Author Question: You can be percent confident that an interval that includes the values between 1.96 standard errors ... (Read 148 times)

mmm · **on:** Aug 2, 2018

You can be percent confident that an interval that includes the values between 1.96 standard errors below the sample mean and 1.96 standard errors above the sample mean will include the population mean.

a. 34
b. 68
c. 95
d. 99

Question 2

A psychologist manipulates the type of instructions participants are given when performing a task.

One group of participants is told their performance on a task is affected only by chance, whereas a second group of participants is told their performance on the task relates to their ability levels. The research method used by this psychologist is called . a. experimentation
b. naturalistic observation
c. quasi-experimentation
d. archival records research