A+ solutions

by | Feb 26, 2025 | Statistics

Hypothesis Testing 1.University of is concerned that out of state students may be receiving lower grades than students. Two independent random samples have been selected: 175 observations from population 1 (Out of state students) and 187 from population 2 ( students)....

WEB CALCULATOR EXERCISE 1

by | Feb 26, 2025 | Statistics

Descriptive Statistics 1. The table below presents data for a sample of people who completed a religious survey. Age Gender Denomination Church Attendance 56 1 7 4 46 2 6 5 49 2 6 5 49 1 1 5 27 2 9 5 51 1 4 2 47 2 2 3 67 1 5 4 49 2 2 6 33 1 12 6 55 2 9 5 40 1 7 5 62 1...

WEB CALCULATOR EXERCISE 2

by | Feb 26, 2025 | Statistics

Web Calculator Exercise 2 Z test & One sample t-test 1. A researcher is interested in whether students who attend private high schools have higher average SAT Scores than students in the general population. A random sample of 90 students at a private high school...

WEB CALCULATOR EXERCISE 3

by | Feb 26, 2025 | Statistics

Web Calculator Exercise 3 T test for independent groups and dependent groups (Two-group designs) 1. An LU professor is interested in whether there is a difference between undergraduate students and graduate students in the amount of time spent praying each day. The...

WEB CALCULATOR EXERCISE 4

by | Feb 26, 2025 | Statistics

Web Calculator Exercise 4 Non-parametric tests (Chi-square tests, Wilcoxon-rank-sum & Wilcoxon signed-ranks tests) Note: When searching for a web calculator for the Wilcoxon-rank-sum test, please be aware that this test is also called the “Mann-Whitney U test”....

WEB CALCULATOR EXERCISE 5

by | Feb 26, 2025 | Statistics

Web Calculator Exercise 5 ANOVAs 1. A researcher is interested in comparing the effectiveness of three different kinds of therapy for anger problems. Eight participants are randomly assigned to three treatment conditions: Cognitive Therapy (CT), Cognitive-Behavioral...

Statistics

by | Feb 26, 2025 | Statistics

Help with Statistics project: probabilityA survey was done where a random sample of people 18 and over were asked if they preferred comedies, dramas, or neither. table: movie type 18-24 25-34 35 and older comedy 20 25 10 drama 20 20 30 neither 10 15 15 A person is...

MAT540 – Final Exam

by | Feb 26, 2025 | Statistics

Question 1In a 0-1 integer programming problem involving a capital budgeting application (where xj = 1, if project j is selected, xj = 0, otherwise) the constraint x1 – x2 ? 0 implies that if project 2 is selected, project 1 cannot be selected.Answer· Question 2In a...