a survey of physicians assistants reported a mean annual income of $84,396 and a standard deviation...
a survey of physicians assistants reported a mean annual income of $84,396 and a standard deviation of 15500. what is the probability that 64 randomly selected physicians assistants will have a mean salary greater than $87500?
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a survey of physicians assistants reported a mean
annual income of $84,396 and a standard deviation...
10) Physician's Assistants. The population of physician's assistants who were working full time reported a mean...
10) Physician's Assistants. The population of physician's assistants who were working full time reported a mean annual income of $84,396 and a standard deviation of $21,975. Suppose that instead of calculating data for all physician's assistants, you randomly sample 100 of them. Describe the mean and standard deviation of the sampling distribution of the sample mean. (4 points)
8. Assume that SAT scores are normally distributed with mean 1518 and standard deviation 325. ROUND...
8. Assume that SAT scores are normally distributed with mean 1518 and standard deviation 325. ROUND YOUR ANSWERS TO 4 DECIMAL PLACES a. If 100 SAT scores are randomly selected, find the probability that they have a mean less than 1500.___________ b. If 64 SAT scores are randomly selected, find the probability that they have a mean greater than 1600 c. If 25 SAT scores are randomly selected, find the probability that they have a mean between 1550 and 1575...
1. A population is known to have a mean of 10 and a standard deviation of 1.1....
1. A population is known to have a mean of 10 and a standard deviation of 1.1. A sample of size 32 is randomly selected from the population. a. What is the probability that the sample mean is less than 9.9? b. What percent of the population is greater than 10.2? c. What’s the probability that the sample mean is greater than 10.5?
5.4.1 Question Help A population has a mean = 141 and a standard deviation o =...
5.4.1 Question Help A population has a mean = 141 and a standard deviation o = 28. Find the mean and standard deviation of the sampling distribution of sample means with sample size n = 40. The mean is :-), and the standard deviation is 0;=0 (Round to three decimal places as needed.) 5.4.2 Question Help A population has a meanu - 74 and a standard deviation = 8. Find the mean and standard deviation of a sampling distribution of...
QUESTION 13 5 points Save Answer Information for Questions 12 and 13: The 2012 American Academy...
QUESTION 13 5 points Save Answer Information for Questions 12 and 13: The 2012 American Academy of Physician Assistants (AAPA) survey of the population of 84,000 physicians' assistants who were working full time in 2011 reported a mean annual income of $92,460 and a standard deviation of $11,000. Suppose the AAPA collected data on the salaries of 100 randomly selected Physicians' Assistants. Find the probability that the sample mean (which we call x-bar) would fall within $1500 of the population...
Heights of men are normally distributed with a mean of 69.0 inches and a standard deviation...
Heights of men are normally distributed with a mean of 69.0 inches and a standard deviation of 2.8 inches. What is the probability that a randomly selected group of 16 men have a mean height greater than 71 inches.
26. The population mean annual salary for flight attendants is $56,275. Assume annual salaries for flight...
26. The population mean annual salary for flight attendants is $56,275. Assume annual salaries for flight attendants are normally distributed, with a standard deviation of $1,720. We are flying from Las Vegas to Los Angeles, and we randomly select one flight attendant on our flight and ask him about his annual salary. What is the probability that this randomly selected flight attendant makes an annual salary less than $57,500? We randomly sample 30 flight attendants. What is the probability that...
I. Assume that z is normally distributed with a specified mean and standard deviation. Find the...
I. Assume that z is normally distributed with a specified mean and standard deviation. Find the indicated probabilities: c, p(x 120); μ 100 ; ơ--15 2. Find z such that 28% of the standard normal curve lies to the right of z. 3. A person's blood glucose level and diabetes are closely related. Let x be a random variable measured in milligrams of glucose per deciliter of blood. After a 12- hour fast, the random variable x will have a...
CNNBC recently reported that the mean annual cost of auto insurance is 1016 dollars. Assume the...
CNNBC recently reported that the mean annual cost of auto insurance is 1016 dollars. Assume the standard deviation is 293 dollars. You take a simple random sample of 73 auto insurance policies. Find the probability that a single randomly selected value is less than 964 dollars. P(X < 964) = Find the probability that a sample of size n=73n=73 is randomly selected with a mean less than 964 dollars. P(M < 964) =
The weights of ice cream cartons are normally distributed with a mean weight of 8 ounces and a standard deviation of 0.4 ounce.
The weights of ice cream cartons are normally distributed with a mean weight of 8 ounces and a standard deviation of 0.4 ounce. (a) What is the probability that a randomly selected carton has a weight greater than 8.13 ounces? (b) A sample of 36 cartons is randomly selected. What is the probability that their mean weight is greater than 8.13 ounces?
10) Physician's Assistants. The population of physician's assistants who were working full time reported a mean annual income of $84,396 and a standard deviation of $21,975. Suppose that instead of calculating data for all physician's assistants, you randomly sample 100 of them. Describe the mean and standard deviation of the sampling distribution of the sample mean. (4 points)
5.4.1 Question Help A population has a mean = 141 and a standard deviation o = 28. Find the mean and standard deviation of the sampling distribution of sample means with sample size n = 40. The mean is :-), and the standard deviation is 0;=0 (Round to three decimal places as needed.) 5.4.2 Question Help A population has a meanu - 74 and a standard deviation = 8. Find the mean and standard deviation of a sampling distribution of...
QUESTION 13 5 points Save Answer Information for Questions 12 and 13: The 2012 American Academy of Physician Assistants (AAPA) survey of the population of 84,000 physicians' assistants who were working full time in 2011 reported a mean annual income of $92,460 and a standard deviation of $11,000. Suppose the AAPA collected data on the salaries of 100 randomly selected Physicians' Assistants. Find the probability that the sample mean (which we call x-bar) would fall within $1500 of the population...
I. Assume that z is normally distributed with a specified mean and standard deviation. Find the indicated probabilities: c, p(x 120); μ 100 ; ơ--15 2. Find z such that 28% of the standard normal curve lies to the right of z. 3. A person's blood glucose level and diabetes are closely related. Let x be a random variable measured in milligrams of glucose per deciliter of blood. After a 12- hour fast, the random variable x will have a...
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