Question

(1 point) Consider two normal distributions, one with mean 44 and standard deviation 77, the other...

(1 point) Consider two normal distributions, one with mean 44 and standard deviation 77, the other with mean −15−15 and standard deviation 77. Answer the following statements using true or false.

a) The two distributions have the same shape.
answer:

b) The two distributions are centered at the same place.
answer:

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
One normal distribution has a mean of 5 and a standard deviation of 2. A second...
One normal distribution has a mean of 5 and a standard deviation of 2. A second normal distribution has a mean of 6 and a standard deviation of 1. Which of the following statements is true? Select one: a. The dispersions of both distributions are the same. b. The width of the first distribution is wider than the second distribution. c. The central location of the first distribution is higher than the second distribution. d. The locations of both distributions...
A)We have a normal distribution with a mean of 77 and a standard deviation of 9....
A)We have a normal distribution with a mean of 77 and a standard deviation of 9. What is the Z (standardized) value of the value 72? Round to 3 decimal places. B)We have a normal distribution with a mean of 14 and a standard deviation of 2. What is the Z (standardized) value of the value 15? Round to 3 decimal places.
1.) Unlike normal distributions, the standard normal distribution is purely theoretical. Select one: True False 2.)...
1.) Unlike normal distributions, the standard normal distribution is purely theoretical. Select one: True False 2.) Patricia's vet told her that the z-score for her dog's weight range is 1.75 for huskies. Which of the following is the best interpretation of this standardized score? The weight of huskies (measured in pounds) is approximately normally distributed with a mean of 45 lbs and a standard deviation of 3 lbs. Select one: a. Patricia's dog's weight is 1.75 times above the average...
Which of the following are true about all normal distributions? Check all that apply A. They...
Which of the following are true about all normal distributions? Check all that apply A. They are defined by the mean and standard deviation. B. They are bimodal. C. They are categorically sharp. D. They are all centered at zero. The z-score corresponding to an observed value of a variable tells you the number of standard deviations that the observation is from the mean A. True B. False A positive z-score indicates that the observation is A. above the mean...
Suppose you have a sample size of 50 with a mean 77 and a population standard...
Suppose you have a sample size of 50 with a mean 77 and a population standard deviation of 8.3. Based on this, construct a 95% confidence interval for the true population mean. Use z = 2 (rather than 1.96) for your calculations. Give your answers as decimals, to two places In a survey, 19 people were asked how much they spent on their child's last birthday gift. The results were roughly shaped as a normal curve with a mean of...
You measure 44 textbooks' weights, and find they have a mean weight of 77 ounces. Assume...
You measure 44 textbooks' weights, and find they have a mean weight of 77 ounces. Assume the population standard deviation is 10.9 ounces. Based on this, construct a 95% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places.
Considering a graphed pdf for a continuous normal distribution with mean μ and standard deviation σ,...
Considering a graphed pdf for a continuous normal distribution with mean μ and standard deviation σ, which of the following are true? Select one or more: a. If the mean is zero then the pdf of the normal distribution and standardised normal distribution will be the same b. A distribution with a lower σ will have an increased P(X=μ) c. A combination of adding constants to and multiplying each term in the sample space will affect the skewness of the...
Answer the following about T-Test & T-distributions: 1. Which of the following statements related to the...
Answer the following about T-Test & T-distributions: 1. Which of the following statements related to the t-distribution is not true? Select one: a. Since the population standard deviation is usually unknown, the standard error of the sample mean is estimated using the sample standard deviation as an estimator for the population standard deviation. The formula is s/sqrt(n). b. The population must be t-distributed in order to use the t-distribution. c. Like the Normal distribution, the t-distribution is symmetric and unimodal....
A set of data is normally distributed with a mean of 44 and a standard deviation...
A set of data is normally distributed with a mean of 44 and a standard deviation of 3.2. Which of the following statements are NOT true? [Please make sure to explain why] I. 68% of the values are between 37.6 and 50.4. II. 13.5% is between 37.6 and 40.8. III. 5% of the values are lower than 37.6 or higher than 50.4
Consider the following data: x 44 55 66 77 88 P(X=x) 0.20. 0.10 0.30. 0.20. 0.20....
Consider the following data: x 44 55 66 77 88 P(X=x) 0.20. 0.10 0.30. 0.20. 0.20. Copy Data Step 1 of 5: Find the expected value E(X). Round your answer to one decimal place. Step 2 of 5: Find the variance Step 3 of 5: Find the standard deviation Step 4 of 5: Find the value of P(X>5). Round your answer to one decimal place. Step 5 of 5: Step 5 of 5: Find the value of P(X<6). Round your...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT