STAT 151 Questions
Many colleges and universities charge more tuition for students who are in professional programs, such as Nursing, Engineering, Law, and Business. To measure support for differential tuition fees, a student asked a question in the two ways shown below. Complete parts a through c. 1. With persuasion: \"Students in programs such as Engineering, Law, and Business typically get high-paying jobs after they graduate. Do you support or oppose students in these programs paying more tuition because they have higher earning potential?" 2. Without persuasion: "Do you support or oppose students in these programs paying more tuition?" a Click the icon to view a breakdown of the student's data. a. What percentage of those persuaded oppose differential tuition fees? |:|% (Type an integer or decimal rounded to one decimal place as needed.) What are statistics sometimes called? Choose the correct answer below. O Estimators Parameters Samples O PopulationsA researcher has designed a survey in which the questions asked do not produce a true answer. What is this an example of? Choose the correct answer below. 0 Measurement bias 0 Sampling bias 0 Voluntary response bias 0 Nonresponse bias a. If a rifleman's gunsight is adjusted incorrectly, he might shoot bullets consistently close to 60 centimetres left of the bull's-eye target. Draw a sketch of the target with the bullet holes. Does this show lack of precision or bias? b. Draw a second sketch of the target if the shots are both unbiased and precise (have little variation). The rifleman's aim is not perfect, so your sketches should show more than one bullet hole. a. Draw a sketch of the target with the bullet holes consistently close to 60 centimetres left of the bull's-eye target. Choose the correct target below. Note that the diameter of the target is 240 centimetres. O A. O B. O C. OD. + + + O O OA large collection of one-digit random numbers should have about 50% odd and 50% even digits because ve of the ten digits are odd (1, 3, 5, 7, and 9) and ve are even (0, 2, 4, 6, and 8). a. Find the proportion of odd-numbered digits in the following lines from a random number table. Count carefully. 6911319022 86103% 24269 52961 93132 b. Does the proportion found in part a represent 6 (the sample proportion) or p (the population proportion)? c. Find the error in this estimate, the difference between 6 and p (or B - p). a. The given random number table consists of |:|% odd-numbered digits. (Round to two decimal places as needed.) According to a candy company, packages of a certain candy contain 17% orange candies. Suppose we examine 300 randomly selected candies. a. What percentage of the sample should we expect to be orange candies? b. What is the standard deviation? c. Use your answers to ll in the blanks below. We expect _% of orange candies, give or take %. a. We should expect D% of the candies in the sample to be orange. (Type an integer or a decimal. Do not round.)
