Two Graphical Displays Are Given for a Set of Data $\begin{array} { r | r } 5 & 79 \\ 6 & 14 \\ 7 & 26 \\ 8 & 06 \\ 9 & 35 \\ 10 & 02 \end{array}$

question 40

Essay

Two graphical displays are given for a set of data. A hypothesis test is to be performed for the mean of the populationfrom which the data were obtained. Would it be reasonable to use a one-mean z-test? Explain your reasoning. Assumethat the population standard deviation is known.
-A normal probability plot and a stem-and-leaf diagram of the data are given below. $\begin{array} { r | r } 5 & 79 \\ 6 & 14 \\ 7 & 26 \\ 8 & 06 \\ 9 & 35 \\ 10 & 02 \end{array}$

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