1. Based on the last SPSS Demonstration on Descriptives, compare the means for each variable (AGE, EMAILHR, and TVHOURS) for men and women. - On average, which group is older, uses their e-mail more frequently, and watches more television per day? - Program SPSS to split the file by DEGREE (respondent's educational attainment) and run Descriptives for EMAILHR. Rank the DEGREE groups by the highest to lowest e-mail use per day.

2. Picking an appropriate statistic to describe the central tendency of a distribution is a critical skill. Determine the appropriate measure(s) of central tendency for the following variables (remember to reset the Split File optionAnalyze All Cases, Do Not Create Groups): - Respondent's marital status [MARITAL] - Respondent's general level of happiness [HAPPY] - Number of hours a respondent worked last week [HRS1] - Which presidential candidate respondent voted for in 2016 [PRES16] - Number of brothers and sisters of respondents [SIBS] - Beliefs about the Bible [BIBLE]

3. The following GSS 2018 frequency distribution presents information about people's self-evaluations of their lives, based on three categories: (1) exciting, (2) routine, and (3) dull.

Respondent's Assessment of Life | Frequency | Percentage | Cumulative Percentage |

Exciting | 348 | 46.6 | 46.6 |

Routine | 356 | 47.7 | 94.3 |

Dull | 42 | 5.6 | 99.9 |

Total | 746 | 99.9 |

- Find the mode. - Find the median. - Interpret the mode and the median. - Why would you not want to report the mean for this variable?

4. GSS 2018 respondents were asked to rate their agreement to the following statement: "Even if it brings no immediate benefits, scientific research that advances the frontiers of knowledge is necessary and should be supported by the federal government." Responses were measured on a 4-point scale: strongly agree, agree, disagree, and strongly disagree. | Frequency |

Strongly agree | 243 |

Agree | 468 |

Disagree | 101 |

Strongly disagree | 23 |

Total | 835 |

-What is the modal category? -Calculate the median category for this variable. -Identify which categories contain the 20th and 80th percentiles.

5. During the 2016 Democratic presidential primaries, Hillary Clinton and Senator Bernie Sanders were criticized for defining the American middle class as any household that makes $250,000 or less a year. At the time, the U.S. Census Bureau reported that the median income was $53,657 and the mean income was $75,738 for 2014.6 Would you agree or disagree with the Democratic candidates? How would you explain the median and mean income measures to the candidates?