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!
The average zinc concentration taken from a sample of zinc measurements in 25different locations is found to be 3.0 ounces per gallon. Find the 95 % confidence interval for the mean zinc concentration in the river. Assume that the population is normally distributed with a standard deviation of 0.2.
What do we mean by confidence intervals - provide an example that illustrates your answer. Suppose we were to apply 95% and 99% confidence to your study results.. how might your result differ and why?
If I had 6600 wigets, how many do I have to test with 0 failures to show 95% of them are acceptable with a 95% confidence?
You are asked to test the CFO's claim by examining monthly profits from the sample mega stores using the Z-test. State the decision rule using α = 0.05 significance level?
A restaurant claims that the waiting time of customers for service is normally distributed with a mean of 3 minutes and a standard deviation of 1 minute.
What are the critical values for z on a one-tailed test if alpha = .01? .001? What would the critical values be at both levels of significance if it was a two-tailed test?
Company A is hoping to expand its operations and a small group of investors is visiting next week. You are tasked with the duty of explaining how Company A uses this information from a linear programming model to optimize its shipping.
A recent article in The Wall Street Journal reported that the 30-year mortgage rate is now less than 6 percent. A sample of eight small banks in the Midwest revealed the following 30-year rates (in percent):4.8 5.3 6.5 4.8 6.1 5.8 6.2 5.6
Give an example of a null and alternative hypotheses. This can be a personal item or something at work. Additionally, identify the Type I and Type II Errors that could occur with your decision-making process.
what is the probability of obtaining at least 6 cases in this class if the nationwide rate holds True?
Estimate and interpret the p-value of the calculated test statistic.
A hypothesis could be that the rate of teenage crime (13-19 year olds) 50 years ago in the United States was significantly lower than the rate of teenage crime is today.
In the biology class the mean score was 79 with standard deviation 5.
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