Answer
The graphical summary of the provided data is shown below:
Work Step by Step
A graphical summary is created in Minitab and the steps are as follows:
Step 1: Enter the provided data under column C1.
Step 2: Go to Stat, select basic statistics, and choose Graphical summary.
Step 3: A new dialog box is created.Put data of viewing a Web page under graphical variables. Finally, click ok.
A graphical summary of the provided data shows that the data is rightly skewed, that is,the values are first increasing and then decreasing. The minimum value in the data set is 4 and the maximum value is 257 that is an outlier. The box plot shows that 185 and 257 are outliers.
According to Anderson–Darling Normality test, the p-value 0.005 is less than the significance level. So, the null hypothesis gets rejected and it is concluded that the data does not follow a normal distribution.
From the graph, it is concluded that the data is positively skewed and there are two outliers 185 and 257.
