Determine labour efficiency variance Example 4: Following data pertains to two group of workmen and theirständard and actual working hours and rate:Standard HoursRate per hourTotalWorker A25 hrs.50Worker B10 hrs.330780Actual HoursRate per hourTotal20 hrs.2.5050Worker A15 hrs.460Worker BZ110

Answered: Image /qna-images/answer/e97726d4-7055-43b1-9cfa-e8e57628b259.jpg

Answered: Example 4: Following ständard and…

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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Germination of a seed commences with the uptake of water and is completed with the appearance of the embryo, in most species radical first, through the surrounding structures. Table 1 gives data regarding germination rates for treated and untreated seeds. (a) (b) Table 1: Germination rates for treated and untreated seeds Germinated Not Germinated 85 120 At 1% significance level, is the germination rate the same for the treated and the untreated seed? (c) Treated Untreated 15 30 State a suitable null and alternative hypotheses for the problem. Test the hypotheses in part (a) by using x² test. Write your conclusion.
econometrics question. Please prove
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Heteroscedasticity Stigler and Friedland (1983) conducted a study to determine whether the separation of company control from company ownership affects company profits. Using data from 69 companies in the United States, the authors estimate the following model: profiti = α + β1asseti + β2management_controli + ei Where i is company and: profiti = annual profit (in million dollar) asseti = company asset (in million dollar) management_controli = dummy variable that is worth one if the control of the company is held by the manager The regression results are presented in the table in the picture a. Explain whether the statements below are TRUE, FALSE, or CANNOT BE DETERMINED. "If there is a heteroscedasticity problem, the confidence interval of the OLS estimator is not valid." b. Determine the 95% confidence interval for the parameter 2, what can you conclude?
For theoretically modelling the economic development of national economy scenarios the following 2 models for GDP increment are analysed: a. Yt = Yt-1 + at b. Yt = 1.097 Yt-1 - 0,97 Yt-2 + at, where Y - GDP increment a - White noise with zero mean and constant variance o2 =100 t- Time (quarters starting with Q1, 1993) Check by an algebraic criterion which one is stationary.
Employee’s human capital is measured in terms of his/her age, education, tenure, and rank. Number of years an employee worked in the same organization measures the amount of firm-specific human capital that employee possesses. Data of 413 employees’ tenure was analyzed to predict interim leadership role importance in a study reported in Journal of Advanced Management Research (Vol. 9, 2012). The following table shows the data of these employees tenure in the organization: Tenure (in years) 0-1 1-6 6-11 11-20 20-21 No. of employees 48 109 58 75 123 Calculate mean tenure of these 413 employees.
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Low Carbohydrate Low Fat Mediterranean TOTAL Mean (sd) 95% CI (LL,UL) Mean (sd) 95% CI (LL,UL) Mean (sd) 95% CI (LL,UL) Mean (sd) 95% CI (LL,UL) Age 39.58 (10.257) (35.54, 43.29) 39.27 (9.594) (35.58, 42.54) 39.69 (10.403) (35.88, 43.65) 39.51 (9.961) (37.17, 41.67) Height 168.19 (7.255) (165.62, 171.04) 172.88 (11.347) (168.73, 177.31) 166.77 (9.872) (162.96, 170.08) 169.28 (9.872) (167.19, 171.47) Weight Baseline 76.119 (9.8230) (72.554, 79.769) 82.577 (18.8938) (75.500, 89.961) 77.346 (8.6345) (74.160, 80.769) 78.681 (13.3932) (76.086, 81.757) 12 weeks 73.192 (10.2942) (69.401, 77.088) 79.435 (18.8373) (72.178, 86.786) 71.881 (9.2598) (68.861, 75.486) 74.836 (13.7279) (72.172, 78.013) Body Mass Index Baseline 26.974 (3.5953) (27.354, 28.301) 27.354 (3.8568) (25.860, 28.798) 27.897 (2.9985) (26.864, 29.092)…
what is parameters and statiscics
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Example 4: Following ständard and actual working hours and rate: Standard Hours Rate per hour Total Worker A 25 hrs. 2 50 Worker B 10 hrs. 3 30 そ80 Total Rate per hour 2.50 Actual Hours 50 Worker A 20 hrs. 0. Worker B 15 hrs. マ110