BAD_2323_Module 2_Hwk-1 (2)

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ric Functions 88 MULTIPLE CHOICE Question 8 Listen What is the equation for the following graph? 4 2 0 π 2π Bπ Απ 5π -2 A y=-sin() B y=sin() C y=sin()

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Question 2 Listen Which linear regression equation matches the given data sets? Use your TI-84+ calculator to determine the equations. Hint: Click STAT and chose option 1: EDIT. Enter your data into L1 (explanatory variable) and L2 (response variable). Click STAT, choose CALC, and choose op- tion 8. Table A x y X Table B y 0 7.5 0 6.8 1 7.7 1 5 2 8 2 7.5 3 8 3 7 4 8.5 4 9 Table C Table D X y X y 0 11.2 0 15 1 7.7 1 77 2 8 NOT AN OPTION 3 4.5 3 6.5 4 4.6 4 3.2 ŷ=7.48+0.23x a. Table B ŷ-5.78+0.64x b. Table C y=10.48-1.64x c. Table A

Question 4 Listen Match the trigonometric ratio to the correct Cartesian ratio. Not all options will be used. tane a. cose b. Y x sine 1 C. y d. 1 X e. f. VI

No chatgpt used i will give 5 upvotes typing please i need both answers

Determine the range of the following set of values. 48 42 55 28 112 79 95 27 36 14 96 193 191

Su 2 The standard deviation of return on investment A is 19%, while the standard deviation of return on investment B is 14%. If the covariance of returns on A and B is 0.004, the correlation coefficient between the returns on A and B is 00:05:46 臺 Mc Graw Hill Delivery co ler.

Question 8 If Listen == 1 tane√3 and 0 is in Quadrant II, what are sine and cose? A sine= == 2 cose = 1/1/1 B = sine, cose= √3 - 2 C √√√3 sine= cose = - 2 D sine = - 12 √√3 cose = 2

Please answer practice question 9

Find the APR using the formula APR= 2nr/n+1 when n= 38 and r= 8%

Consider the following set of dependent and independent variables. Complete parts a through c below. y 9 11 D 15 15 21 24 28 32 X1 2 6 6 8 6 11 15 20 X2 16 10 14 11 3 8 7 4 a. Using technology, construct a regression model using both independent variables. y= (15.3952) + (1.0092) x₁ + (-0.5869)x2 (Round to four decimal places as needed.) b. Test the significance of each independent variable using α = 0.05. Test the significance of x₁. Identify the null and alternative hypotheses. Ho B₁ = H₁ B₁ 0 0 (Type integers or decimals.) Calculate the appropriate test statistic. The test statistic is 4.20 (Round to two decimal places as needed.) Determine the appropriate critical value(s) for α = 0.05. The critical value(s) is (are) ☐ (Round to two decimal places as needed. Use a comma to separate answers as needed.)

Please answer of Q3 :- Comment on the graph

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Refer to the scattergram and the Ordinary Least Squares line of best fit, in Figure 1. T 10 8 6 4 2 0 0 2 4) Figure 1 y=-0.7941x10.515 R=0.9425 4 6 X 8 If x increases by 1 unit, y will 10 12 1) increases by 0.7941 units. 2) decreases by 0.7941 units. 3) increases by (0.7941 +10.515) units. decreases by (0.7941+ 10.515) units.

Consider the following data: x 6 7 8 9 10 P(X = x) 0.1 0.3 0.1 0.1 0.4 Step 1 of 5: Find the expected value E(X). Round your answer to one decimal place.

Exercise 10.09 Algo (Inferences About the Difference Between Two Population Means: Sigmas Unknown) « Question 9 of 13 > Consider the following results for independent random samples taken from two populations. Sample 1 Sample 2 n1 = 10 n2 = 30 71 = 22.6 E2 = 20.7 81 = 2.5 82 = 4.4 a. What is the point estimate of the difference between the two population means (to 1 decimal)? b. What is the degrees of freedom for the t distribution (round the answer to the previous whole number)? c. At 95% confidence, what is the margin of error (to 1 decimal)? d. What is the 95% confidence interval for the difference between the two population means (to 1 decimal and enter negative value as negative number)? 0= Icon Key

For the data set 7 9 12 4 8 the mean is

Exercise 13.4 Let X₁, **** (a) Show that X, be independent random variables with expected values E[X] =μ, and consider the following simulation estimator of E[Y]: n W=Y+(X₁₁). i=1 - n n Var(W) = Var(Y) + c²/ Var(X;) +2Σ c; Cov(Y, X;). i=1 i=1 (b) Use calculus to show that the values of c₁, ..., c, that minimize Var(W) are Cov(Y, X;) Ci i=1,..., R. Var (X)