AP Stats Cumulative Review #2 KG - University Quiz

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5 questions

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1.

MULTIPLE CHOICE

1 min • 1 pt

The appraised values of houses in a city have a mean of $125,000 with a standard deviation of $23,000. Because of a new teachers' contract, the school district needs an extra 10% in funds compared to the previous year. To raise the additional money, the city instructs the assessment office to raise all appraised house values by $5,000. What will be the new standard deviation of the appraised values of houses in the city?

2.

MULTIPLE CHOICE

1 min • 1 pt

Define a new measurement as the difference between the 60th and 40th percentile scores in a population. This measurement will give information concerning

Tags

CCSS.HSS.ID.A.2

3.

MULTIPLE CHOICE

1 min • 1 pt

Which of the following can affect the value of the correlation, r?

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

4.

MULTIPLE CHOICE

1 min • 1 pt

Which among the following would result in the narrowest confidence interval?

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

5.

MULTIPLE CHOICE

3 mins • 1 pt

The American Medical Association (AMA) wishes to determine the percentage of obstetricians who are considering leaving the profession because of the rapidly increasing number of lawsuits against obstetricians. How large a sample should be taken to find the answer within 3% at the 95% confidence level?

Tags

CCSS.HSS.IC.B.4

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