Briefly and concisely describe in your own words the followi

Briefly and concisely describe in your own words the following:
a. The zscore and why it is important in inferential statistics. Give at least 2
reasons.
b. Characteristics of the normal distribution curve and how it is used in
probability problems. Give at least 2 uses.
c. The central limit theorem and the standard error of the mean.
d. Why there should be a Null hypothesis (Ho) in research design. Give at least 1
reason.
e. Why one commits a Type I error. Give at least 1 reason.

Solution

The zscore and why it is important in inferential statistics. Give at least 2
reasons.

it is important because z score is the standard variable for normal distribution

and also because normal distribution is the mother of distribution

Characteristics of the normal distribution curve and how it is used in
probability problems

mean = 0

SD = 1

c. The central limit theorem and the standard error of the mean.

applyies for all distribution with unkown distribution

Why there should be a Null hypothesis (Ho) in research design

because that is the hypothesis that we need to prove if it is false or true

Why one commits a Type I error

because you reject Ho when Ho in fact is true