A Consumer Product Magazine Recently Ran a Story Concerning the Increasing

A consumer product magazine recently ran a story concerning the increasing prices of digital cameras. The story stated that digital camera prices dipped a couple of years ago, but now are
Beginning to increase in price because of added features. According to the story, the average price
Of all digital cameras a couple of years ago was $215.00. A random sample of n = 200 cameras was
Recently taken and entered into a spreadsheet. It was desired to test to determine if that average
Price of all digital cameras is now more than $215.00. Find the large-sample rejection region
Appropriate for this test if we are using $$\alpha = 0,05$$

A) Reject $\mathrm { H } _ { 0 }$ if $\mathrm { z } < - 1.96$ .
B) Reject $\mathrm { H } _ { 0 }$ if $\mathrm { z } > 1.645$ .
C) Reject $\mathrm { H } _ { 0 }$ if $\mathrm { z } < - 1.96$ or $\mathrm { z } > 1.96$ .
D) Reject $\mathrm { H } _ { 0 }$ if $\mathrm { z } < - 1.645$ or $\mathrm { z } > 1.645$ .

Correct Answer:

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