Question

8. Suppose that in a particular sample, the mean is 50 and the standard deviation is...

8. Suppose that in a particular sample, the mean is 50 and the standard deviation is 10. What is the Z score associated with a raw score of 68? Calculate and illustrate it in a curve. (1 Point)

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
8. Suppose that in a particular sample, the mean is 50 and the standard deviation is...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • A population has a mean of 200 and a standard deviation of 50.Suppose a random...

    A population has a mean of 200 and a standard deviation of 50. Suppose a random sample of 100 people is selected from this population. What is the probability that the sample mean will be within +/- 5 of the population mean? Hint: use the z-score.

  • Assume you have a normal distribution with a mean of 50 and a standard deviation of...

    Assume you have a normal distribution with a mean of 50 and a standard deviation of 10. What will the z-score be for the raw score "80"? -20 -3 3 . 20

  • Suppose a set of data has a sample mean of 106 and a sample standard deviation...

    Suppose a set of data has a sample mean of 106 and a sample standard deviation of 19.8. What is the Z-score for the value 122.0? Round the 2-score to two decimal places. Your Answer: Answer

  • A population has a mean of 400 and a standard deviation of 50. Suppose a sample...

    A population has a mean of 400 and a standard deviation of 50. Suppose a sample of size 100 is selected and I is used to estimate u. Use z-table. a. What is the probability that the sample mean will be within +9 of the population mean (to 4 decimals)? b. What is the probability that the sample mean will be within +13 of the population mean (to 4 decimals)? A population proportion is 0.3. A sample of size 300...

  • Consider a sample with a mean equal to 40 and a standard deviation equal to 12....

    Consider a sample with a mean equal to 40 and a standard deviation equal to 12. Calculate the z-scores for the following values. a) 53 b) 68 c) 33 d) 9 (Round to two decimal places as needed.) a) The z-score of 53 is b) The z-score of 68 is (Round to two decimal places as needed.) c) The z-score of 33 is . (Round to two decimal places as needed.) (Round to two decimal places as needed.) d) The...

  • The mean age at first marriage for respondents in a survey is 23.33, with a standard...

    The mean age at first marriage for respondents in a survey is 23.33, with a standard deviation of 6.13. The Z score associated with a particular age at first marriage is .35. If the proportion of the area between this particular age at first marriage and the mean is 0.14, what proportion of respondents experienced their first marriage earlier than this age? Illustrate your answer in a normal curve.

  • 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...

  • Find the sample mean and sample standard deviation of your data. What is the Z score?...

    Find the sample mean and sample standard deviation of your data. What is the Z score? Pick three bills from the last 12 months and change the values into z-scores. What does the z-score tell you about that particular month? Between what two values would be considered a normal bill? Remember, being within 2 Standard Deviations is considered normal. Are any of your bills in the last 12 months unusual? Very unusual? Are there times when you would accept an...

  • Suppose X is a normal random variable with mean u = 50 and standard deviation o...

    Suppose X is a normal random variable with mean u = 50 and standard deviation o = 11. (a) Compute the z-value corresponding to X = 36. (b) Suppose the area under the standard normal curve to the left of the Z-value found in part (a) is 0.1016. What is the area under the normal curve to the left of X = 36? (c) What is the area under the normal curve to the right of X = 36? (a)...

  • 1. What is the mean of a binomial distribution with n = 8 trials and p...

    1. What is the mean of a binomial distribution with n = 8 trials and p = 0.15? 2. The area under a normal curve represents the: probability of an event occurring Z-score standard deviation mean 3. A manufacturing process outputs parts having a normal distribution with a mean of 30 cm and standard deviation of 2 cm. From a production sample of 80 parts, what proportion of the sample can be expected to fall between 28 and 32 cm?...

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