Consider the hypothetical study described below. Based solely on the information given, do you have reason to question the results of the study? Select all that appi Sociologists studying domestic violence circulate a questionnaire asking each respondent if she or he has ever abused a spouse or partner. a Yes, there is reason. The people receiving the questionnaire might not be representative of the population. b. No, there is no reason. It is unlikely that there are any confounding variables in the study C. No, there is no reason. The goal of the study is clear. d. Yes, there is reason. Self-reporting is often not accurate. e. No, there is no reason. There is no bias in the study Yos there

A paper investigated the driving behavior of teenagers by observing their vehicles as they left a high school parking lot and then again at a site approximately  1 2  mile from the school. Assume that it is reasonable to regard the teen drivers in this study as representative of the population of teen drivers. MaleDriver FemaleDriver 1.4 -0.2 1.2 0.5 0.9 1.1 2.1 0.7 0.7 1.1 1.3 1.2 3 0.1 1.3 0.9 0.6 0.5 2.1 0.5 (a) Use a .01 level of significance for any hypothesis tests. Data consistent with summary quantities appearing in the paper are given in the table. The measurements represent the difference between the observed vehicle speed and the posted speed limit (in miles per hour) for a sample of male teenage drivers and a sample of female teenage drivers. (Use ?males − ?females. Round your test statistic to two decimal places. Round your degrees of freedom down to the nearest whole number. Round your p-value to three decimal places.) t =   df =…

Daphne mails a survey to 50,000 recent college graduates across America.  The responses indicate overwhelmingly that graduates felt their education helped secure them a better job, but only 6% of the surveys were returned.  What type of bias is most strongly present in Daphne’s study? A.Self-Interest Study B Voluntary Response Bias C Loaded questions D Perceived lack of anonymity E. Response Bias F

Suppose you have a data set about whether a person received a new drug or a sugar pill and the number of hours of deep sleep. a. Which of the sources of data best describe the data set? b. Is the data set based on a sample or a population? ... a. Choose the correct answer below. O A. These data are results of an observational study. O B. These data are collected by ongoing business activities. OC. These data are outcomes of a designed experiment. O D. These data are responses from a survey. O E. These data are distributed by an organization. b. Choose the correct answer below. O A. The data was taken based on a population. O B. The data was taken based on a sample. O C. There is no way to know whether the data was taken based on a sample or a population.