Question 3 1 pts Donnelly's Business Statistics has a data set concerning the revenue from a set of Nigerian cell phone customers. Use that data set which is here to answer this question. What is the average revenue per customer? Answer to at least two decimal places. 9.8 Question 4 1 pts Donnelly's Business Statistics has a data set concerning the revenue from a set of Nigerian cell phone customers. Use that data set which is here to answer this question; the data set values are the revenue from the customers. What is the test statistic for the null hypothesis that average revenue per customer is equal to $1 'I ? Answer to at least two decimal places. Question 5 1 pts Donnelly's Business Statistics has a data set concerning the revenue from a set of Nigerian cell phone customers. Use that data set which is here to answer this question; the data set values are the revenue from the customers. What is the positive version of the critical value forthe hypothesis that average revenue per customer equal to $11 at the .05 level of significance? Answer to at least two decimal places