There is concern about the speed of automobiles traveling over a particular stretch of highway. For a random sample of 28 automobiles, radar indicated the following speeds in miles per hour. 59 63 68 57 55 72 58 69 52 55 60 67 51 59 53 64 58 57 66 61 65 70 64 65 57 56 61 59 a. Check for evidence of nonnormality. b. Find a point estimate of the population mean that is unbiased and efficient. c. Use an unbiased estimation procedure to find a point estimate of the variance of the sample mean.

Q: メ+1

A:

Q: 3.3 31 3 O 3 O 3평 37

A:

Q: Simplify (22/3.2*/3)

A: We have to simplify the given expression.

Q: A = 6 -2 -2 10 -3 5 1 ---3-0 C=0-2 a = 1, b = [3 08]. -10 1 . B 5 2 11 9 4 4 7 0 0 11

A: We have to solve given Questions.

Q: 2. 3. 8. 5.

A:

Q: Liquid leaked from a damaged tank at a rate of r(t) liters per hour. The rate decreased as time…

A: We need to find lower and upper estimate.

Q: Question 26

A: We have given a graph which represent the derivative f' of some function f. we have to draw the…

Q: 31/2 / 1/2

A:

Q: 1. 2. 3.

A:

Q: Determine a conclusion. Choose the correct answer below. the null hypothesis. There is difference…

A: That is, there is no evidence to conclude that there is significant difference between the two…

Q: Suppose that 103 Σ ai = 19 and i=1 103 i=1 b₁ = 18. Compute the sum.

A:

Q: 619 d. 4 10

A:

Q: 10 8. ID 116

A: Introduction: The division is one of the four basic mathematical operations, alongside addition,…

Q: 6. 6. х 14

A: Given: 9x=x14

Q: Speedometer readings for a vehicle (in motion) at 14-second intervals are given in the table. t…

A: we need to find the distance travelled

Q: 198-33

A: Given: 198-33

Q: 6.1 4

A: Given that  The vector

Q: 1805

A:

Q: 2. 14 11

A: To find x.

Q: 3. What is the type of the function y-(3x+5)(2x+1)? ODecreasing Static Exponential Logarithmic…

A: The given function is y=3x+52x+1. What is the type of the given function.

Q: 57-24

A: Given that: 57-24

Q: 2) Expand the following a) Csa2-2b)

A: I have to exapand (5a^2-2b)

Q: Identify the postulate for each drawing

A: Identify the postulates for each drawing

Q: In the following diagram below, what is the slope of line AB? 3.

A: Ans:   1) From the graph given we can see the values of A= x1,y1= 3,4 B=x2,y2= 0,0

Q: 29 Using the combination formula expand (5+x)

A:

Q: 3 33. 3 .2 3.

A:

Q: 12 10 6. X%=

A:

Q: 11. 6.

A: We have to find radius

Q: 2sinx +-cafx costX

A: We know that sin^2x+cos^2x=1 2sin^2x+1-cos^2x\cos^2x = 2sin^2x+sin^2x/cos^2x 3sin^2x/cos^2x = tan^2x

Q: 6-1 t.

A:

Q: Number 16 1.1

A: