Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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 From
1990 to 2000 the average temperature in July in Atlanta was 90° F. A researcher believes
due to Global Warming that the average temperature is increasing in Atlanta. Which of the below
could be the null Hypothesis?
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a. | Ho: The mean temperature in Atlanta in July isn’t
90° F. | b. | Ho: The mean temperature in
Atlanta in July is strictly greater than 90° F. | c. | Ho:
The mean temperature in Atlanta in July is less than or equal to 90°
F. | d. | Ho: The mean temperature in Atlanta in July is strictly less
than 90° F. |
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2.
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 A researcher believes that children that
drink conventional milk will grow taller than the children that drink organic milk due to the
differences in the hormones that are fed to the cows. Given:
What is the null
hypothesis using symbolic notation?
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3.
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 A
student playing a board games believes that a standard six sided die is incorrectly weighted.
The student thinks that the number “1” is showing up more than it should.
What is the alternative hypothesis using symbolic
notation?
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4.
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 Data
had shown originally early in the Pandemic that the average number of days a person had symptoms
after contracting COVID-19 was 10 days. However, a researcher believes that parameter has
changed over the last few years and the number of days has decreased.
What is the alternate
hypothesis using symbolic notation?
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