My Drive x E RMI Go x Event plaan x Homewor x MP Do Home x Hw 5: Teo x C chegg s

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My Drive x E RMI Go x Event plaan x Homewor x MP Do Home x Hw 5: Teo x C chegg st x C 8:07 PM 1 x C 100% Pao x C Pad 8:09 x Vincen C Secure https://xlitemprod.pearsoncmg.com/api/v1/print/math EE Apps e stocks europe A Fidelity win Y Real Estate E Sti Imported From Safari G business e GroupMe L Drive YT a A e work Chase Other Bookmarks Print 3. Students in a business statistics course performed a complete y randomized design to test the strength of four brands of trash bags. One-pound weights were placed into a bag, one at a time, until the bag total of 24 bags, 6 for each brand, were used. The data in the accompanying table give the weight (in pounds) required to break the trash bags. Complete (a) through (d) below. Click on the icon to view the data table. 2 Click on the icon to view a partial table of critical values of F s Click on the icon to view a partial table of critical values of the Studentized Range, Q a. At the 0.05 level of significance, is there evidence of a difference in the mean strength of the four brands of trash bags? Determine the hypotheses. Choose the correct answer below. A. H B. Ho: H1 -H2 H6 H1: Not all Hi are equal H1: Not all H are equal (where 1,2,..., 6) where j 12,... 4) O C H4 Find the test statistic. (Round to two decimal places as needed.) STAT Determine the critical value. (Round to two decimal places as needed.) Reach a decision. 1) Ho. There is (2) evidence of a difference in the mean strength of the four brands of trash bags. b. If appropriate, determine which brands differ in mean ratings. ls there significant evidence that Brand 1 and Brand 2 differ in mean strength? O A. Yes O B. No O C. It is not appropriate to test which brands differ in mean strength. ls there significant evidence that Brand 1 and Brand 3differ in mean strength? O A. Yes O B. No

Explanation / Answer

Null Hypothesis:

Ho:All brand means are equal

Alternative Hypothesis:

H1:Atleast one o f the brand means are difference:

Reject Null hypotehsis:

p<0.05

Thee is sufficient evidence at 5% level of significance to support the claim

Brand 4 shpuld be avoided lowest means

Anova: Single Factor SUMMARY Groups Count Sum Average Variance brand1 6 214 35.66667 9.066667 brand2 6 216 36 18.4 brand3 6 206 34.33333 1.866667 brand4 6 110 18.33333 5.466667 ANOVA Source of Variation SS df MS F P-value F crit Between Groups 1309.833 3 436.6111 50.18519 1.72E-09 3.098391 Within Groups 174 20 8.7 Total 1483.833 23

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