Rioja
posted by Laws .
A normally distributed population with 200 elements has a mean of 60 and a standard deviation of 10. The probability that the mean of a sample of 25 elements taken from this population will be smaller than 56 is:

No one has looked at your question because you put your name where the subject goes, and Laws where your name goes. Repost your question with statistics, or math in the subject, and your name where it belongs. Please, provide what you think the answer is and show your work so we can try to help you.
Respond to this Question
Similar Questions

Business
For a continuous random variable x, the population mean and the population standard deviation are 80 and 15 respectively. You extract a sample of 25 elements from this population. The mean of the sampling distribution of the sample … 
Statistics
Are these statements true or false? 1. The sample mean, the sample proportion and the sample standard deviation are all unbiased estimators of the corresponding population parameters. 2. If the population is normally distributed with 
statistics
How do we compute sample size fluctuations? 
sample size/ standard deviations
How do we compute sample size fluctuations? 
statistics
we are interested in testing at level of significance alpha =10 whether the population mean is different than 15. a random sample of size 25 is taken with a mean of 13.9. assume standard deviation is 2 and normally distributed population. … 
statistics
IQ scores are normally distributed with a mean of 105 and a standard deviation of 18. Assume that many samples of size n are taken form a large population of people and the mean IQ score is computed for each sample. If the sample size … 
statistics
A specific study found that the average number of doctor visits per year for people over 55 is 8 with a standard deviation of 2. Assume that the variable is normally distributed. 1. Identify the population mean. The population mean … 
math
Can I gt some help on these questions! 1.Research subjects that are divided up based on gender, age, etc. to be compared to people of the same group is what type of design experiment? 
Statistics
1.A sample of 25 bottles is taken from the production line at a local bottling plant. Assume that the fill amounts follow a normal distribution. The probability is 90% that the sample variance is less than what percent of the population … 
Statistics
A sample of size 16 is taken from a normally distributed population with a mean of 12 and a standard deviation of 3. The probability that the sample mean is equal to 12 is a. 1 b. 0.5 c.0.5 d.0 please explain