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  • Question 1

    a)    An outlier is a point more than ______________ IQR from either end of the box in a boxplot.

    b)    _________________ symbol represents the standard deviation of the population.

    c)    A numerical value used as a summary measure for a sample, such as sample mean, is known as a _________________________

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    Question 2

    a)  The Federal Election Commission (FEC) collects information about campaign contributions and disbursements for candidates and political committees each election cycle. A political action committee (PAC) is a committee formed to raise money for candidates and campaigns. A Leadership PAC is a PAC formed by a federal politician (senator or representative) to raise money to help other candidates' campaigns. The FEC has reported financial information for 556 Leadership PACs that were operating during the 2011-2012 election cycle. A random selection of 26 Leadership PACs shows a mean of $251,854.23 with a sample standard deviation of $521,130.41. Use this information to construct a 96% confidence interval for the mean amount of money raised by all Leadership PACs during the 2011-2012 election cycle.


    Question 3

    Table #2.3.7 contains the value of the house and the amount of rental income in a year that the house brings in ("Capital and rental," 2013). Create, a scatter plot and state if there is a relationship between the value of the house and the annual rental income.

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    Question 4 (10 points)

    Print-O-Matic printing company spends specific amounts on fixed costs every month. The costs of those fixed costs are in table #3.2.13.

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    a.)  Find the mean and median.

    b.)  Find the range.

    c.)  Find the variance and standard deviation.

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    Assume that thermometer readings are normally distributed with a mean of 0 C and a standard
    deviation of 1.00 C. A thermometer is randomly selected and tested. For the case below, draw
    a sketch, and find the probability of the reading. (The given values are in Celsius degrees.)
    Between 0.25 and 2.00

    Top Answer

    a)An outlier is a point more than 1.5 IQR from either end of the box in a... View the full answer

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