3. A manufacturer of cases for sound equipment requires drilling holes for metal screws. The drill bits wear out and must be replaced; there is expense not only in the cost of the bits but also for lost production. Engineers varied the rotation speed of the drill and measured the lifetime y (thousands of holes drilled) of four bits at each of five speeds x. The data were: x: 60 | 60 | 60 60 | 80 80 80 80 100 100 y: 4.6 3.8 4.9 4.5 4.7 5.8 5.5 5.4 5.0 4.5 x: 100 100 120 120 120 120 140 140 | 140 140 y: 3.2 4.8 4.1 4.5 4.0 3.8 3.6 | 3.0 3.5 3.4 Create a scatterplot of the data. Does there appear to be a relation? Does it appear to be linear? a. Is there any evident outlier? If so, does it have high influence? b. Test the paired data for lack of fit at 5% level of significance. c. d. Fit the best regression model on Y based on X. Provide justifications.

Q: I need help with 9

A: Given

Q: B а) 4 군 up 군 %24 4. %24

A:

Q: 245,4

A: Given that 245u4v4

Q: 15 =

A: Given integration: ∫0915xdx Apply the constant multiple rule ∫cf(x)dx=c∫f(x)dx ∫0915xdx=15∫09xdx…

Q: arg er side is doubled.the new hyp

A: the largest side of a right angle triangle is hypotenuse.  It is doubled .

Q: 14 m2a2

A: Total female = 133+43 = 178 Total "did not graduate" = 55+43 = 98 Grand total= (126+55+133+43)  =…

Q: Save dre invX+3

A:

Q: I need help with 13

A: By Mean value theorem, if a function f is differentiable on a, b, then there exist c∈a, b such that…

Q: Evaluate 24

A: Explanation of the answer is as follows

Q: 1. The function f(x) = xª has been transformed, resulting in the functions below. Tell how you would…

A:

Q: A= ュC= D=0 FIND AK

A: The given matrix is A=1201213 To find: Ak

Q: Describe the number zero

A: (zero) is a number, and the numerical digit used to represent that number in numerals. It fulfills…

Q: Write an integer that

A:

Q: CAN YOU DO A HANDWRITTEN ANSWER

A:

Q: What does 42 =

A: 4^2 means  4×4

Q: can you do vii

A: Eigenvalue: A number  is said to be an eigenvalue of a matrix A if there exists a non-zerovector x…

Q: I need help with 6b

A:

Q: Graph. 0 = - 4

A:

Q: with

A:

Q: I need help with 21

A: The given series is ∑n=1∞x-3nn25n. Let an=x-3nn25n, then an+1=x-3n+1n+125n+1. Apply ratio test,…

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.