TechX have received complaints of excessive packaging of one of their products.Â Â To test whether new minimalist...

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TechX have received complaints of excessive packaging of one oftheir products.Â Â To test whether new minimalist packagingis preferred and whether the proportion of people who prefer thenew packaging is different for different age groups, they haveconducted a market test of the new packaging.Â Â Theresults are given in the table below:
Age Group less than 20 20 to 40 over 40 total
Prefer New Packaging 108 108 84
Prefer Old Packaging 54 75 71
Total
(a) At a 5 % significance level is the proportion of people whoprefer the new packaging the same for all agegroups?Â Â Set up and test the appropriate hypotheses.
(b) Suppose that a person is chosen at random from the people inthe table above.Â Â If you know that the person chosen is< 20, what is the probability that he/she prefers the newpackaging?

Age Group	less than 20	20 to 40	over 40
Prefer New Packaging	108	108	84
Prefer Old Packaging	54	75	71
Total

Answer & Explanation Solved by verified expert

4.4 Ratings (601 Votes)

Using SPSSMake variables in Variable ViewNow Click on Values then give the lables in Age GroupVariableWrite 1 in Value and level name of Age Group See Answer

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