Concept explainers
(a)
To calculate: The mean rounded to the nearest dollar for the salaries of research and development department of Richman chemicals where the salaries of the departments are $48397, $27982, $42591, $19522, $32400 and $37582.
(b)
To calculate: The median for the salaries of research and development department of Richman chemicals where the salaries of the departments are $48397, $27982, $42591, $19522, $32400 and $37582.
(c)
The mode for the salaries of research and development department where the salaries of the departments are $48397, $27982, $42591, $19522, $32400 and $37582.
(d)
A statistical interpretation based on the mean median and mode for the salaries of research and development department where the salaries of the departments are $48397, $27982, $42591, $19522, $32400 and $37582.
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
EBK BUSINESS MATH
- Is Given the characteristic polynomials p(x) for matrix Anxn find (a) n (size of A), and (b) its eigenvalues a. p(x) = (x-2)³ (x-3)2 b. p(x) = x²-6x+9arrow_forwarda. u- b. ||u|| If u = (0, 1, 0, 1), v = (3, 3, 3, 3), calculate c. u.v (the doc product of u and v)arrow_forwardFind eigenvalues A1, A2, and A3 and eigenvector for A₁ for matrix A: A = 0 -3 -3 +(639) 0 -3 0 0arrow_forward
- Find the nullity of T, if a. T: R6 R3 and rank(T) = 3. b. T: P4P4 and rank(T) = 3. C. T: M3×2 d. TR M1×3 and rank(T) = 6. R2 and rank (T) = 0.arrow_forwarda. T: b. T: Find standard matrix of following linear transformations. R² → R² T(x, y) = (x,y) R³ → R² T(x, y, z) = (0, y)arrow_forwardFind the rank of matrix below 1 2 a. A = -43 6 1 1 20 b. B= -1 4 1 0 1 3 1 3 -2 4 c. C = 0 1 -1 2 -2-64arrow_forward
- I dont understand how the trigonometry works with complex number explain the basics of itarrow_forwardInverse laplace transform Lect: Huda I H.w 1- F(S)= A- Find - F(s) of the following S (s+1)5 1 2- F(s) s² (s-a) 5+5 3- F(s)= s2+4s+3 1 4- F(s)= (s+2)2(s-2) 3s2-7s+5 5- F(s)= (s-1)(s2-5s+6)arrow_forwardInverse laplace transform Lect :Huda I H.w A- Find L-1 F(s) of the following 1- F(S)= 2- F(s)- S (+1)5 s² (s-a) 5+5 s2+4s+3 3- F(s)- 1 4- F(s)- (s+2)2(s-2) 3s2-7s+5 5- F(s)- (s-1)(s2-55+6) B-Solve the D.E of the following: 1- y'+3y+2fy dt = f(t) for y(0)-1 if f(t) is the function whose graph is shown below 2 1 2 2-y+4y-u(t) for y(0)=y'(0)=0 3- y"+4y'+13y= e−2t sin3t for y(0)-1 and y'(0)=-2 17arrow_forward
- 55 5.5 A glass bottle manufacturing company has recorded data on the average number of defects per 10,000 bottles due to stones (small pieces of rock embedded in the bottle wall) and the number of weeks since the last furnace overhaul. The data are shown below. Defects per 10,000 Weeks 13.0 4 16.1 5 14.5 6 17.8 7 22.0 8 27.4 9 16.8 10 65.6 ☐☐ Defects per 10,000 Weeks 34.2 11 12 49.2 13 66.2 81.2 87.4 14 15 16 114.5 17 a. Fit a straight-line regression model to the data and perform the standard tests for model adequacy. b. Suggest an appropriate transformation to eliminate the problems encoun- tered in part a. Fit the transformed model and check for adequacy.arrow_forwardAn article describes an experiment in which several types of boxes were compared with respect to compression strength (lb). The table below presents the results of a single-factor ANOVA experiment involving I = 4 types of boxes. Type of Box Compression Strength (lb) Sample Mean Sample SD 1 655.5 788.3 734.3 721.4 679.1 699.4 713.00 46.55 2 3 789.2 772.5 786.9 686.1 732.1 774.8 737.1 639.0 696.3 671.7 717.2 727.1 756.93 40.34 4 535.1 628.7 542.4 559.0 586.9 520.0 698.07 562.02 37.20 39.87 ЛUSE SALT Suppose that the compression strength observations on the fourth type of box had been 648.1, 741.7, 655.4, 672.0, 699.9, and 633.0 (obtained by adding 113 to each previous X4;). Assuming no change in the remaining observations, carry out an F test with α = 0.05. State the appropriate hypotheses. O Ho M₁ =μ₂ = μ3 = μ4 Ha at least two μ's are unequal Ho: M₁ = μ2 #M3 #μ4 H₂: all four μ's are equal O Ho M₁ = M2 = μ3 = μ4 Ha all four μ's are unequal # = O Ho: M1 M2 M3 & M4 Ha at least two μ's are…arrow_forwardFind the domain of each function. f(x) = tan 2x - πT 6arrow_forward
- Discrete Mathematics and Its Applications ( 8th I...MathISBN:9781259676512Author:Kenneth H RosenPublisher:McGraw-Hill EducationMathematics for Elementary Teachers with Activiti...MathISBN:9780134392790Author:Beckmann, SybillaPublisher:PEARSON
- Thinking Mathematically (7th Edition)MathISBN:9780134683713Author:Robert F. BlitzerPublisher:PEARSONDiscrete Mathematics With ApplicationsMathISBN:9781337694193Author:EPP, Susanna S.Publisher:Cengage Learning,Pathways To Math Literacy (looseleaf)MathISBN:9781259985607Author:David Sobecki Professor, Brian A. MercerPublisher:McGraw-Hill Education