A Landscaping Company Hypothesizes That They Can Mow a Median $$\begin{array} { l l l l l l l } 22 & 18 & 19 & 20 & 25 & 20 & 18 \\22 & 23 & 20 & 21 & 26 & 24 & 22\end{array}$$

question 28

Multiple Choice

A landscaping company hypothesizes that they can mow a median number of 20 lawns in one weekend.
A random sample of 14 weekends yields the following data:
$$\begin{array} { l l l l l l l } 22 & 18 & 19 & 20 & 25 & 20 & 18 \\22 & 23 & 20 & 21 & 26 & 24 & 22\end{array}$$
-Is the landscaping company's hypothesis of a median of 20 lawns per weekend valid?

• A) yes
• B) no
• C) Null hypothesis is invalid because the numbers of positives and negatives are equal.
• D) There are not enough data points to make a valid determination.

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Definitions:

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