A functional dexterity test was given to children of different ages where the time needed to complete the test was recorded in seconds when using the non-dominant hand.  The test involved turning over 16 pegs as fast as possible when following a certain sequence.  The data was used to obtain the Minitab output found below. Classify each statement below as true or false.

In a survey of 1000 adults, respondents were asked whether they currently had a child in college or not (college status), and whether they thought the loan obligation for most college students was too high, about right, or too little. College Status Too High About Right Too Little Total Child in College 350  80   10  440 No Child in College 250 200 110  560 Total 600 280 120 1000 Among those adults with a child in college, what percent think the loan obligation is about right?

A random sample of 230 students in STAT 200 were asked whether or not they have ever been in a pedestrian accident while using technology. Forty six of these 230 STAT 200 students answered “yes.” The results are summarized in the Minitab output found below.   Using the provided 95% confidence interval, which is the correct interpretation? When considering STAT 200 students while using technology, we are 95% confident that the:

Research Question: Is there evidence that, on the average, males miss more classes in a semester for alcohol-related reasons when compared to females? The parameter of interest is a [answer1]. To answer this question, we should [answer2].  

Researchers surveyed 50 students (group 1) sitting in the back half of the classroom and 15 students (group 2) sitting in the front half of the classroom and recorded their GPA.  The goal of the study was to see if, on average, the students that sat in the back half of the classroom have lower GPAs than those that sat in the front half. The sample statistic is -0.170 (using back minus front) with standard error 0.062.  The p-value is 0.032. Complete the statements below: Using a significance level of 0.05, the researchers should [answer1] the null hypothesis. It is possible that they have committed a type [answer2] error.

:Assume a researcher asks 125 Penn State students the following two questions   How do you typically commute to class from your home? (walk, bike, take bus, drive) Are you an only child?  (yes, no) The responses are summarized below. Yes    No    Total Walk 25 35 60 Bike 6 12 18 Take the bus 4 18 22 Drive 10 15 25 Total 45 80 125 When considering ‘Yes’ and ‘Bike’,  the correct calculation for the expected count is [answer1]. The correct interpretation of the expected count is: If the two variables are [answer2], we would expect that around [answer3] of children who [answer4] an “only child” to [answer5] when commuting from home to class.

You have reached the end of the final exam after 42 questions. You will not be able to review the final exam on-line.  Don’t hit submit until you are ready Best wishes with all future endeavors.

Fifteen students were asked how many nights a month do they study.  The responses are listed in the table found below.  Student 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Number of nights study/month 4 5 6 10 12 14 18 20 20 20 22 23 24 25 26 The mean is 16.6 nights/month Match the attribute of the sample with the appropriate answer.   

A researcher asked random samples of 50 kindergarten teachers and 50 12th grade teachers how much of their own money they spent on school supplies in the previous school year. They wanted to see if teachers at one grade level spend more than teachers at the other grade level. In this study, it turns out that 12th grade teachers generally earn more money than kindergarten teachers. In this study, the  ‘income of the teacher’ is an example of a(n): [answer1] variable.

Suppose we wish to know if females at a university are less likely to believe in extraterrestrial life than males.  The hypothesis test to answer the research question is a [answer1] test for the [answer2].