For the following scenario, answer the questions below. The underlined text is the name of the StatCrunch data set to be used for that part. Please note, do not conduct inference in this problem; just answer each question.
A random sample of 22 STAT 250 students was collected and the file size of Data Analysis 3 was recorded. The data was measured in megabytes. The instructors of the course claim that the file size will be different from 5 megabytes. Consider the population of all file sizes to be right skewed. Imagine we are testing if there is sufficient evidence to conclude that the mean file size of Data Analysis 3 is less than 5 megabytes. The data set is called "File Size of DA 3."
a) What is the parameter of interest? Choose one of the following symbols mu the population mean) muD (the mean difference from paired (dependent) data): mu 1-mu2 (the difference of two independent means) and describe the parameter in context of this question in one sentence.
b) Depending on your answer to part (a), construct one or two relative frequency histograms. Remember to properly title and label the graph(s). Copy and paste these graphs into your document.
c) Describe the shape of the histogram(s) in one sentence.
d) Depending on your answer to part (a), construct one or two boxplots and copy and paste these graphs into your document.
e) Does the boxplot (or do the boxplots) show any outliers? Answer this question in one sentence and identify any outliers if they are present.
f) Considering your answers to parts (c) and (e), is inference appropriate in this case? Why or why not? Defend your answer using the graphs in two to three sentences.