Use the Following Information to Answer the Question

question 2

Multiple Choice

Use the following information to answer the question. According to the website ww.costofwedding.com, the average cost of flowers for a wedding is $698. Recently, in a random sample of 40 weddings in the U.S. it was found that the average cost of the flowers was $734, with a standard deviation of $102. On the basis of this, a 95% confidence interval for the mean cost of flowers for a wedding is $701 to $767.
-Choose the statement that is the best interpretation of the confidence interval.

• A)In about 95% of all samples of size 40, the resulting confidence interval will contain the mean cost of flowers at weddings.
• B)We are extremely confident that the mean cost of flowers at a wedding is between $701 and $767.
• C)That probability that flowers at a wedding will cost less than $767 is nearly 100%.
• D)That probability that the flowers at a wedding will cost more than $698 is greater than 5%.

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Definitions:

Description

The act of detailing or explaining the characteristics, features, or aspects of something.

Operational Definition

A clear, detailed description of how variables in a study are measured or categorized.

Independent Variable

The factor in a study that the investigator alters to examine its impact on the dependent variable.

Inferential Statistics

A branch of statistics that deals with drawing conclusions about a population based on a sample.