What is the relation between An B and AnB ? Justify your

What type of variable ( nominal or ordinal) is class?

An instructor was interested in how framing impacted her students' feelings about her grades. She randomly assiagned students to either receive positive ("This is an improvement") or negative ("You will still need to do a lot of work on this") feedback on an assignment. She further assigned students to a points lost (-10 points) or points gained (+90 condition) condition. After teach assignment was returned, she asked students to rate the fairness of their grades on a 10-point scale (0 = not fair at all, 10 = extremely fair).                                          Points Lost                          Points Gained                         Mean Positive Feedback               7.8                                            7.9                                   7.85 Negative Feedback              4.3                                            5.5                                   4.9 Mean                                    6.05                                           6.7…

A report just came out that stated that 21.3% of all Americans say that vanilla is their favorite ice cream, 23.1% say that chocolate is their favorite, 9.1% favor butter pecan, 10% favor strawberry, and the rest have other favorites. An ice cream shop owner thinks that her customers are not like the rest of America. The table below shows the results of 905 of her patrons' ice cream selections. What can be concluded at the a = 0.05 significance level? a. Complete the table by filling in the expected frequencies. Round your answers to the nearest whole number. Frequencies of Favorite Ice Cream Frequency Expected Frequency Outcome Vanilla 172 Chocolate 195 Butter Pecan 75 Strawberry 86 Other 377 b. What is the correct statistical test to use? Select an answer c. What are the null and alternative hypotheses? Но: Favorite ice cream and where the ice cream is purchased are independent. Favorite ice cream and where the ice cream is purchased are dependent. The distribution of favorite ice…

as one variable increases... A). the other variable decreases, and vice versa in a negatve statistical relationship B). the other variable increases and vice versa in a negative statistical relationship C). the other variable decreases and vice versa in a positive statistical relationship D). the other variable increases not vice versa in a negative statistical relationship

The residents of a housing development for senior citizens have completed a survey whereon they indicated how physically active they are and how many visitors they receive each week. Are these two varibles related for the 10 cases reported below?

What type of variable ( nominal or ordinal) is ideology?

From the following data of the daily wage of 500 workers of a factory find the number of workers : (a) whose wages are more than $ 370 but not more than $ 400. (b) whose wages are less than $ 370 but not less than $ 350. Wages not exceeding $ 300 =150 workers Wages not exceeding $ 350 = 180 workers Wages not exxceeding $ 400 = 240 workers Wages not exceeding $ 450 = 400 workers Wages not exceeding $ 500 = 500 workers

a.Consider the two variables, High School GPA and Average Annual Earnings in Adulthood. Which isdependent?b. Describe the relationship between High School GPA and Average Annual Earnings in Adulthood. Is thecorrelation positive or negative? (Write at least two sentences.)c. Does a person’s High School GPA cause them to earn a certain salary in adulthood? Explain.

The table below shows the amount of time each of the 15 students in an introductory philosophy class spent studying for the first exam, and the student's score on the exam out of 100. x (minutes spent studying) 50 100 10 90 0 0 20 120 150 30 40 0 80 120 50 y (score on exam in points) 65 61 44 59 51 30 56 88 54 56 57 51 42 97 48