Using a computer or calculator that provides proportions, Ask an Expert

Statistics

Using a computer or calculator that provides proportions falling below a specified z-score, determine the approximate proportion for each of the following situations. In each case, assume the values are approximately bell-shaped.

a. The proportion of SAT scores falling below 450 for a group with a mean of 500 and a standard deviation of 100.

b. The proportion of boys with heights below 36.5 inches for a group with mean height of 34 inches and standard deviation of 1 inch.

c. The proportion of a large class that scored below you on a test for which the mean was 75, the standard deviation was 8, and your score was 79.

d. The proportion of a large class that scored below you on a test for which the mean was 75, the standard deviation was 4, and your score was 79.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92209389

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

For planning purposes truss manufacturers must try to

For planning purposes, truss manufacturers must try to predict the number of hurricanes that will hit the eastern seaboard of the United States in any given year. If this area is hit with an average of 6 hurricanes per y ...

A coin is flipped five times in an experiment if x is the

A coin is flipped five times in an experiment. If x is the number of heads that turn out in the experiment, what is the set of possible values of variable x?

How do you calculate true population proportion if your

How do you calculate true population proportion if your defective sample is too small? For example, if you have 50 and defect is 4. Please look below for more details

In a survey of 100 people 40 were casual drinkers

In a survey of 100 people, 40 were casual drinkers (event D ), and 60 did not drink (event D ' ). Of the ones who drank, 6 had minor headaches. Of the non-drinkers, 9 had minor headaches. Let D represent set of surv ...

During a certain week the mean price of gasoline was 2719 a

During a certain week the mean price of gasoline was $2.719 a gallon. A ronadom sample of 32 stations is drwn. What is the probability that the mean price was between $2.695 and $2.716. Assume o=$0.048.

Regression equations can take the formin the spaces next to

Regression equations can take the form: In the spaces next to the items below place the letter corresponding symbol from the below equation A. Y B. b0 C. b1 D. X 1. Regression line slope: 2. Predicted value: 3. Independe ...

A recent survey of college seniors evaluated how the

A recent survey of college seniors evaluated how the students view the "real world" that they are about to enter. One question asked the seniors to evaluate the future job market on a 10-point scale from 1 (dismal) to 10 ...

How to calculate the sample space problem consider the

How to calculate the sample space? Problem: Consider the experiment of drawing two cards from a deck in which all picture cards have been removed and adding their values (with ace = 1)

When you purchased your house you took out a 30-year

When you purchased your? house, you took out a? 30-year annual-payment mortgage with an interest rate of 7% per year. The annual payment on the mortgage is 16,803. You have just made a payment and have now decided to pay ...

Anbspbbb-rated corporate bond has a yield to maturity of

A? BBB-rated corporate bond has a yield to maturity of 11.2%. A U.S. treasury security has a yield to maturity of 9.9%. These yields are quoted as APRs with semiannual compounding. Both bonds pay? semi-annual coupons at ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert