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The mean price of 7 Hewlett Packard computers is $815 with a standard deviation of $19.

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The mean price of 7 Hewlett Packard computers is $815 with a standard deviation of $19. The mean price of 9 IBM computers is $845 with a standard deviation of $9. If the alpha value is 0.05, can a computer shopper conclude that the IBM computers cost more?
a. yes, there is enough evidence to conclude IBM computers cost more
b. no, there is enough evidence to conclude Hewlett Packard computers cost more
c. given the information, a conclusion cannot be made
d. they are equal in cost

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In order to compare the mean prices we have to set up the hypothesis testing.
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<br>Here Ho = mean ...

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