Observations from a quantitative population produced
Course:- Basic Statistics
Reference No.:- EM131134697

Assignment Help
Expertsmind Rated 4.9 / 5 based on 47215 reviews.
Review Site
Assignment Help >> Basic Statistics

A random sample of n = 35 observations from a quantitative population produced a mean  width== 2.4 and a standard deviation s = .29. Suppose your research objective is to show that the population mean m exceeds 2.3.

a. Give the null and alternative hypotheses for the test.

b. Locate the rejection region for the test using a 5% significance level.

c. Find the standard error of the mean.

d. Before you conduct the test, use your intuition to decide whether the sample mean  width== 2.4 is likely or unlikely, assuming that µ = 2.3. Now conduct the test. Do the data provide sufficient evidence to indicate that µ > 2.3?

Put your comment

Ask Question & Get Answers from Experts
Browse some more (Basic Statistics) Materials
ABC Corp. is a firm with all-equity financing. Its equity beta is .80. The Treasury bill rate is 4 per cent and, and the market risk premium is expected to be 10 per cent. W
Assume this is an average from a population with standard deviation of $1.5. If a random sample of 30 months is selected, what is the probability that its average will excee
Have you ever paid attention to the hundreds of little plastic containers located in the cosmetics aisle of your grocery store? Or in the pharmaceutical aisle? Or, indeed, i
Do these data satisfy the assumptions for inference? Explain.- Find the mean and standard deviation of the observed weights.- Create a 95% confidence interval for the mean wei
Suppose you are watching a radioactive source that emits particles at a rate described by the exponential density f (t) = ?e-?t , where ? = 1, so that the probability P (0, T 
Scores by women on the SAT-I test are normally distributed with a mean score of 998 and a standard deviation of 202. scores by women on the ACT test are normally distributed
Select another sample of 30 scores from the same population, what measure of central tendency is likely to vary least between your first and second sample?
While some teenagers received no allowance, others reported receiving $200 per week. Based on this information, the mean allowance for U.S. teenagers is most likely 0 $50.