Identify the null and alternative hypotheses for the following problems. (Enter != for # as needed.)(a) The manager of a restaurant believes that it takes a customer less than or equal to 26 minutes to eat lunch. (Give your hypotheses in minutes.)H: P≤ 26p> 26(b) Economists have stated that the marginal propensity to consume is at least 85c out of every dollar.P≥ 0.85H₂:P<0.85(c) It has been stated that 77 out of every 100 people who go to the movies on Saturday night buy popcorn.P=0.77p! 0.77

The null hypothesis (H0) is the statement about the population parameter that is assumed to be true…

Answered: Identify the null and alternative…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Q. 47 How can you make multiple comparison in Friedman's test when H, is rejected?
Q# Defaulting on a loan means failing to pay it back on time. The default rate among X university students on their student loans is 6 %. As a project you develop a test to predict which students will default. Your test is good but not perfect. It gives 4% false positives, i.e. prediciting student will default who in fact will not. If has a 0% false negative rate, i.e. prediciting a student won't default who in fact will.a) Suppose a random student predicts positive. Report the probability that he will truly default.b) Someone offers to bet me the student in part(a) won't default. They want me to pay them Rs. 5k if the student doesn't default and they'll pay me Rs. 20k if the student does default. Is this a good bet for me to take?
We wish to estimate what percent of adult residents in a certain county are parents. Out of 200 adult residents sampled, 58 had kids. Based on this, construct a 95% confidence interval for the proportion p of adult residents who are parents in this county. Express your answer in tri-inequality form. Give your answers as decimals, to three places. __________< p <_________ Express the same answer using the point estimate and margin of error. Give your answers as decimals, to three places. p = _______ ± ___________
Suppose that BC financial aid allots a textbook stipend by claiming that the average textbook at BC bookstore costs $$ 62.87. You want to test this claim. The null and alternative hypothesis in symbols would be: H0:μ=62.87H1:μ≠62.87 The null hypothesis in words would be: The average price of all textbooks from the store is $$ 62.87 Based on a sample of 120 textbooks at the store, you find an average of 71.47 and a standard deviation of 14.2. The point estimate is: _____________(to 3 decimals). The 90 % confidence interval (use z*) is:__________ to __________ (to 3 decimals) Based on this we: Reject the null hypothesis Fail to reject the null hypothesis
Vegetarians are much less common in the United States than in the rest of the world. Suppose in a 2018 survey of 12,000 people in the United States, VeganBits found 60 who are vegetarians. (a) Develop a point estimate of the proportion of people in the United States who are vegetarians. (b) Set up a hypothesis test so that the rejection of H, will allow you to conclude that the proportion of people in the United States who are vegetarians exceeds 0.004. (Enter != for # as needed.) Ho: Ha: (c) Conduct your hypothesis test using a = 0.05. Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. O Reject H.. We can conclude that the proportion of people in the United States who are vegetarians exceeds 0.004. O Do not reject Ho. We can conclude that the proportion of people in the United States who are vegetarians exceeds 0.004. O Reject Ho. We cannot conclude that the…
1. In the past, a chemical company produced 880 pounds of a certain type of plastic per day. Now, using a newly developed and less expensive process, the mean daily yield of plastic for the first 50 days of production is 871 pounds; the standard deviation is 21 pounds. Do the data provide sufficient evidence to indicate that the mean daily yield for the new process is less than that of the old procedure? (Use a=0.05) (d) Conclusion of the test above is Reject the null hypothesis and the mean daily yield for the new process is less than that of the old procedure. Do not reject the null hypothesis and the mean daily yield for the new process is not less than that of the old procedure. Reject the null hypothesis and the mean daily yield for the new process is not less than that of the old procedure O #3 99+ M 1941 9 O (?) + [ Rain... = 41. insert E b p
A media personality argues that global temperatures are not rising, because every year an increase is reported, such as 0.09 degrees C. The difference from the previous year is less than the margin of error of about 0.13 degrees C, so that difference should be ignored. What is a strong counter argument? The difference is only 0.4 but that is still a significant change. The change of 0.9 is not a lot and thus should be ignored. The margin of error is larger than the increase so we should consider it an issue just extra information and thus can be ignored. The margin of error is quite small compared to the change year over year, so it is a significant issue.
Solve for B to D
If we use a cutoff of 0.05, is it unusual for someone to have a great deal of confidence in educational institutions?
A statistical program is recommended. A highway department is studying the relationship between traffic fow and speed. The foliowing model has been hypothesised: where y- traffic flow in vehicles per hour x- vehicle speed in miles per hour. The following data were collected during rush hour for six highways leading out of the oty. Traffic Flow (v) Vehicle Speed (x) 1,256 35 1.331 40 1.224 30 1,333 45 1,351 50 1.123 25 In working further with this problem, statisticians suggested the use of the folowing eurvinear estimated regression eqation. (a) Develop an estimated regression equaton for the data of the form - , . Round A to the neerest vteger and, to two decimal placen and , to three ocmal pacs) (b) Use a-0.01 to test for a significant relationship State the null and alternatiive hypotheses OHa One or more of the parameters is not equal to tero. H o---0
esc You may need to use the appropriate technology to answer this question. The following is part of the results of a regression analysis involving sales (y in millions of dollars), advertising expenditures (x, in thousands of dollars), and number of salespeople (x₂) for a corporation. The regression was performed on a sample of 10 observations. Constant X1 x2 Ho: 55°F Heavy sleet (a) Write the regression equation. Ha Coefficients -11.320 ŷ = -11.320+0.788x1 +0.151x2 0.788 2 0.151 = Standard Error (b) Interpret the coefficients of the estimated regression equation found in part (a). (Give your answers in dollars.) As advertising increases by 1 unit ($1,000), sales are expected to increase by $ 788 to increase by $ 151 X when advertising is held constant. (c) At a = 0.05, test for the significance of the coefficient of advertising. State the null and alternative hypotheses. (Enter != for # as needed.) B₁ = 0 B₁!=0 Find the value of the test statistic. (Round your answer to two decimal…
You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is significantly smaller than 60% at a level of significance of a = 0.10. According to your sample, 31 out of 60 potential voters prefer the Democratic candidate.

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS