For a normally distributed population with a mean of 35 and a standard deviation of 7.5, what value of X would be exceeded only 10% of the time?
Note: Please show work if you can.
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
For a normally distributed population with a mean of 35 and a standard deviation of 7.5, if a sample of 50 is taken from the population, what is the probability that the sample mean will be between 35 and 37.5?
For a normally distributed population with a mean of 35 and a standard deviation of 7.5, if a sample of 50 is taken from the population, what is the probability that the sample mean will be greater than 36.5?
Suppose that the population mean flight time between cities 1 and 2 is 150 minutes with a population standard deviation of 28 minutes, and that this trip time is a Normally distributed random variable. Find the trip time in minutes that would only be exceeded with a 0.05 probability (or a 5% chance).
Please show all work: Suppose you are averaging 25 samples from a normally-distributed population with a mean u = 13.2 and a standard deviation o = 2.7. 2) After finding the standard deviation Si = 3.2 from 25 samples, you sample another 20 items and find a standard deviation S2 = 2.3. What is the probability that S2 could be 2.3 or smaller if both sets of samples come from the same population (i.e., 1 = 02)?
International mutual funds reported weak returns in 2008. The population of international mutual funds earned in 2008 was normally distributed with a mean of 10 and a standard deviation of 20. If you selected a random sample of 10 funds from this population, what is the probability that the sample would have a mean return (Please show all work) less than -10 between 0 and -10 greater than -30
show work write on paper please 10. A normal population has mean u = 7 and standard deviation o = 5. Find the proportion of the population that is between –2 and 10. 11. A population has mean pu=53 and standard deviation o = 34. Find the value that has 35% of the population above it.
(1 point) A sample of 6 measurments, randomly selected from a normally distributed population, resulted in a sample mean x = 7.5 and sample standard deviation s = 1.08. Using a = 0.01, test the null hypothesis that the mean of the population is 8.1 against the alternative hypothesis that the mean of the population is less than 8.1 by giving the following: (a) the degree of freedom (b) the critical t value (c) the test statistic The final conclusion...
A population is normally distributed with a mean of 55 and a standard deviation of 4. Using the Empirical Rule, approximately what percentage of data values fall between 51 and 59? Please show your calculations.
The heights of newborn babies are normally distributed with an unknown population mean and a population standard deviation of 10 centimeters. A random sample of babies from the population produces a sample mean height of x¯=50 centimeters. Use Excel to find the value of z that should be used to calculate a confidence interval with a 90% confidence level. Round your answer to three decimal places.
Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more? Why or why not? Provide an example. There are many examples currently on the Chegg database, PLEASE use a DIFFERENT example. Thank you!