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!
Question:
(a) Search the Internet for the latest figures you can find on the age and sex of the Australian population.
(b) Then using Excel, prepare a table of population numbers (not percentages) by sex (in the columns) and age (in the rows). Break age into about 5 groups, eg, 0-14, 15-24, 24-54, 55-64, 65 and over. Insert total of each row and each column. Paste the table into Word as a picture.
Give the table a title, and below the table quote the source of the figures.
(c) Calculate from the table and explain:
Suppose that people's heights (in centimeters) are normally distributed, with a mean of 165 and a standard deviation of 6. We find the heights of 40 people.
What is the probability that a randomly chosen package is improperly sealed?
Assume that the height of adult caucasian women have a mean of 63.6 inches and a standard deviation of 2.5 inches. If 100 women are randomly selected find the probability that they have a mean height greater that 63.0 inches.
In hypothesis testing, the level of significance is? When would you use a t test and when would you use an f test ? You are interested in the assumption that adult students earn better grades than traditional students.
If an individual is selected, find the probability that the individual's pressure will be between 120 and 121.8 mm Hg. Why is the answer to Part a so much smaller than the answer to Part b?
Two cards are drawn successively and without replacement from an ordinary deck of playing cards. Compute the probability of drawing-- A heart on the first draw, a club on the second draw.
You randomly select 40 cans and carefully measure the contents. The sample mean of the cans is 127.9 ounces. Does the machine need to be reset? Explain your reasoning.
A contractor is considering a sale that promises a profit of $32,000 with a probability of 0.7 or a loss (due to bad weather, strikes, and such) of $9000 with a probability of 0.3. What is the expected profit?
This sample group has errors with a standard deviation of 54.7ft. At the 5% level of significance, test that the new population has errors with a standard deviation equal to 43.7ft.
The experimental medication of the placebo. Generate a 95% confidence interval for the difference in proportions of patients with hypertension between groups.
At a large commercial bakery, one of the measures used to evaluate employees is number of broken cookies per 1000 produced. The quality control department wants to determine if there is a relationship between years of experience and the broken co..
question a researcher decides to test her hypothesis that some toys are more fun to play with than others so she
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