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 22 minutes to eat lunch. (Give your hypotheses in minutes.)Ho:H(b) Economists have stated that the marginal propensity to consume is at least 85¢ out of every dollar.Ho:(c)It has been stated that 78 out of every 100 people who go to the movies on Saturday night buy popcorn.

Given,claim: The manager of a restaurant belives that ittakes a customer less than or equal to 22…

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

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1. In an Economics textbook, the following information is given: TSS=437 and RSS-291. As a student of Econometrics, calculate the ESS and the R-squared. A. ESS-437 and R-squared=0.789 B. ESS=146 and R-squared=0.334 C. ESS=250 and R-squared=0.28 TSS D. ESS=291 and R-squared=8.334 2. What can you say about the above R-squared figure in question one? A. The TSS means that 437 variations in the dependent variables are explained by regressors B. 40% of the regression power is explained by the error term. C. 33.4% variations in the dependent variable are explained by the independent variable(s) D. The independent variables in the model are significant. 146 3. The regression model includes a random error or disturbance term for a variety of reasons. Which of the following is not one of them? A. Measurement errors in the observed variables. B. To capture unobserved omitted relevant influences on y. VSS=RSt° C. A linear functional form may only be an approximation. D. To capture unobserved…
42. In a working class budget enquiry in towns A and B, it was found in 2014 that an average working class family's expenditure on food and other items was as follows : Town A Town B 50% 50% () Food (i) Other items In 2017, the consumer price index stood at 279 for town A, 265 for town B (Base year 2014 = 100). It was known that the rise in the prices of all articles consumed by the working class was the same for A and B. What was the 2017 index for (a) food, and (b) other items ? 64% 36%
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
The Arrow-Pratt measures of absolute and relative risk aversion respectively describe the willingness of a consumers to risk a fixed amount of wealth or a fixed fraction of their wealth. This problem will demonstrate this by setting up a simple investment problem. Suppose that consumers begin with initial wealth Wo and may buy shares of a risky asset whose payoff per share is given by 2. (1 w/ prob. P, X = 1-1 w/ prob.1– p. Therefore buying { shares of the risky asset yields final wealth W = Wo +X. Suppose that each consumer may buy an unlimited number of shares, and seeks to maximize expected utility of final wealth max E[u(W)]. (a) Expand the consumer's expected utility maximization problem, and find the first order condition. (b) Let Cara be a consumer whose utility function exhibits constant absolute risk aver- sion UA(W) = 1– e-aW Find Cara's optimal number of shares and show that it does not depend on her starting wealth Wo-
(a) Below is the extract of the first few questions in the questionnaire. Define the type of variable (Numerical Discrete / Numerical Continuous / Categorical Nominal / Categorical Ordinal) for each of the variables: Q1: Your studying program Circle your answer: Business / Engineering / Arts / Science) QII: Traveling time from home to college on 20 February 2022 (in minutes): QIII: Total spending on meal (breakfast + lunch + dinner) on 20 February 2022 (Circle your answer: Below $40 / $40 - less than $80 / $80 - less than $120 / $120 or above) QIV: Number of T-shirts you've bought in January 2022:
If we use a cutoff of 0.05, is it unusual for someone to have a great deal of confidence in educational institutions?
7
21 The Ebola virus has an infection rate of 11% per day as compared to the SARS virus, which has a rate of 4% per day. If there were one case of Ebola and 30 cases of SARS initially reported to authorities and cases are reported each day, which statement is true? At day 10 and day 53 there are more Ebola cases. (2) At day 10 and day 53 there are more SARS cases. (3) At day 10 there are more SARS cases, but at day 53 there are more Ebola cases. (4) At day 10 there are more Ebola cases, but at day 53 there are more SARS cases.
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…
1- please I want solution of all sub-parts on an urgent basis. Many thanks
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.

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