A Consumer Product Magazine Recently Ran a Story Concerning the Increasing

question 12

Multiple Choice

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 $n = 22$ 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 a rejection region appropriate for this test if we are using $\alpha = 0.05$ .

• A) Reject \(\mathrm { H } _ { 0 }\) if \(\mathrm { t } > 2.080\) or \(\mathrm { t } < - 2.080\)
• B) Reject \(\mathrm { H } _ { 0 }\) if \(\mathrm { t } > 1.721\)
• C) Reject \(\mathrm { H } _ { 0 }\) if \(\mathrm { t } > 1.717\)
• D) Reject \(\mathrm { H } _ { 0 }\) if \(\mathrm { t } > 1.725\)

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Definitions:

Civil War

Refers to the American Civil War, fought from 1861 to 1865, primarily over the issues of slavery and states' rights, resulting in the preservation of the Union.

Autonomy

The right or condition of self-government, or the capacity of an individual to make an informed, uncoerced decision.

Free Blacks

African Americans who were not enslaved and lived freely, especially prevalent in the United States before the Civil War.

Testify In Court

The act of giving a statement or evidence under oath in a legal proceeding, with the purpose of establishing the facts of a case.