In the STA 2023 Spring 2021 student survey, data was collect…

In the STA 2023 Spring 2021 student survey, data was collected on a lot of different variables.  These included gender, number of towns/cities lived in, hours of sleep, major and number of credits this semester.  a. For the variable hours of sleep, 8 students were randomly selected.  Their hours of sleep are given below.                 8    8    6    6    10    6    7    7 What are the sample mean and standard deviation? [1]   b. Another variable that data was collected on was type of cellphone: iPhone, Samsung, Google, I don’t use one, Other.  What type of graph would you use to display this data? [2]