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!
During an election, an exit poll is taken on 400 randomly selected voters and 214 of those polled voted for Candidate "Jim". A majority is needed to win the election. We want to see if we can conclude that the majority will vote for Candidate "Jim" based on our sample proportion from the exit poll. The alternative hypothesis (Ha) is what we are testing to see and the null hypothesis (Ho) is the value that we are testing "against". (See page 402--the null hypothesis is a statement that the parameter takes a particular value, while the alternative hypothesis is that the parameter falls in some alternative range of values). We test to see if we can reject the null hypothesis and conclude the alternative hypothesis. A) i) State the null and alternative hypotheses using proper Statistical Notation (p for population proportion). ii) Is this a one-sided alternative hypothesis (> or <) or a two-sided alternative hypothesis (≠)? iii) What is the SEo. Show all work. iv) Calculate your test statistic (we use a Z test statistic with proportions). Show all work. v) Go to the Z Table in the back of the text and determine the p-value for our Z test statistic value. If we have a > alternative, we want the right-tail p-value. If we have a < alternative, we want the left-tail (cumulative probability) p-value. If we have a ≠ alternative, we want the two-tailed p-value. vi) What is our conclusion based on the p-value? (Can we declare Candidate "Jim" the winner?) Why?
What was the probability that a student worked a part time job or made the Dean's list. Interpret the results.
If alternate hypothesis mention that m doesn't equal 4,000, determine the rejection region for the hypothesis test?
A nutritionist wants to estimate the mean amount of cholesterol in a certain variety of chicken eggs. She wants to be within 14 mg. with 99% confidence.
Obtain a graphical representation of the relationship and give a brief description of the relationship and estimate the simple regression line and interpret the estimated relationship.
What statistic would be applied if the independant variable is nominal and one dependant variable is nominal and one dependant variable is scale? Is this a T-test?
How long is the time to expected replacement for a customer who has owned a vehicle 6.5 years and calculate .95 and .99 confidence intervals and explain your results.
One group was enquired, questions what they saw. One group was enquired, "About how fast were cars going when they smashed into each other?"
There are many nonparametric tests that have been developed over the years. Explain what nonparametric tests are and why they were developed.
What happens to the confidence interval when we go from a 95% confidence level to a 99% confidence level? Is this desirable? When would we want to use a 99% confidence interval?
An instructor claims the average time to take a statistics test is greater than 39 min. As, if a sample of 33 students took 43 min. is the instructor's claim true?
At the 0.05 level of significance, is there evidence to suggest that the population mean waiting time to check out is less than 10.73 minutes?
Solve the equation x^2 + 8x - 2 = 0 using both-Write one paragraph describing which method you prefer and why.
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