Consider the estimated equation from Example 4.3, which can be used to study the effects of skippingclass on college GPA:1.39 + .412 hsGPA + .015 ACT – 083 skipped(.33) (.094)n = 141, R = .234.colGPA(.026)(.011)Using the standard normal approximation, find the 95% confidence interval for BraGPA:|(ii) Can you reject the hypothesis H,:(iii) Can you reject the hypothesis Hg: BisGPA = 1 against the two-sided alternative at the 5% level?(i)4 against the two-sided alternative at the 5% level?

A hypothesis is an assumption or a conjecture about the population parameter. Hypothesis testing is…

Answered: Consider the estimated equation from…

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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The Sydney Airport Commission set a performance target of 26 minutes for the time taken for passengers to claim their luggage at domestic terminals. In order to monitor performance a study was conducted by taking a random sample of 200 passengers disembarking from Sydney airport. If the study found a p-value of 0.5 what was the sample mean time taken by passengers to claim their luggage? (Your answer should be correct to one decimal place.)
You extract approximately 5,000 observations from the Current Population Survey (CPS) and estimate the following regression function: AHE= 3.32 -0.45 x Age, R² =0.02, SER= 8.66 (1.00) (0.04) where AHE is average hourly earnings, and Age is the individual's age. Given the specification, your 95% confidence interval for the effect of changing age by 5 years is approximately: OA. [$2.32, $4.32]. B. [$1.86, $2.64]. C. [$1.35, $5.30]. D. Cannot be determined given the information provided.
Trader Joes requires an area to have an average income of at least $45,000 to consider having a store. The Economics faculty at WKU constructed a 95% confidence interval for the average amount income of Bowling Green residents and computed this to be $26,000-$55,000. Which of the following statements is true? A. 95% of Bowling Green residents earn between $26,000 and $55,000 annually. B. 95% of Bowling Green residents in the sample to earn between $26,000 and $55,000 annually. C. With 95% confidence, we can say that Bowling Green residents earn between $26,000 and $55,000 annually. D. We are unable to determine without knowing the margin of error.
what is the p value？
4
8
(e) Suppose you have been given the following ordinary least squares (OLS) regression result. Estimated Long Run Coefficients using the ARDL Approach ARDL (1,2,2,2,0,2) selected based on Akaike Information Criterion Dependent variable is LY 33 observations used for estimation from 1987 to 2019 T-Ratio [Prob.] 4.6671[0.000] 4.6678[0.051] 7.9897[0.043] -4.802[0.009] 2.3898[0.028] 1.0498[0.308] Regressor Coefficient Standard Error 0.36068 0.45447 LK 0.077280 LM 0.097363 0.48751 -0.41208 0.19057 0.52521 LE 0.061017 LF 0.085800 LT 0.079744 C 0.500320 where, Y = Economic growth K = Capital M = Employment E = Electricity consumption F = Foreign direct investment T= Technology (i) Write the regression equation. Interpret the estimated coefficients. (ii) Which explanatory variables are significant at the 1%, 5% and 10% level? Which variables are insignificant? Briefly explain.
Find the confidence interval for estimating the population proportion for parts (a) through (c). a. 90% confidence level; n = 500; p=0.30 b. 95% confidence level; n = 220; p=0.04 c. α = 0.07; n = 345; p=0.50 Click the icon to view the standard normal table of the cumulative distribution function. a. The confidence interval is
The models below have been estimated using monthly data for the period 2000: 1-2020: 12. The natural logarithm of the variables used in this model is taken and the transaction is made. D08 is the dummy variable that takes a value of 1 in 2008 and after and 0 in other periods. s.e. indicates the standard error. Comment on the coefficients of variables D08 and (X2t * D08) in the model (3) above.
4.33 124 For a population of 1000 items, μ = 50 and o= 10. What is the mean and standard error of the theoretical sampling distribution of the mean for sample sizes of (a) 25 and (b) 81? Ans. (a) x = 50 units and ox= 2 (b) μx = 50 units and ox = 1.07 XX1. +1₁ f+h f th 10 if th
Does the following dataset satisfy GARP?
The OLS estimation of the relationship between GRADE and HOURS of studying gives the following fitted equation (standard errors in parentheses): GRADEA = 38.15+0.048*HOURS (6.85) (0.01) Calculate the corresponding t statistic to test the slope coefficient for significance (Use two decimal places without rounding)

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