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  <Questions>
    <Question>
      <Info>Find the z-score for the given data: X=120 , μ=100 , σ=10</Info>
      <link />
      <Answers>
        <Answer>
          <Info>2</Info>
          <IsCorrect>true</IsCorrect>
        </Answer>
        <Answer>
          <Info>0.4</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>-0.66</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>-1.6</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
      </Answers>
      <Type>Single</Type>
    </Question>
    <Question>
      <Info>Find the z-score for the given data: X=22 , μ=20 , σ=5</Info>
      <link />
      <Answers>
        <Answer>
          <Info>0.7</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>0.4</Info>
          <IsCorrect>true</IsCorrect>
        </Answer>
        <Answer>
          <Info>-0.66</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>-1.6</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
      </Answers>
      <Type>Single</Type>
    </Question>
    <Question>
      <Info>Find the z-score for the given data: X=90 , μ=100 , σ=15</Info>
      <link />
      <Answers>
        <Answer>
          <Info>0.7</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>2</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>-0.66</Info>
          <IsCorrect>true</IsCorrect>
        </Answer>
        <Answer>
          <Info>-1.6</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
      </Answers>
      <Type>Single</Type>
    </Question>
    <Question>
      <Info>Find the z-score for the given data: X=77 , μ=85 , σ=5</Info>
      <link />
      <Answers>
        <Answer>
          <Info>0.7</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>2</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>0.4</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>-1.6</Info>
          <IsCorrect>true</IsCorrect>
        </Answer>
      </Answers>
      <Type>Single</Type>
    </Question>
    <Question>
      <Info>Find the z-score for the given data: X=72 , μ=65 , σ=10</Info>
      <link />
      <Answers>
        <Answer>
          <Info>-0.66</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>0.7</Info>
          <IsCorrect>true</IsCorrect>
        </Answer>
        <Answer>
          <Info>2</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>0.4</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
      </Answers>
      <Type>Single</Type>
    </Question>
    <Question>
      <Info>e=0.015, 100%(1-alpha)=95%; no prior study for the proportion</Info>
      <link />
      <Answers>
        <Answer>
          <Info>4269</Info>
          <IsCorrect>true</IsCorrect>
        </Answer>
        <Answer>
          <Info>3134</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>267</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>1848</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
      </Answers>
      <Type>Single</Type>
    </Question>
    <Question>
      <Info>e=0.023, 100%(1-alpha)=99%; no prior study for the proportion</Info>
      <link />
      <Answers>
        <Answer>
          <Info>4269</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>3134</Info>
          <IsCorrect>true</IsCorrect>
        </Answer>
        <Answer>
          <Info>267</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>1848</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
      </Answers>
      <Type>Single</Type>
    </Question>
    <Question>
      <Info>What is the sample size if you will be conducting a study with 95% confidence level and 6% margin of error where no prior study exists about the proportion? </Info>
      <link />
      <Answers>
        <Answer>
          <Info>267</Info>
          <IsCorrect>true</IsCorrect>
        </Answer>
        <Answer>
          <Info>1848</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>200</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>e=0.015, 100%(1-alpha)=95%; no prior study for the proportion</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
      </Answers>
      <Type>Single</Type>
    </Question>
    <Question>
      <Info>Magalang High School will be conducting a survey among senior high school students in their city on whether or not they are willing to have face-to-face classes for the next school year. According to a study from another senior high school, it is found that 74% of the students do not prefer face-to-face classes for the next school year. How large should be the sample size if you want to be 99% confident with only a 2% margin of error?</Info>
      <link />
      <Answers>
        <Answer>
          <Info>267</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>1848</Info>
          <IsCorrect>true</IsCorrect>
        </Answer>
        <Answer>
          <Info>200</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>3134</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
      </Answers>
      <Type>Single</Type>
    </Question>
    <Question>
      <Info>Suppose your team will be conducting a research study to determine the average amount of time that a senior high school student from your school spends watching tv, surfing the internet, listening to music, and playing esports. If you wish to be 95% confident on your estimate with a margin of error equal to 25 minutes, how many students should you interview? Consider that a related study from another school recorded a population standard deviation of 180 minutes.</Info>
      <link />
      <Answers>
        <Answer>
          <Info>3134</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>267</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
        <Answer>
          <Info>200</Info>
          <IsCorrect>true</IsCorrect>
        </Answer>
        <Answer>
          <Info>1848</Info>
          <IsCorrect>false</IsCorrect>
        </Answer>
      </Answers>
      <Type>Single</Type>
    </Question>
  </Questions>
</Data>