Web Calculator Exercise 1

Topics: Normal distribution, Standard deviation, Standard score Pages: 7 (1000 words) Published: April 25, 2013
Web Calculator Exercise 1

Descriptive Statistics

1. The table below presents data for a sample of people who completed a religious survey.

|Age |Gender |Denomination |Church Attendance | |56 |1 |7 |4 | |46 |2 |6 |5 | |49 |2 |6 |5 | |49 |1 |1 |5 | |27 |2 |9 |5 | |51 |1 |4 |2 | |47 |2 |2 |3 | |67 |1 |5 |4 | |49 |2 |2 |6 | |33 | 1 |12 |6 | |55 |2 |9 |5 | |40  |1 |7 |5 | |62 |1 |8 |6 | |47 |2 |6 |3 | |56 |2 |9 |5 | |22 |1 |10 |2 | |50 |2 |4 |5 | |51 |1 |10 |6 | |50 |1 |7 |6 | |43 |1 |10 |3 |

In this table, the numbers in the gender, denomination, and church attendance columns represent the following.

Gender
1. Male
2. Female

Denomination
1. Episcopal
2. Lutheran
3. Methodist
4. Presbyterian
5. Other mainline Protestant
6. Baptist
7. Other Evangelical Protestant
8. Pentecostal
9. Charismatic
10. Non-denominational
11. Catholic
12. Other

Church Attendance
1. less than once a month
2. once a month
3. a few times a month
4. once a week
5. twice a week
6. three or more times a week

a. What is the mean age of this sample? What is the standard deviation? The mean age is 47.5 years old. The standard deviation is 10.74832 years. http://easycalculation.com/statistics/standard-deviation.php

b. Create a frequency distribution table for denomination. |Denomination |Frequency |
|1 |1 |
|2 |2 |
|3 |0 |
|4 |2 |
|5 |1 |
|6 |3 |
|7 |3 |
|8 |1 |
|9 |3 |
|10 |3 |
|11 |0 |
|12 |1 |

c. What is the percentage of people who identify themselves as Baptist in this sample? The percentage of Baptists is 15%. I found this by dividing the amount of total number of church attendance (20) by the total number of Baptist attendance (5). d. What is the mode of church attendance?

The mode of church attendance is twice a week. I found this by creating a frequency table.

|Attendance |Frequency |
|1 |0 |
|2 |2 |
|3 |3 |
|4 |2 |
|5 |8 |
|6 |5 |

2. The...
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