This is an assignment in my business statistics class (FINA 220)This assignment consists of solving 4 problems from the textbook (Statistical Techniques in Business and Economics, 16 th Edition, McGraw-Hill), two from chapter 2 and two from chapter 3. Excel data files are provided below for each of the problem. When you solve the 4 problems, please copy the data into 4 tabs of one Worksheet before you start. Do not keep it in 4 files.Here are the problems:2.30) The weekly amounts spent on groceries for a sample of 45 households is provided in the attached file. a) How many classes would you recommend for grouping the data?b) What class interval would you suggest?c) What would you recommend as the lower limit of the first class?d) Organize the data into a frequency distribution.e) Plot the distribution using a bar chart in Excel.2.43) Merill Lynch recently completed a study regarding the size of online investment portfolios (stocks, bonds, mutual funds, and certificates of deposit) for a sample of clients in the 40 up to 50 years old age group. The value of all investments in thousands of dollars for the 70 participants in the study is provided in the attached file.a) Organize the data into frequency distribution. How many classes would you suggest ? What value would you suggest for a class interval?b) Draw a histogram. Inerpret your results.c) What is the mean, the variance, and the standard deviation of the data?3.65 A sample of households that subscribe to United Bell Company for landline phone service revealed the following number of calls received per household last week (see attached data file for the numbers). Determine the mean and the median number of calls received.3.77 The enrollments of the 13 public universities in Ohio is given in the attached data file.a) Is this a sample or a population?b) What is the mean enrollment?c) What is the median enrollment?d) What is the range of enrollments?e) Compute the standard deviation.

Using the sample data, perform one-way analysis of variance (ANOVA). Evaluate whether the average return of at least one of the industry-specific ETFs is significantly different. Use a 5% level of significance.In your initial post, address the following items:Define the null and alternative hypothesis in mathematical terms and in words.Report the level of significance.Include the test statistic and the P-value. See Step 2 in the Python script.Provide your conclusion and interpretation of the test. Should the null hypothesis be rejected? Why or why not?Does a side-by-side boxplot of the 10-year returns of ETFs from the three sectors confirm your conclusion of the hypothesis test? Why or why not? See Step 3 in the Python script.Attached is the data needed to answer the questions.