Psychology-statistics- need it today 2024

Psychology-statistics- need it today 2024

Psychology-statistics- need it today 2024.

Psychology Assignment Help

1. 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.

Average test score earned

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?Use the five steps of      hypothesis testing.Figure the confidence      limits for the 95% confidence interval.