Question
In: Statistics and Probability
part a ) Market research Inc. wants to know if shoppers are sensitive to the prices...
part a )
Market research Inc. wants to know if shoppers are sensitive to the prices of items sold in a supermarket. One supermarket owner claims that less than half of his consumers actually know the price of the items they are purchasing. It obtained a random sample of 802 shoppers and found that 378 were able to state the correct price of an item immediately after putting it into their cart. Test at the 7% level whether the owners claim is correct.
part b)
Estimate the proportion of shoppers that know the price of the item they are buying. Use alpha=.05
Does this interval confirm your result from part a ? Why or why not?
Solutions
orchestra answered 2 years agoRelated Solutions
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