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catherine johnson

catherine j.

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What has applying this rotation technique achieved? How have the factor loadings changed between the unrotated and rotated factor matrices? Examine at least two variables in your answer.

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7) What will the vacancy rate above which the developer will no longer be able to pursue this project? Explain your answer (10 points)

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QUESTION ONE a) A researcher conducts a simple study to determine the relationship between Zambia's non-tradition exports and real exchange rate from 1974 to 2004. The real exchange rate was expressed as the price of one US dollar in terms of Zambian Kwacha. The researcher was convinced that the following function explains the relationship between the two variables and conforms to the necessary theory; NTE = B + RER + U Where NTE stands for the non-traditional export and RER stands for real exchange rate. The researcher's OLS estimates were done using Eviews and the following results were obtained. Dependent Variable: (NTE) Method: Least Squares Date: 01/11/15 Time: 13:23 Sample: 1 40 Included observations: 40 Variable Coefficient Std. Error t-Statistic Prob. C 13.50508 0.567859 23.78246 0.0000 (RER) -0.127573 0.055852 -2.284149 0.0280 i) Use the estimated figures in the e -views output R-squared 0.920723 Mean dependent var 12.21574 to write the Adjusted R-squared 0.909754 S.D. dependent var 0.412363 results in S.E of regression 0.391727 Akaike info criterion 1.012203 standard form Sum squared resid 5.831096 Schwarz criterion 1.096646 Log likelihood 5.217338 and interpret Durbin-Watson stat 0.028038 the results. -18.24405 F-statistic 1.777891 Prob(F-statistic) [3 Marks] ii) Use the confidence interval method to conduct a test for the following hypotheses H: B=0 H:β 0 The results of your test should be explained to earn full marks [3 Marks] iii) Use the P-value method to test the hypotheses given and mentioned in (c) above. The p-value should be clearly stated. [3 Marks] iv) Given that the total sum of squares which is broken down into the explained and residual sum of squares is given by; ESS 0.391727 and RSS = 5.831096 Formulate the ANOVA table, repeat the test you conducted in (iv) above and compare the results. [ 3 Marks] b) A senior actuary wants to analyse the salaries of the 50 actuarial trainees employed in his company, using a linear model based on the number of years in school and years of experience. i) How would you express this model and the available data in terms of the notation used in the class notes; ii) Why should the model in (a) include the error term? [3 Marks] [3 Marks] c) The error term in a linear regression model has some fascinating statistical characteristics. i) The variance of the error term is given by the following definition; Var(u) E(u-E(u))² = σ² Show that; Var(u) = E(u) [3 Marks] ii) Show that: Σμυ) - Συ-Σ(4) [4 Marks] 2/4 [TOTAL: 25 MARKS]

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4) (12 points) Consider the double integral $\int_0^1 \int_{2-x}^{2-x} (x+y)^2 e^{y-x} dy dx$. Use the transformation $u = y - x$ and $v = x + y$ to write an equivalent double integral in the $uv$-plane with the order of integration $du dv$.

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The computer manufacturer below reaches the minimum efficient scale when it produces 1,000,000 computers per year. Should it engage in vertical integration in terms of producing its own computer chips or should it buy its chips from a chip manufacturer who reaches their minimum efficient scale when they produce 5,000,000 chips per year? Explain your reasoning.

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explain schizophrenia in layman's terms to someone who received a diagnosis

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A young woman describes her sex life as "active" and involving "many" partners. She wants a contraceptive method that is reliable and does not interfere with sex. She requests an intrauterine device (IUD). The nurse's most appropriate response is O "The risk of pelvic inflammatory disease will be higher for you." O "Pregnancy rates are high with the IUDs." \textbf{"The IUD does not interfere with sex."} O "The IUD will protect you from sexually transmitted diseases."

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Problem 3: $k_n' = 500\mu A/V^2$, $V_t = 2V$, $L = 10\mu m$, $W = 10\mu m$, and $\lambda = 0$ +5 V 7 Vs 100 k$\Omega$ (a) $I_G = $ (b) $V_S = $ (c) $I_D = $ -5V

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How do tendon reflexes help to differentiate clinically between an upper and a lower motor neuron lesion of the nervous system? What is the function of the stretch reflex?

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15. A construction worker leans his ladder against a building making a 60 degree angle with the ground. If his ladder is 20 ft. long, how far away is the base of the ladder from the building?

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