DQ questions

· First Dq questions- How is the alternate hypothesis related to the null hypothesis?

· Explain the difference between a one-tailed test and a two- tailed test.

· Second Dq Questions-What does a Z score tell you?

· What does it mean if the Z score has a negative sign?

· Third DQ questions-Explain the eight characteristics of a normal distribution.

· Explain why converting raw scores to z scores is helpful in understanding data.

· Fourth DQ questions-Explain the concept of a sampling distribution.

· Identify three characteristics of the sampling distribution of the sample mean.