subject
Mathematics, 01.06.2021 18:40 laceybabin1952

A university runs a new class designed to improve the Freshman experience. The hypothesis is that participation in the new class will improve attitudes toward school. To evaluate the hypothesis, the research team uses a test statistic to compare the sample mean from a sample to the mean of a national norm group. The assumed population mean (the expected mean if the null is true) is 20, the mean from a sample of 25 students is 22, and the standard error is 4. What is the value of the test statistic from this analysis

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 17:30
Astudent survey asked: "how tall are you (in inches)? " here's the data: 67, 72, 73, 60, 65, 86, 72, 69, 74 give the five number summary. a. median: 73, mean: 70.89, iqr: 5, min: 60, max: 74 b. 60, 66, 72, 73.5, 86 c. 60, 67, 72, 73, 74 d. 0, 60, 70, 89, 74, 100
Answers: 3
question
Mathematics, 22.06.2019 00:00
What is mean median mode and range?
Answers: 2
question
Mathematics, 22.06.2019 00:30
Measure a and b and find their sum. how are the angles related?
Answers: 3
question
Mathematics, 22.06.2019 01:30
Which of the following statements is a true conclusion that can be made from the scaled bargraph?
Answers: 1
You know the right answer?
A university runs a new class designed to improve the Freshman experience. The hypothesis is that pa...
Questions
question
Mathematics, 15.12.2020 17:50
question
Mathematics, 15.12.2020 17:50
question
English, 15.12.2020 17:50
question
Arts, 15.12.2020 17:50
question
Spanish, 15.12.2020 17:50
question
Mathematics, 15.12.2020 17:50
Questions on the website: 13722367