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 hotly disputed Proposition X will be on the ballot in November elections. A poll of N1 = 100 people shows that p1 = 50% (50 people) support Proposition X. A week later, a poll of N2 = 400 people shows that p2 = 55% (220 people) support Proposition X. The local newspaper claims: Support for Proposition X grows
(i) You are unconvinced and are trying to calculate the significance p-value for the null hypothesis: that the support stays on the level 50%. You use normal approximation. What is this p?
(ii) Can you reject the hypothesis with p = .05? How about p = .01?
(iii) What minimal N2 (assuming N1, p1 and p2 are unchanged) do you need to reject the null hypothesis with p = .05?
the owner of a fast-food restaurant has found the daily demand for ground beef at her restaurant to be normally
question 1 twenty-one homes with living areas under 2000 sq ft have selling prices with a standard deviation of
BMI in children is approximately normally distributed with a mean of 24.5 and a standard deviation of 6.2. A BMI between 25 and 30 is considered overweight. What proportions of children are overweight?
Suppose that beer consumption and religious affiliation are not independent of each other. That means that
a. Solve using the p value approch. b. Solve using the classical approch.
a survey of an urban university population of 25450 showed that 870 of 1100 students sampled supported a fee increase
Let N be number of heads obtained on the ten flips. Determine: If you win $1 each time a head appears and you lose $1 each time a tail appears, is this fair game? Describe.
Discuss how graphical representations can be used to display data in a meaningful way. Choose a specific business application and describe an example of a specific graph or chart that can be used to interpret data and why it is so useful.
In a random sample of 150 freshman applications received thus far, 67 of the applicants request financial aid. Is there evidence that the proportion of next year's freshmen class needing financial aid has increased?
Given the following ordered data pairs (x, y), compute the value of the linear correlation coefficient r: (2,6) (3,0) (5,15) (5,5) (10,2).
What is the value of sample mean? If the interval represents 90 % confidence interval, what would the 99 % confidence interval be?
A cell phone company collects data from a random sample of 500 households. The results indicate that 135 of the households would add an extra cellular number, provided it was offered at a reduced monthly cost.
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