ZuoTi.Pro
Question

Question 17 Given the following data: Normal distribution Mean 3 Standard deviation -1 Determine number of samples out of 100 samples taken that fall within plus - minus 2 standard deviations

business   economics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

For a normal distribution, it is established that the observations like within mean plus or minus two deviations range with 95% probability. Therefore, out of 100 samples, 95 samples are likely to fall within plus minus two standard deviations.

0 0
Add a comment
Know the answer?
Add Answer to:
Question 17 Given the following data: Normal distribution Mean 3 Standard deviation -1 Determine number of...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • 1. X has a normal distribution with the given mean and standard deviation. Find the indicated...

    1. X has a normal distribution with the given mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) μ = 41, σ = 20, find P(35 ≤ X ≤ 42) 2. Find the probability that a normal variable takes on values within 0.9 standard deviations of its mean. (Round your decimal to four decimal places.) 3. Suppose X is a normal random variable with mean μ = 100 and standard deviation σ = 10....

  • For each of the following, find the mean and standard deviation of the sampling distribution of...

    For each of the following, find the mean and standard deviation of the sampling distribution of the sample mean. State if the sampling distribution is normal, approximately normal, or unknown. a. The population is skewed right with a mean of 4 and a standard deviation of 6. Many samples of size 100 are taken. b. The population is normal with a mean of 61 and a standard deviation of 9. Many samples of size 900 are taken. c. The population...

  • Question 17 The mean of a distribution is 20 and the standard deviation is 2. At...

    Question 17 The mean of a distribution is 20 and the standard deviation is 2. At least what percentage of the values will fall between 10 and 30? Do not round the percentage. Blank 1 % Question 18 The exam scores of 20 students were recorded as follows: 73, 87, 62, 98, 43, 90, 88, 97, 100, 87, 95, 100, 56, 78, 100, 88, 70, 78, 63, 78 Find the MODE. If there is no mode, type No Mode. If...

  • In a normal distribution, the mean corresponds to: Standard Score: z = Percentile: Which of the...

    In a normal distribution, the mean corresponds to: Standard Score: z = Percentile: Which of the following statements are TRUE about the normal distribution? Check all that apply. A data value with z-score = -1.5 is located 1.5 standard deviations below the mean. The mean corresponds to the z-score of 1. The Empirical Rule only applies when a value is exactly 1, 2, or 3 standard deviations away from the mean. A z-score is the number of standard deviations a...

  • QUESTION 1 %ofthe data is within 1 standard deviation of the mean. %ofthe data is within...

    QUESTION 1 %ofthe data is within 1 standard deviation of the mean. %ofthe data is within Under a normal curve,- 2standard deviators otthe mean, and %ofthe data is within 3 standard deviations of the mean. QUESTION 2 when you have a skewed dstrbton ke tne one balow, the mean· ·essthan more than' orogual toj te median. QUESTION 3 Click Sove and Submit to save and submit Click Save All Ansvers to sqve all ansoers Save All Answers 5 B. command

  • Question 3: Consider the Standard Normal Distribution with mean 0 and standard deviation 1. Find the...

    Question 3: Consider the Standard Normal Distribution with mean 0 and standard deviation 1. Find the following. a) P (z>0.5) b) P(z 1.5) c) P (-0.49 < z1.5) Question 4: If you have a normal distribution with mean 14 and standard deviation of 2. What is P(x >16)? Question 5 Professor Hardy assumes the exam scores are normally distributed and wants to grade "on a curve." The mean score was 68, with a standard deviation of 9, If he wants...

  • Suppose the College frequency distribution of Salary represents a normal distribution, where the mean of professors'...

    Suppose the College frequency distribution of Salary represents a normal distribution, where the mean of professors' salaries is $80,000, and the standard deviation is $10,000, answer the following questions: iow of salariges within the range of the in us and minus thf salaries What is the percent of salaries within the range of the mean plus and minus 2 standard deviation What is the percent of salaries within the range of the mean plus and minus 3 standard deviation ·95.44%...

  • please Answer question 9 and 10 Question 4 answer is : The distribution is not normally...

    please Answer question 9 and 10 Question 4 answer is : The distribution is not normally distributed. Question 6 answer is : 80% Question 7 answer is : 92% Question 8 answer is : 98% Question: Using the computer (Excel), answer the following 10 questions: Assessing Normality Many times in statistics it is necessary to see if a set of data values is approximately normally dis- tributed. There are special techniques that can be used. One technique is to draw...

  • For a standard normal distribution, find the percentage of data that are within 1.5 standard deviations...

    For a standard normal distribution, find the percentage of data that are within 1.5 standard deviations from the mean. Group of answer choices Question 1 0.11 pts For a standard normal distribution, find the percentage of data that are within 1.5 standard deviations from the mean. 43.32% 86.64% 93.32% 6.68%

  • pick a number for mean and standard deviation generate 5 random numbers using a normal distribution...

    pick a number for mean and standard deviation generate 5 random numbers using a normal distribution and mean and standard deviation from (i) using your 5 numbers find the mean and the standard deviation of your data How far is your sample mean from your true mean? By 'far' I mean how many sample standard deviations. use the absolute value of distance here Repeat steps 2-4 1000 times. you should now have 1000 measures how far your sample mean is...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT