Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q1) According to National Institute for Occupational Safety and Health, job stress poses main threat to health of workers. A national survey of restaurant employees determined that 75% said that job stress had negative impact on their personal lives. A sample of 100 employees of restaurant chain determines that 68 answer "Yes" when asked: "Does job stress have negative impact on your personal life?" Is this good reason to think that the proportion of all employees of this chain who would say "Yes" varies from national proportion, p0 = 0.75? Use a 5% level of significance.
Q2) In fiscal 1996, U.S. Agency for International Development provided 238,300 metric tons of corn soy blend (CSB) for development programs and emergency relief in countries throughout world. CSB is a highly nutritious, low-cost fortified food which is partially cooked and can be included into different food preparations by recipients. Specifications for CSB state that mixture must contain 2 pounds of vitamin premix for every 200 pounds of product. These specifications are designed to make a mean vitamin C content in final product of 40mg per 100g. Sample of 8 readings from production run has mean of 22.50mg per 100g with standard deviation of 7.19mg per gram. Is there significant evidence that this production run doesn't meet specifications? Use a 1% level of significance.
Discuss whether the percent distribution of the cross-tab and chi-square supports/does not support the researcher's hypothesis.
In a binomial distribution n = 8 and π = 0.2. Determine the probabilities of the following events.
Why is it misleading to draw the conclusion from the test above that long-time exposure to cadmium reduces the vital capacity?
What is the probability that the sum of their scores exceeds 1200 and probability that the average of the scores of all 400 student
The weight of a product is normally distributed with a standard deviation of .5 ounces. What should the average weight be if the production manager wants no more than 5 percent of the products to weight more than 5.10 ounces.
A sample of n observations is taken from a population. When performing statistical inference about a population variance, the appropriate chi-square distribution has:
Based on surveys conducted in 1989 and 1999, a researcher compared the proportion of high school age females interested in a career in science in 1989 with the proportion in 1999. He concluded that the proportions were not significantly different ..
If p denotes the p -value of the corresponding hypothesis test, which of the following is true?
In this forum post provide your results also elucidate what they mean in context of your favorite channel. To find 95 percent confidence interval for given data.
This model is fit to the data using the method of least squares using statistical software, and the following parameter estimates and their standard errors are obtained.
What is the standard deviation of expected returns for Stock X? For Stock Y?
At 95% confidence using the p- value approach, test the hypotheses. Let α = 0.1.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd