For a statistics project a community college student at Diablo Valley College decides to investigate cheating in two popular majors at DVC: business and nursing. She selects a random sample of nursing and business courses and convinces the professors to distribute a short anonymous survey in their classes. The question about cheating is one of many other questions about college life. When the student summarizes the data, she finds that 42 of the 50 business students and 38 of the 70 nursing students admitted to cheating in their courses. Can the student proceed with the calculation of the confidence interval for the difference in population proportions?

Answers

Answer 1

Answer:

Answer:

The student can proceed with the calculation of the confidence interval for the difference in population proportions. This is because, from the data she has, 3/4 of the Business students admitted to cheating while 1/2 of the Nursing students admitted to cheating also.

This is above the average number of students in her given sample size which is valid for extrapolation to the College Majors being investigated.

Step-by-step explanation:

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At the start of 2014 Mike's car was worth £12000.The value of the car decreased by 30% every year.
Work out the value of his car at the start of 2017.

Answers

The value of Mike's car at the start of 2017 is £4116.

What is percentage ?

Percentage is a ratio in the form of fraction of 100.

Percentage is defined by the "%" symbol.

What is the required value of the car ?

At the start of the year 2014, Mike's car was worth £12000.

The value of the car decreased by 30% every year.

So, The value of the car at the start of 2015 = £12000× $(1-(30)/(100))$

= £ 12000× $(7)/(10)$

= £ 8400

Again, The value of the car at the start of 2016 = £8400× $(1-(30)/(100))$

= £8400× $(7)/(10)$

= £5880

∴ The value of the car at the start of 2017 = £5880× $(1-(30)/(100))$

= £5880× $(7)/(10)$

= £4116

Learn more about percentage here :

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Find the area of a triangle with sides a=5,b=8, and c=11 useing the herons formula

Answers

Answer:

18.330302...

Step-by-step explanation:

Answer: 18.330302

Step-by-step explanation:

i think?!

Determine which statements are true in the set of real numbers3. (Select all that apply.) (a) Two lines parallel to a third line are parallel. (b) Two lines perpendicular to a third line are parallel. (c) Two planes parallel to a third plane are parallel. (d) Two planes perpendicular to a third plane are parallel. (e) Two lines parallel to a plane are parallel. (f) Two lines perpendicular to a plane are parallel. (g) Two planes parallel to a line are parallel. (h) Two planes perpendicular to a line are parallel. (i) Two planes either intersect or are parallel. (j) Two lines either intersect or are parallel. (k) A plane and a line either intersect or are parallel. Incorrect: Your answer is incorrect.

Answers

Answer:

(a) True

(b) False

(d) False

(e) False

(f) True

(g) False

(h) True

(i) True

(k) True

Step-by-step explanation:

(a) Two lines parallel to a third line are parallel

True

(b) Two lines perpendicular to a third line are parallel

Only for lines on the same plane

Therefore, false

True

(d) Two planes perpendicular to a third plane are parallel

The two planes can be at an angle to each other and so intersect

Therefore, false

(e) Two lines parallel to a plane are parallel

Where the two lines are on a plane parallel to the first plane but the lines are not themselves parallel to each other they intersect

Therefore, false

(f) Two lines perpendicular to a plane are parallel

True

(g) Two planes parallel to a line are parallel

Where the planes are not parallel to each other, they will intersect

Therefore, false

(h) Two planes perpendicular to a line are parallel

True

(i) Two planes either intersect or are parallel

True

(k) A plane and a line either intersect or are parallel

True.

The question is: 5 < b - 3

Answers

Answer:

8 <b

Step-by-step explanation:

5 < b - 3

Add 3 to each side

5+3< b-3+3

8 <b

Answer:

8 < b

Step-by-step explanation:

1. Add 3 by both sides to eliminate the -3 on b - 3.

2. You get 8 < b.

Need help with calculus question

Answers

The value of the derivative at $x=5$ is the slope of the tangent line at the point $(x,g(x))=(5,-4)$ .

So the tangent line has equation

$y-g(5)=g'(5)(x-5)\implies y+4=6(x-5)\implies\boxed{y=6x-34}$

Mike buys a pack of markers for $2.85. He uses a 20% off coupon, what is the price of the markers with the coupon?A $2.28
B $3.42
C .57
D $2.53

Answers

The answer would be C

Answer:

c.57

Step-by-step explanation:

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