Question 1

Find the Area under the Standard Normal Curve
-Find the area under the standard normal curve to the right of $z = - 1.25$.

Accepted Answer

A)  $0.8944$ 
B)  $0.5843$ 
C)  $0.6978$ 
D)  $0.7193$ 
A)  $0.8944$ 
B)  $0.5843$ 
C)  $0.6978$ 
D)  $0.7193$

Question 2

Find z-scores for a Given Area
-Find the $z$-scores for which $98 \%$ of the distribution's area lies between $- z$ and $z$.

Accepted Answer

A)  $( - 2.33,2.33 )$ 
B)  $( - 1.645,1.645 )$ 
C)  $( - 1.96,1.96 )$ 
D)  $( - 0.99,0.99 )$ 
A)  $( - 2.33,2.33 )$ 
B)  $( - 1.645,1.645 )$ 
C)  $( - 1.96,1.96 )$ 
D)  $( - 0.99,0.99 )$

Question 3

Provide an appropriate response
-Suppose a uniform random variable can be used to describe the outcome of an experiment with the outcomes ranging from 10 to 70. What is the probability that this experiment results in an outcome less than 20

Accepted Answer

A)  0.17 
B)  0.13 
C)  0.22 
D)  1 
A)  0.17 
B)  0.13 
C)  0.22 
D)  1

Find the Area under the Standard Normal Curve -Find the area under the standard normal curve to the right of $z = - 1.25$ .

Find z-scores for a Given Area -Find the $z$ -scores for which $98 \%$ of the distribution's area lies between $- z$ and $z$ .

Provide an appropriate response -Suppose a uniform random variable can be used to describe the outcome of an experiment with the outcomes ranging from 10 to 70. What is the probability that this experiment results in an outcome less than 20

Data Collection

Creating Tables and Drawing Pictures of Data

Numerically Summarizing Data

Describing the Relation Between Two Variables

Probability

Discrete Probability Distributions

Sampling Distributions

Estimating the Value of a Parameter Using Confidence Intervals

Hypothesis Tests Regarding a Parameter

Inference on Two Samples

Inference on Categorical Data

Comparing Three or More Means

Inference of the Least-Squares Regression Model and Multiple Regression

Nonparametric Statistics

Filters

Exam 7: The Normal Probability Distribution

Find the Area under the Standard Normal Curve -Find the area under the standard normal curve to the right of z=−1.25z = - 1.25z=−1.25 .

Find z-scores for a Given Area -Find the zzz -scores for which 98%98 \%98% of the distribution's area lies between −z- z−z and zzz .