Question

With a known population mean of 100, and a known standard error of the mean of...

With a known population mean of 100, and a known standard error of the mean of 85, what is the probability of selecting at random a sample whose mean is equal to 110 or greater?

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
With a known population mean of 1500,and a known standard error of the mean world of...
With a known population mean of 1500,and a known standard error of the mean world of 42.50, what is the probability of selecting at random a sample whose mean is equal to 1450 or less.
6. Assume that adults have IQ scores that are normally distributed with mean 100 and standard...
6. Assume that adults have IQ scores that are normally distributed with mean 100 and standard deviation 15. In each case, draw the graph (optional), then find the probability of the given scores. ROUND YOUR ANSWERS TO 4 DECIMAL PLACES a. Find the probability of selecting a subject whose score is less than 115. __________ b. Find the probability of selecting a subject whose score is greater than 131.5. __________ c. Find the probability of selecting a subject whose score...
   Assuming a population is normally distributed with a mean score of 100 and a standard...
   Assuming a population is normally distributed with a mean score of 100 and a standard deviation of 10. A) What is the probability of selecting an item from the population with a score of more than 110? B) What proportion of the population is expected to have scores above 100? C) What is the probability of a score between 95 and 110? D) What is the probability of a score less than 95? E) What is the probability of...
A population has a mean of 75 and a standard deviation of 32. Suppose a random...
A population has a mean of 75 and a standard deviation of 32. Suppose a random sample size of 80 will be taken. 1. What are the expected value and the standard deviation of the sample mean x ̅? 2. Describe the probability distribution to x ̅. Draw a graph of this probability distribution of x ̅ with its mean and standard deviation. 3. What is the probability that the sample mean is greater than 85? What is the probability...
The population mean is known to be μ =160 and standard deviation σ = 30. What...
The population mean is known to be μ =160 and standard deviation σ = 30. What is the probability of selecting one individual from this population that has a value higher than 190?
For a particular known population, the mean is 100 and the standard deviation is 5. A...
For a particular known population, the mean is 100 and the standard deviation is 5. A researcher conducts a study in which 10 participants are exposed to an experimental procedure. To test the hypothesis that the population these 10 participants represent is different from the known population, the comparison distribution’s mean would be:
IQs are known to be normally distributed with mean 100 and standard deviation 15. In a...
IQs are known to be normally distributed with mean 100 and standard deviation 15. In a random sample of 37 people, find the probability that the average IQ is between 96 and 103.
With a mean of 100 and a standard deviation of 15, a random sample of 100...
With a mean of 100 and a standard deviation of 15, a random sample of 100 IQ scores is selected. The probability that the sample mean is less than k is 85%. Find k.
Q.6. (a) A random sample is drawn from a population with a known standard deviation of...
Q.6. (a) A random sample is drawn from a population with a known standard deviation of 2.0. Find the standard error (SE) of the sample mean if the sample size is (i) 16, (ii) 36, (iii) 81. (b) If the size of sample is 36 and the standard error of the mean is 2, what should be the size of the sample if the standard error is reduced to 1.2? solve the above problem step by step in proper format
15. Random samples of size 81 are taken from an infinite population whose mean and standard...
15. Random samples of size 81 are taken from an infinite population whose mean and standard deviation are 200 and 18, respectively. The distribution of the population is unknown. The mean and the standard error of the mean are (assuming infinite population) a. 200 and 18 b. 81 and 18 c. 9 and 2 d. 200 and 2 16. A population has a mean of 300 and a standard deviation of 18. A sample of 144 observations will be taken....
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT