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Market Research Inc

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wants to know if shoppers are sensitive to the prices of items sold in a supermarket.OneH : P = 0.5
VS
H : P 20 . 5
( left- tailed fest )
= 0. 07
Sample proportion, P = 2
378
802
= 0.4713
P = 0.47
test statistic –
Z =
P – P
0.4713 – 0.5
PCI – P )
0.5 ( 1- 0.5 )
802
2= – 1. 625
P-value…Statistics and Probability