Numerade

Questions asked

BEST MATCH

Adding two positive numbers can yield a negative result in Computer Arithmetic. O True O False

BEST MATCH

5. Researchers claim that the average age at which children start walking is 12.5 months. A child psychologist wanted to study if this claim was true. She took a random sample of 18 children and found that the mean age at which these children started walking was 12.1 months with a standard deviation of 1.5 months. If it is known that the ages at which all children start walking are approximately normally distributed with a population standard deviation of 0.80 months, does our sample data suggest that the true average age at which all children start walking is less than 12.5 months? Conduct this hypothesis test using a 1% level of significance. a. Identify the null and alternative hypotheses, writing them out using the symbols we used in class. b. State the level of significance. c. Calculate the test statistic, being sure to indicate if it is a z-score or a t-score. d. Find the critical number(s) OR calculate the p-value. e. State your decision to either reject the null hypothesis or fail to reject the null hypothesis. f. Restate the decision in the context of the problem in clear, plain English.

View Answer

BEST MATCH

Choose the correct term for the definition metric that qualifies induced consumption the concept that the increase in personal consumer spending consumption occurs with an increase in disposable income income after taxes and transfers great depression automatic stabilizer stabilization policy marginal

View Answer

BEST MATCH

By considering the quadratic formula, find the value of a such that the quadratic function f(x) = ax^2 - 2x + 5 has exactly one root.

View Answer

BEST MATCH

answer all corectly Question # 1 Use table to find Fourier transform. Sketch the magnitude response and phase response (i) xt=2Cos(100t)+6Sin500t (ii) x(t=40Sinc(20t) (iii) xt)=40Cos(2000t1+Sinc20t

View Answer

BEST MATCH

Find the voltage of the load resistor $R_L$ $V_1$=15 Volts, $V_z$=4.2 Volts. R=1 ?, $R_L$=4 ?

View Answer

BEST MATCH

I need in 3-4 hours. please atleast do 2-3 parts. will give a like 3. The function f() is periodic with period 2T, and is defined in the interval -T < x < T to be 0>x>- >x>0 where a is a positive constant. (i) Sketch f() for --3T < x < 3T. Is this function even or odd or neither? [4 marks] (ii) Find the Fourier series for f() [11 marks] (iii) By equating the values of the series and the original function at = Tr/2, show that 1 + 3 5 1 1 1 7 9 TT 1 4 [5 marks] (iv) By integrating the series and the original function with respect to x and setting = Tr/2, show that 1 1 1 1 TT2 72 92 8 [5 marks] In this question you may quote the standard results for the Fourier series and the Fourier coefficients in the form: [an cos(nx)+ bn sin(nx)] f(x) cos(nx)dx, n= f(x) sin(nx)dx(n>0) [Total: 25 marks]

View Answer

BEST MATCH

David's Pricing Strategy I High Tamre's Pricing Strategy High Low Tamra Profits $75 Tamra Profits $100 David Profits $75 David Profits $25 Low Tamra Profits $25 David Profits $100 Tamra Profits $50 David Profits $50 26. Based on the information in the figure above (A) Dave has a dominate strategy and Tamra does not (B) Tamra has a dominate strategy and Dave does not (C) neither Dave nor Tamra have a dominate strategy (D) both Dave and Tamra have a dominate strategy (E) no conclusion can be accurately made about strategic decision making based on the information in the figure above 27. Based on the information in the figure above (A) Tamra and Dave will both pursue a high price strategy (B) Tamra and Dave will both pursue a low price strategy (C) Tamra will pursue a high price strategy while Dave will pursue a low price strategy (D) Dave will pursue a high price strategy while Tamra will pursue a low price strategy (E) no accurate conclusion can be made about pricing strategy from the information given

View Answer

BEST MATCH

1. If at a certain instant during the course of the reaction 2 NO2(g) + F2(g) ? 2 NO2F(g), the rate of formation of the product were 0.16 mol/L-s, how fast would the F2 be disappearing (also in mol/L-s) at that same instant in time? 2. The rate expression for the reaction between nitrogen dioxide and fluorine is determined experimentally and found to be rate = k [NO2] [F2]. If concentrations are expressed in moles per liter, what are the units of k, the rate constant? 3. For the reaction A + 2B ? 2C + D, when the concentration of reactant A is halved, the rate is quartered. What is the order with respect to reactant A? 4. Gallium-65, a radioactive isotope of gallium, decays by first-order kinetics. The half-life of this isotope is 15.2 minutes. How long would it take for 7/8 of a sample of this isotope to decay?

View Answer

BEST MATCH

The range of healthy weight for adults is usually expressed in terms of the body mass index (BMI), defined, in SI units, as \text{BMI} = \frac{W(kg)}{H^2(m^2)} where $W$ is the weight (actually, the mass) of the person in kg and $H$ is the height in m, and the range of healthy weight is $19 \le \text{BMI} \le 25$. Convert and choose the correct formula in English units such that the weight is in pounds and the height is in inches. Multiple Choice $\text{BMI} = 75 \frac{W(kg)}{H^2(m^2)}$ $\text{BMI} = 385 \frac{W(kg)}{H^2(m^2)}$

View Answer

alison m.