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maria payne

maria p.

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Abbe1. Define refractive index (n), density (d), specific refraction (R) and molar refraction (RM).

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Early work on the conditioning of fear responses set the stage for the development of Group of answer choices operant conditioning. escape learning. radical behaviorism. behavior therapy.

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extinction In the context of psychological treatment, what does CBT stand for? a. client based therapy b. complex brain therapy c. cognitive behavioural therapy d. compassion based therapy

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According to Erik Erikson, aging refers to what years of life? 50 and older Any age over 25 40 and older 65 and older

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Question 5 The primary purpose of homeostasis is to: A accept responses to stimuli B provide unlimited growth within an organism C allow unrestricted movement of an organism D convert an organism to live in a harmful environment E maintain a constant internal environment

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Next quarter, Alpha Beta Corp. (ABC) will pay a $1.50 dividend. Future dividends are expected to grow at the constant rate of 2% per quarter. If the effective quarterly rate is 2.5% what is the current stock price of ABC?

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Question 28 Producing a homogeneous product occurs in which of the following industries? <font face="Palatino Linotype">monopolistic competition and perfect competition </font> <font face="Palatino Linotype">oligopoly and perfect competition</font> <font face="Palatino Linotype">oligopoly, morspolistic competition and perfect competition</font> <font face="Palatino Linotype">perfect competition only</font> Question 29 Which of the following characteristics is not common to monopolistic competition and perfect competition? <font face="Palatino Linotype">The market demand curve is downward </font>-<font face="Palatino Linotype">sloping.</font> <font face="Palatino Linotype">Firms take market prices as given.</font> <font face="Palatino Linotype">Entry barriers into the industry are low.</font> O<font face="Palatino Linotype">Firms act to maximize profit. </font>

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37. When interest rates rise A. Investment and consumption increase, increasing AD B. Investment increases and consumption decreases, resulting in no change to AD C. Investment and consumption decrease, decreasing AD D. The costs of production fall, increasing AS 38. If the main goal of an economy was a larger increase in the economy's PPC, it should choose to produce: A. More consumer goods and fewer capital goods B. More capital goods and fewer consumer goods C. An equal number of capital and consumer goods D. Only consumer goods; no capital goods 39. A drought or other major natural disaster could cause which of the following? A. A decrease in aggregate demand and a lower price level. B. A decrease in aggregate supply and a higher price level. C. An increase in aggregate demand and a higher price level. D. An increase in aggregate supply and a lower price level. 40. Investment will increase if A. There is an increase in the real interest rate. B. Wealth increases in the U.S. C. There is an increase in business taxes. D. Businesses are more optimistic about future business conditions. 41. A simultaneous and equally sized tax increase and spending increase by the federal government will A. Have no effect on price level or real GDP B. Decrease price level and real GDP C. Increase price level and real GDP D. Increase price level and decrease real GDP (continue to the next page)

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Remark: show your work in details 1. To test the mileage efficiency of five new car models, random samples of various sample sizes were selected from each of the four cars. Below are the analysis of variance results (ANOVA) (some values are missing): Source of Variation DF Sum of Squares Mean Squares Test Statistic Treatment (Between) ? ? 3.4 ? Error (Within) ? 15.32 ? ? Total 32 ? ? ? a. Find the missing values (?) to complete the ANOVA table. (1.5 point) b. write down the Hypotheses: $H_o$: $H_1$: (0.5 point) c. what is the critical value for $\alpha = 0.01$? (0.5 point) 2. A university wishes to test the claim that gender and smoking are independent. 250 students are surveyed and the results were as follows: (numbers between brackets are the Expected values) Gender Females Males Total Smoking status Smoke 47 (57.2) 83 Does not smoke 63 57 (67.2) 120 Total 110 Calculate the chi-squared test statistic for testing the claim that gender and smoking are independent. (2 points) . Find the critical value at 0.05 level of significance. (0.5 pol

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(25 marks) 26. A light bulb and battery are used to create a circuit. a) What is happening in the circuit in order to allow the light bulb to light up? (2 marks) b) Where in the circuit do electric potential differences occur? Explain. (2 marks) c) List one way that resistance in this circuit can be increased. (1 mark) d) What would be the effect of increased resistance on electric current, given the electric potential difference remained the same? (1 mark) 27. If the current through a battery-powered calculator is 0.0050 A and the potential drop across the calculator is 5.0 V, calculate the resistance of the calculator. (2 marks) 28. a) Label the parts of the following schematic and state the purpose of each part labelled A through E. (10 marks) B V C A+ AD E b) Describe the direction of (i) electron flow and (ii) conventional flow through this circuit by describing each direction of flow as either clockwise or counter- clockwise. (2 marks)

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