Answer to Question #334266 in Statistics and Probability for Samantha

Question

APPLICATION:

an experimental study was conducted by a researcher to

determine if a new time slot has an effect on the performance

of pupils in mathematics. Fifteen randomly selected learners

participated in the study. Toward the end of the investigation, a

standardized assessment was conducted. The sample mean x̄= 75 and s=5. In standardization of the test, the mean was

65 and standard deviation was 8. Based on the evidence at

hand, is the new time slot effective? Use α = 0.05.