I need help with #11 please 10:59MOMc) Assuming μZONE5GUC .Ill 90%= 12 and σ = 3, construct a 95% confidence intervμd) Assume that the µ is represented by ẞ, and the σ is the standarderror. Assume ẞ2 and σ =.=. 4, construct the confidence intervalAnd is ẞ significant?True, False or UncertainAnswer True/False or UncertainThe Gauss-Markov theorem states that in the presenMulticollinearity necessarily implies that one of the eThe R-squared value in a regression is a measure of tlHeteroscedasticity is a violation of one of the OLS assindependent variables.Economic Statistics11. Derive ẞ using math from OLS, use the standard OLSassumptions, then explain the intuition:12. What are the four Guass-Markov Assumptions?Multiple Choice13. Which of the following best defines a cointegrated series?A. Two or more series that have no long-run equilibriumrelationship.B. Series that are integrated of different orders.C. Series that share a common stochastic trend.D. Series that are stationary at level.14. What is the purpose of using dummy variables in a regressionmodel?A. To account for non-numeric data.B. To ensure that the error terms are normally distributed.

Step 1: Step 2: Step 3: Step 4:

Answered: 10:59 MOM c) Assuming μ ZONE 5GUC .Ill…

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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You collected a sample from a population which you realized has very high standarddeviation. You want to estimate the population parameter from this sample. You thinkthat your interval will be very wide, what you can do to narrow it down without changingyour confidence level. Will your suggestion to improve the width of the interval increasethe probability of the true mean lying in that interval?
100kl – 5k²1² + 2k + 4l TT = dl dk and dn dn Find dk = 100 – 10kl + and dn dl = 100 – 10lk² dn dk = 1001 – 10kl² + 2 and dn dl = 100k – 10lk² + 4 dn dk = 100 – 10kl2 + 2 and dn dl = 100 – 10lk² + 4 dn
qUESTION IS ATTACHEDI N SCREENSHOT BELOW THANKS FOR THE HLEP 13L6P4YP35YYETH[ RG[EP
18 We can make a confidence interval more precise (narrower) by, a increasing the sample size. b reducing the confidence level. c increasing the confidence level. d both (a) and (b) are correct.
24- Refer to the following output, what does it refer to?* Breusch-Godfrey Serial Correlation LM Test: F-statistic Prob. F(2.122) Obs R-squared 0.200071 0.415180 Prob. Chi-Square(2) 0.8189 0.8125 O a. This a heteroscedasticity test indicating that there is heteroscedastieity O b. This a heteroscedasticity test indicating that there is no heteroseedasticity O c. This an autocorrelation test indicating that thereis autocorrelation O d. This an autocorrel ation test indicating that there is no autocorrelation 25- Refertc the fallowing cutpue what does the coefficient andp-value of
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Q2. There are two estimators hat (0)₁ =x+ 1 and hat(e)2 = 2x of the 2n population mean μ. Check the Unbiasedness, Efficiency and Consistency of these estimators. (1) Unbiasedness: (2) Efficiency: (3) Consistency: Q2. There are two estimators ₁ = X + 1 and 2 = 2X of the population mean μ. 2n Check the Unbiasedness, Efficiency and Consistency of these estimators. 1 Unbiasedness: 2 Efficiency: 3 Consistency:
1
4.43 A firm wishes to estimate the mean number of operating hours of a particular type of lightbulb within 10 operating hours (plus or minus) and with 95% confidence. On the basis of previous knowledge with this type of lightbulb, the firm knows o = 30 h. How large a sample would the firm take? Ans. 35
A market researcher states that she has 90% confidence that the mean monthly sales of a product are between $190,000 and $220,000. Explain the meaning of this statement. Choose the correct answer below. O A. If all possible samples of the same size, n= 100, are taken, 90% of those samples will result in a 90% confidence interval that includes the true population mean. Therefore, she is 90% confident that this sample is one that does correctly estimate the mean. O B. A 90% confidence interval contains 90% of the possible sample means. Therefore, she is 90% confident that the interval contains the true population mean. OC. Ifa month was selected, there would be a 90% probability that the mean monthly sales value was within the confidence interval that the researcher found, so the researcher is 90% confident that the true population mean of monthly sales is within the interval. O D. A 90% confidence interval contains 90% of all monthly sales values in the population, so she is 90%…
GNP: PLUSES AND MINUSES The gross national product in recent years has basked in the warm glow of nearly universal praise. Econo mists, quite naturally, have been freest with the encomiums. Where else but the GNP could they get in one tidy number a measure of the growth in the mammoth U.S. economy. Businessmen, though not entirely persuaded of the value of statistics, especially esoteric statistics, nevertheless have been known to quote the GNP—possibly because of its powers to impress audiences with the speaker's grasp of the "big picture." Politicians, too, have been extravagant in their admiration of GNP, most especially when it was rising at a brisk pace. Even the ubiquitous cocktail party has paid homage to the GNP as assorted junior executives, research assistants, housewives, and dancing instructors have pronounced on the latest GNP numbers with a solemn and knowing air. Now all that seems to be changing. GNP increasingly is coming under attack. Dr. Arthur F.…
a) For each, find the expressions for marginal utilities and the marginal rate of substitution, and determine whether monotonicity and convexity are met.

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