot be assumed. 3. Which t-value should you use now that you know whether or not equal variances can be assumed? What is that t-value? 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?
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