Use the Following Information to Answer Questions (12)-(15)

question 32

Multiple Choice

Use the following information to answer questions (12) -(15) . Many couples believe that it is getting too expensive to host an "average" wedding in the United States. According to a statistics study in the U.S., the average cost of a wedding in the U.S. in 2014 was $25,200. Recently, in a random sample of 35 weddings in the U.S. it was found that the average cost of a wedding was $24,224 with a standard deviation of $2,210.
-If a 95% confidence interval for the mean for the wedding sample is ($23465, $24983) , does this mean that the sample results are significantly different from the claimed value for the mean of $25,200?

• A)Since the claimed population mean is outside of the 95% confidence interval, we conclude that the sample results are significantly different.
• B)Since the claimed population mean is outside of the 95% confidence interval, we conclude that there is a 95% chance that the sample results are significantly different.
• C)Since the accepted population average is outside of the 95% confidence interval, we conclude that there is a 5% chance that the sample results are significantly different.
• D)Since the accepted population average is outside of the 95% confidence interval, we conclude that the sample results are not significantly different.

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Definitions:

Limbs

Appendages of the body used for movement or manipulation, such as arms and legs.

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Classification of strokes based on their cause, with the main types including ischemic (due to blockages) and hemorrhagic (due to bleeding).

Heart Attack

A medical emergency where blood flow to the heart is suddenly blocked, causing damage to heart muscle.

Numbness

A lack of sensation in a part of the body, often indicating a nerve dysfunction or damage.