The article “Men, Women at Odds on Gun Control” (Cedar Rapids Gazette, September 8, 1999) included the following statement: “The survey found that 56% of American adults favored stricter gun control laws. Sixty-six percent of women favored the tougher laws, compared with 45% of men.” These figures are based on a large telephone survey conducted by Associated Press Polls. If an adult is selected at random, are the events selected adult is female and selected adult favors stricter gun control independent events? Explain.

2) A researcher suspects that there is a relationship between substance use and sexual activity among single college students.  What statistical analysis tests would you use for this?

Would observations or interviews be more appropriate to research the following topic?People's behaviors at dog parks.O ObservationO Interviews

Are birthdays "evenly distributed" throughout the year, or are they more common during some parts of the year than others? Owners of a children's toy store chain in the Northwest asked just this question. Some data collected by the chain are summarized in the table below. The data were obtained from a random sample of 190 people. The birthdate of each person was recorded, and each of these dates was placed into one of four categories: winter (December 21-March 20), spring (March 21-June 20), summer (June 21-September 20), and fall (September 21-December 20). The numbers in the first row of the table are the frequencies observed in the sample for these season categories. The numbers in the second row are the expected frequencies under the assumption that birthdays are equally likely during each season of the year. The bottom row of numbers gives the following value for each of the season categories. Answer the following to summarize the test of the hypothesis that birthdays are equally…

In an analysis of variance with 4 groups, each containing 12 respondents. Please calculate the between-group degrees of freedom.

The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender:   Opinion Female Male Almost no chance 120 94 Some chance but probably not 156 178 A 50-50 chance 427 498 A good chance 750 700 Almost certain 1176 770   How many individuals are described in this table? How many females were among the respondents? The percent of females among the respondents was about %. Your percent from the previous exercise is part of the marginal distribution of opinion about marriage. the conditional distribution of sex among adolescents with a given opinion. the marginal distribution of sex. What percent of females thought that they were almost certain to be married in the next 10 years?% Your percent from the previous exercise is part of the conditional distribution of sex among…

According to the National Center for Education Statistics, 43% of the college students work full time. A survey of 900 randomly selected college students is to be conducted. For such groups of 900, would it be unusual to get 735 college students who work fulltime?

One of the theories behind the large polling errors in 2016 election was the "shy Trump voter". According to this explanation, many respondents voted differently than what they told the pollsters. What type of bias does this phenomena introduce to the polls?  answer choices 1.Selection bias 2.Response bias 3.Non-response bias 4.Something else