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!
A vendor claims that the average weight of a sample shipment of parts is 2.84 kg. The customer randomly chooses 50parts and finds that the sample has an average weight of 1.98 kg. Suppose that the standard deviation of the population is known to be 0.45 kg. Using a level of significance of 0.05, test the hypothesis that the true average weight of the shipment is 1.98 kg. Assume that the weights are normally distributed. 1) state the null and alternative hypothesis. 2) identify if this is a one or two tailed test. 3) identify the critical values. 4) calculate the test statistic. 5) calculate the P-value. 6) State your conclusion.
Critically illustrate out the properties of a normal distribution. Explain why there are an infinite number of normal distributions.
Find out 90% confidence interval for mean grade of all the students in the class.
a. Would you use a test of homogeneity or a test of independence to answer this question?
Collect as much relevant data about the work case problem as possible. Analyse the data using descriptive statistics and then plot the data in appropriate graphical forms
A question in a 2007 Gallup poll asked, "Do you think the penalties for underage drinking should be made more strict, less strict, or remain the same?"
The Jacksonian Era (roughly 1828-1845) was seen as a time where the voice and will of the American common man.
Quality Progress, February 2005, reports on the results achieved by Bank of America in improving customer satisfaction and customer loyalty by listening to the voice of the customer.
Assuming that all students attend his class that day, how many students will he select to complete the questionnaire?
Create a 90% confidence interval for the level of cheating among high school students. Don t forget to check the appropriate conditions.
In a certain community, 40% of the households subscribe to a local newspaper, 30% subscribe to a newspaper of national circulation, and 60% subscribe.
The life of cell batteries is normally distributed with a mean of 82.5 hours and a standard deviation of 21.5 hours.
the height of woman ages 20-29 is normally distributed with a mean of 63.8 inches. assuming the standard diviation
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