Question

Question 3 options: Suppose a variable has a normal distribution with mean 10 and standard deviation...

Question 3 options:

Suppose a variable has a normal distribution with mean 10 and standard deviation 2. Use the Empirical Rule to calculate the approximate PERCENTAGE area.

What is the PERCENTAGE of values ABOVE 8?

Note: Enter X.XX AT LEAST ONE DIGIT BEFORE THE DECIMAL, TWO AFTER and round up. Thus, 7 is entered as 7.00, 3.5 is entered as 3.50, 0.3750 is entered as 0.38

| Enter PERCENTAGE in above blank with NO % sign.

|

Suppose a variable has a normal distribution with mean 10 and standard deviation 2. Use the Empirical Rule to calculate the approximate PERCENTAGE area.

What is the PERCENTAGE of values BELOW 8?

Note: Enter X.XX AT LEAST ONE DIGIT BEFORE THE DECIMAL, TWO AFTER and round up. Thus, 27 is entered as 27.00, 3.5 is entered as 3.50, 0.3750 is entered as 0.38

|Enter PERCENTAGE in above blank with NO % sign.

|

Suppose a variable has a normal distribution with mean 10 and standard deviation 2. Use the Empirical Rule to calculate the approximate PERCENTAGE area.

What is the PERCENTAGE of values is contained within the interval (6, 14)?

Note: Enter X.XX AT LEAST ONE DIGIT BEFORE THE DECIMAL, TWO AFTER and round up. Thus, 27 is entered as 27.00, 3.5 is entered as 3.50, 0.3750 is entered as 0.38

|Enter PERCENTAGE in above blank with NO % sign.

|

Suppose a variable has a normal distribution with mean 10 and standard deviation 2. Use the Empirical Rule to calculate the approximate PERCENTAGE area.

What is the PERCENTAGE of values is contained BELOW 6?

Note: Enter X.XX AT LEAST ONE DIGIT BEFORE THE DECIMAL, TWO AFTER and round up. Thus, 27 is entered as 27.00, 3.5 is entered as 3.50, 0.3750 is entered as 0.38

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Suppose a variable has a normal distribution with mean 12 and standard deviation 2. Use the...
Suppose a variable has a normal distribution with mean 12 and standard deviation 2. Use the Empirical Rule to calculate the approximate PERCENTAGE area. What is the PERCENTAGE of values ABOVE 10? Note: Enter X.XX AT LEAST ONE DIGIT BEFORE THE DECIMAL, TWO AFTER and round up. Thus, 7 is entered as 7.00, 3.5 is entered as 3.50, 0.3750 is entered as 0.38 |Enter PERCENTAGE in above blank with NO % sign. | Suppose a variable has a normal distribution...
Assume Z is a standard normal random variable with mean 0 and variance 1. Find P(Z<0.44)?...
Assume Z is a standard normal random variable with mean 0 and variance 1. Find P(Z<0.44)? Area below 0.44? Note: Enter X.XX AT LEAST ONE DIGIT BEFORE THE DECIMAL, TWO AFTER and round up. Thus, 27 is entered as 27.00, 3.5 is entered as 3.50, 0.3750 is entered as 0.38 | | Assume Z is a standard normal random variable with mean 0 and variance 1. Find P(Z>-1.76)? Area above -1.76? Note: Enter X.XX AT LEAST ONE DIGIT BEFORE THE...
1- Assume the time to complete a task has a normal distribution with mean 20 min....
1- Assume the time to complete a task has a normal distribution with mean 20 min. and standard deviation 4 min. Find the proportion of times that are BETWEEN 15 and 25 minutes? Note: Enter X.XX AT LEAST ONE DIGIT BEFORE THE DECIMAL, TWO AFTER and round up. Thus, 7 is entered as 7.00, 3.5 is entered as 3.50, 0.3750 is entered as 0.38 2- Assume the time to complete a task has a normal distribution with mean 20 min....
1- The accuracy of a potato chip bag filling machine was studied. A simple random sample...
1- The accuracy of a potato chip bag filling machine was studied. A simple random sample of 12 bags had a sample mean fill weight of 8.12 oz. and a sample standard deviation of 0.1 oz. The distribution of the fill weights is assume NORMAL. Find a 99% confidence interval LOWER LIMIT for the population mean fill weight. Note: Enter X.XX AT LEAST ONE DIGIT BEFORE THE DECIMAL, TWO AFTER and round up. Thus, 27 is entered as 27.00, 3.5...
1- A simple random sample of 200 students found that 38 read the newspaper on a...
1- A simple random sample of 200 students found that 38 read the newspaper on a daily basis. The paper wanted to test whether this proportion of student readers was LESS THAN a target rate of 0.25 of readers. Use a 0.01 significance level. Enter the value of the Test Statistic. Note: Enter X.XX AT LEAST ONE DIGIT BEFORE THE DECIMAL, TWO AFTER and round up. Thus, 27 is entered as 27.00, 3.5 is entered as 3.50, 0.3750 is entered...
From a sample of 487 teenagers, a total of 385 had their pictures online. Find the...
From a sample of 487 teenagers, a total of 385 had their pictures online. Find the best estimate of the proportion of teenagers having online pictures. Note: Enter X.XXX AT LEAST ONE DIGIT BEFORE THE DECIMAL, THREE AFTER and round up. Thus, 27 is entered as 27.000, 3.5638 is entered as 3.564, 0.3754 is entered as 0.375 | | From a sample of 487 teenagers, a total of 385 had their pictures online. Find the standard deviation of the best...
From a sample of 487 teenagers, a total of 385 had their pictures online. Find the...
From a sample of 487 teenagers, a total of 385 had their pictures online. Find the best estimate of the proportion of teenagers having online pictures. Note: Enter X.XXX AT LEAST ONE DIGIT BEFORE THE DECIMAL, THREE AFTERand round up. Thus, 27 is entered as 27.000, 3.5638 is entered as 3.564, 0.3754 is entered as 0.375 | | From a sample of 487 teenagers, a total of 385 had their pictures online. Find the standard deviation of the best estimate...
a. If X is a normal random variable with mean 10, and if the probability that...
a. If X is a normal random variable with mean 10, and if the probability that X is less than 11.54 is .72 then what is the standard deviation of X? 1.75 3.50 4.20 12.25 b. If the standard deviation of a population is 36 and we take a sample of size 9, then the standard error (the standard deviation of the sample mean) is 12.00 3.00 108.00 4.00 c. According to the empirical rule, in a normal distribution about...
Q1-. A normal distribution has a mean of 15 and a standard deviation of 2. Find...
Q1-. A normal distribution has a mean of 15 and a standard deviation of 2. Find the value that corresponds to the 75th percentile. Round your answer to two decimal places. Q2-.Tyrell's SAT math score was in the 64th percentile. If all SAT math scores are normally distributed with a mean of 500 and a standard deviation of 100, what is Tyrell's math score? Round your answer to the nearest whole number. Q3-.Find the z-score that cuts off an area...
If a variable has a distribution that is? bell-shaped with mean 23 and standard deviation 3?,...
If a variable has a distribution that is? bell-shaped with mean 23 and standard deviation 3?, then according to the Empirical? Rule, what percent of the data will lie between 14 and 32??