subject
Mathematics, 26.07.2020 01:01 zoeyjorschumb17

6. A psychology professor of a large class became curious as to whether the students who turned in tests first scored differently from the overall mean on the test. The overall mean score on the test was 75 with a standard deviation of 10; the scores were approximately normally distributed. The mean score for the first 20 students to turn in tests was 78. Using the .05 significance level, was the average test score earned by the first 20 students to turn in their tests significantly different from the overall mean?

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 14:30, sanchezvianna55
Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2
Answers: 1
image
Mathematics, 21.06.2019 19:00, love123jones
Explain why the factor 1.5 is broke. into two numbers in the model.
Answers: 3
image
Mathematics, 21.06.2019 23:50, dbag1162
The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation
Answers: 3
image
Mathematics, 22.06.2019 00:00, scottmn
What expression is equivalent to (84+16)
Answers: 1
You know the right answer?
6. A psychology professor of a large class became curious as to whether the students who turned in t...

Questions in other subjects:

Konu
Mathematics, 15.08.2021 23:00
Konu
History, 15.08.2021 23:00