# Statistics for Business Assignment Excel Work 2

- Results of a customer satisfaction study for ABC Software were summarized by market are above (8 Points)
- Construct a bar chart to summarize the results from Market A
- Construct a pie chart to summarize the results from Market B
- Based on the above, how do most customers in Market A feel about the latest upgrade?
- Based on the above, how do customers of ABC Software feel about the latest upgrade?

- Use a frequency distribution table to numerically summarize the variable Branch in the BUSI1013-Case.xls data set. Based on the table, use a pie chart to summarize this variable graphically. (
**4 Points**) - Use the data in BUSI1013-Case.xls to answer this question: (
**10 Points**)- Construct a frequency distribution (classes 18-25, 26-35, 36-45, 46-55, 56-65, 66-75) for the variable Age
- A relative frequency distribution for Age
- A cumulative relative frequency distribution for Age
- Construct a histogram for age using the frequency distribution in Part a.
- What does the histogram tell us about the shape of the distribution of age (skewed to right, symmetric, etc.)
- Use the data in BUSI1013-Numerical Data.xls to answer this question: (
**6 Points**)- Construct a stem-and-leaf display for the variable Income. Please be sure to include a leaf unit,
- Construct a stem-and-leaf display for the variable Number of transactions. Please be sure to include a leaf unit,
- What does the stem-and-leaf display tell us about the shape of the distribution of Income?

- Use the data in BUSI1013-Numerical Data.xls to answer this question: (
**10 Points**)- What is the sample mean income?
- What is the sample median income?
- What is the sample mode for income?
- Compute the 40
^{th}percentile for income. - Compute the first and third quartile for income.

- Use the data in BUSI1013-Numerical Data.xls to answer this question (
**14 Points**)- Find the range of the number of transactions
- Find the sample standard deviation of the number of transactions
- Compute the first and third quartile of the number of transactions
- What is the IQR for the number of transactions?
- Give the five-number summary for the number of transactions
- Are there any outliers for the number of transactions? Use the IQR rule.
- Use the z score method to check whether there is any outliers for the number of transactions.

- Use the data in BUSI1013-Case.xls and the description of the case in the Week 1 Assignment to answer this question. (
**4 Points for each of the Questions, Total 12 Points**)- Summarize the variable Deposits Before (the Pilot) using the two measures of location (Mean and Median) and the two measures of variability (range and standard deviation)
- Summarize the variable Deposits After (the Pilot) using the two measures of location (Mean and Median) and the two measures of variability (range and standard deviation)
- Based on the above, would you consider the pilot to be successful for increasing the amount of deposits from members of the Credit Union?

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