[Answered] A certain raw score equals 12 and has a percentile rank of 30. The standard deviation is 2.93. What ...

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audragclark

Hero Member
Posts: 579

on: Jun 20, 2018

A certain raw score equals 12 and has a percentile rank of 30. The standard deviation is 2.93. What is the mean of the distribution?

What will be an ideal response?

Question 2

Failing to reject the null hypothesis when the research hypothesis is true is

A) effect size.
B) power.
C) a Type I error.
D) a Type II error.

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1_Step_At_ATime

Sr. Member
Posts: 342

Reply #1 on: Jun 20, 2018

Answer to Question 1

M=13.52

Answer to Question 2

D

audragclark

Hero Member
Posts: 579

Reply #2 on: Jun 20, 2018

Thank you!

1_Step_At_ATime

Sr. Member
Posts: 342

Reply #3 on: Jun 20, 2018

Happy to help

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