In a study of how students give directions, forty volunteers were given the task ofexplaining to another person how to reach a destination. Researchers measured thefollowing five aspects of the subjects’ direction-giving behavior:• whether a map was available or if directions were given from memory without a map,• the gender of the direction-giver,• the distances given as part of the directions,• the number of times directions such as “north” or “left” were used,• the frequency of errors in directions. Identify each of the variables in this study, and whether each is quantitative orqualitative. For each quantitative variable, state whether it is discrete or continuous. Was this an observational study or an experimental study? Explain your answer.

A study is conducted in which people were asked whether they agreed or disagreed with the statement that there is only one true love for each person. The table below gives a two-way table showing the answers to this question as well as the education level of the respondents. A person's education is categorized as HS (high school degree or less), Some (some college), or College (college graduate or higher). Is the level of a person's education related to how the person feels about one true love? If there is a significant association between these two variables, describe how they are related. chi-square statistic = i 103.2 Agree 361 Disagree 555 Don't know HS Some College Total Total 163 469 18 28 197 786 30 934 660 1013 721 1810 76 2607 Table 1 Educational level and belief in One True Love Round your answer for the chi-square statistic to one decimal place, and your answer for the p-value to three decimal places.

A drug trial had  161  participants. A survey was done to gather information about the participants' experiences with side effects. The table below gives the results for two possible side effects.     Number of participants Had drowsiness 84 Had nausea 67 Had both drowsiness and nausea 39   Construct a Venn diagram illustrating these results. Then answer the questions.

Public relations staff members at State U. phoned 850 local residents.  After identifying themselves, the callers asked the survey participants their ages, whether they had attended college, and whether they had a favorable opinion of the university.  The official report to the university's directors claimed that, in general, people had very favorable opinions about the university. a) Summarize the Who and What of these data with a complete sentence. b) Identify the variables, classify each as categorical or quantitative, and specify the units if relevant.

I need help with number 5 only please!

Which of the following is NOT true of a bar chart? A) The bars can be either horizontal or vertical. B) It is used for numerical data. C) It can show either frequency or relative frequency. D) It is used for categorical data

Assume that you are employed by a mobile phone company and you want to characterize costumers on the basis of their mobile-phone activity. Which type of network would be most useful for representing the mobile-phone data of your company? Select one: a. Directed,Unweighted b. Directed,Weighted c. Simple d. Undirected, Weighted

I need help with 4, 5, 6 and 7 plz.

List what the a) independent and b) dependent variables are and the c) experimental and d) control group are in the following two experimental studies.   A researcher wanted to test if hypnotism could reduce or stop smoking habits. One group of participants went under a hypnotic process and the other group was spoken to, but not hypnotized.

Even though Puerto Rico is a commonwealth of the United States, there are many cultural differences between the states on the continent and the island of Puerto Rico. These differences include the way consumers handle problems with purchases. Two researchers surveyed owners of DVD players in the Northeast United States and in Puerto Rico. They asked those who had experienced problems with their DVD players whether they complained. The results are given in the table below. Location Complained? United States Puerto Rico No 94 33 Yes 330 64