Make conclusions about the hypotheses.
-A report on the U.S. economy indicates that 28% of Americans have experienced
Difficulty in making mortgage payments. A news organization randomly sampled 400
Americans from 10 cities named the "fastest dying cities in the U.S." (Forbes Magazine,
August 2008) and found that 136 reported such difficulty. Does this indicate that the
Problem is more severe among these cities? The P-value associated with the test statistic
For testing this claim is 0.0029. At α = .05,
A) we can conclude that the percentage of Americans in these cities experiencing difficulty making mortgage payments is significantly higher than 28%.
B) we can conclude that the percentage of Americans in these cities experiencing
Difficulty making mortgage payments is significantly lower than 28%.
C) we can conclude that the percentage of Americans in these cities experiencing difficulty making mortgage payments is not significantly different from 28%.
D) we can conclude that the percentage of Americans in these cities experiencing difficulty making mortgage payments is equal to 28%.
E) None of the above.
Correct Answer:
Verified
Q6: Calculate the appropriate test statistic.
-A company
Q7: Write the hypotheses.
-Top management of a
Q8: Make conclusions about the hypotheses.
-A large software
Q9: Identify the type of test.
-A company manufacturing
Q10: Identify and interpret types of error.
-Top management
Q12: Find critical values.
-Suppose that you are conducting
Q13: Write the hypotheses.
-A large software development
Q14: Calculate the appropriate test statistic.
-A report
Q15: Create a confidence interval for the mean
Q16: Calculate the appropriate test statistic.
-A large
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