Jillian is an analyst for a ride sharing app that connects users with drivers. She wonders if drivers in Dallas are more or less likely to cancel rides than drivers in Houston. She takes a random sample of 1000 rides from Dallas and finds that 30 were cancelled. A random sample of 1000 rides from Houston shows 24 cancelled rides. She used these results to test H: Pp = PH versus H, :pp + PH. The test statistic was z = 0.83 and the P-value was approximately 0.41. Assume that all conditions for inference were met. At the a = 0.01 level of significance, is there sufficient evidence to conclude that the proportion of cancelled rides is different between the two cities?
A Yes, since the P-value is greater than 0.01.
B Yes, since the test statistic is greater than 0.01.
C No, since the P-value is greater than 0.01
D No, since the test statistic is greater than 0.01.

Answers

Answer 1

Answer:

C No, since the P-value is greater than 0.01

Step-by-step explanation:

Since in the given situation we assume that all the conditions are ,met

And, at the a = 0.01 significance level we that that the proportion of the cancelled rides between the two cities would not sufficient as the P value is more than 0.001

Therefore the correct option is c.


Related Questions

Cami buys 4 pounds of ground beef for $22. The total cost in dollars, y, is proportional to the number of pounds purchased, x pounds ground beef y=what. ​

Answers

Answer:

88

Step-by-step explanation:

The total cost of y 4 pounds of ground beef which is bought by Cami at the rate of $22 per pound of ground beef is $88.

What is the total cost?

Total cost or the final cost is the summation of all the cost spend while buying any good or taking any service.

Cami buys 4 pounds of ground beef for $22.  The total cost in dollars, y, is proportional to the number of pounds purchased, x pounds ground beef.

In this problem, the total cost y has to be found out.​ As the price of one pound of ground beef is $22 and there is total 4 pounds of ground beef, Cami bought.

Thus, the total cost is,

[tex]y=22\times44\\y=88[/tex]

Thus, the total cost of y 4 pounds of ground beef which is bought by Cami at the rate of $22 per pound of ground beef is $88.

Learn more about the total cost here;

https://brainly.com/question/25109150

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10 points || answer ASAP if you can

Answers

Answer:

It would affect the mean, range, and standard deviation

Step-by-step explanation:

I got this right on the test :)

Diego has 200 students in his grade which is 2 times as many as Lin. Lin’s grade has x students. Write this equation.
ILL GIVE BRAINLEIST FAST PLZ 15 POINTS

Answers

200 divided by 2 = x

Hope this helps!

Answer:

200 ÷ 2 = x

Step-by-step explanation:

Diego has 2 times as many a Lin. That means to find Lin's student number, we would  have to split 200 in half.

Hope this helps!

Joe went on holiday to Spain.
His flights cost a total of £320
Joe stayed in an apartment for 3 weeks.
The apartment cost 560 euros each week.
Joe hired a car for 15 days.
The car hire cost 20.16 euros each day.
The exchange rate was £1 = 1.12 euros.
(a) Work out the total cost, in pounds, of the flights, the apartment and the car hire.
(b) If there had been more than 1.12 euros to £1, how would this affect your answer
to part (a)?
(2 part question; enter answers for (a) and (b) in the answer box below) *
(5 Points)

Answers

Answers:

a. £2,090
b. My answer would be less because my total in euros would be divided by a greater number when converting euros to pounds.

Work for part a:

Apartment: 560•3= 1680 euros

Car: 20.16•15= 302.4 euros

1680+302.4=1982.4

1982.4/1.12 = £x/1

1982.4 / 1.12= £1,770

£1,770 + £320 = £2,090 total

Work for part b:
Example:
(instead of 1.12 I put 2 to see what would happen with a greater number)
1982.4 / 2 = 991.2

991.2 is less than 1,770 (the answer I got with 1.12)

Let me know if you need any clarification! :)

HELP ASAP!!!
Why is it important to talk about the sad, terrible parts of history as well as the good parts?

Answers

Answer:

Although this is the math forum, I can still answer this

Step-by-step explanation:

Sad and terrible parts of history show our mistakes and the good parts show our improvements from them. It is important to include all the parts so that modern society can learn from them.

A store is having a sale all items are marked 30% off

Answers

Since you didn’t put the numbers to find the amount, I’ll teach you how to.. Once you have the decimal figure, multiply it by the number for which you seek to calculate the percentage

A model rocket is launched directly upward at a speed of 15 meters per second from a height of 10 meters. The function f(t)=−4.9t2+15t+10, models the relationship between the height of the rocket and the time after launch, t, in seconds. When, in seconds after launch, will the rocket reach its highest point? Round to two decimal places.

Answers

Answer:

Step-by-step explanation:

To find the highest point we use t = -b/2a (because that's the equation used to find the maximum of the function which is the maximum height the rocket reaches before heading back down ( aka highest point of the parabola at the turning point)

f(t)  = -4.9t^2 +15 +10

A = -4.9

B  = 15

C=10

Plug it in

-15/2(-4.9)   = 1.53 seconds

(In case you get confused 15 turns negative because b in the equation has a - symbol in front. If you had -15 as B you would put -(-15) making it positive)

Hope this is helpful

1.53seconds after launch, will the rocket reach its highest point.

What is height?

In mathematics, height is defined as the vertical distance from the top of an object to the bottom. Sometimes it is labeled as "height".

The term height in geometry refers to the measurement of an object along the y-axis in coordinate geometry.

Height is a way of measuring someone or something from the bottom to the top or from the head to the feet. In other words, height indicates how tall someone or something is. We can compare how tall we will be when we grow up. We often compare the average height of men and women in different countries.

Given:

f(t)=−4.9t2+15t+10

The vertex is the highest point of the function

when t= [tex]\frac{-b}{2a}[/tex]

          =[tex]\frac{-15}{2(-4.9)}[/tex]

          ≈ 1.53

f(t) is the maximum value

1.53seconds after launch, will the rocket reach its highest point.

To learn more about height, refer;

https://brainly.com/question/10726356

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Factor the following: 28 W + 12J
7 (9W + 3J)
4 (7W + 3)
2 (12W + 5)
I need these too NOW LOL

Answers

Step-by-step explanation:

https://youtu.be/e7WGZHTZm0I

Answer:

Answervis 4(7W+3)

Step-by-step explanation:

I hope it's helpful!

Although television HDTV converters are tested before they are placed in the installer's truck, the installer knows that 20 percent of them still won't work properly. The driver must install eight converters today in an apartment building.

(a) Ten converters are placed in the truck. What is the probability that the driver will have enough working converters?

Answers

Answer:

80%

Step-by-step explanation:

Please help me I will give brainliest. You need to use a^2+ b^2=c^2 format

Answers

Answer:

x = 9

Step-by-step explanation:

1) a²+12²=15²

2) a²+144=225

3) a²=81

4)[tex]\sqrt{81\\}[/tex]=9

HELP WILL GIVE BRANLIEST AND EXTRA POINTS!

Answers

Answer:

The answer is D

Step-by-step explanation:

You just use this equation to find it

A=2(wl+hl+hw)

Dicken's Hardware sells incandescent and CFL light bulbs. Yesterday they sold 18 incandescent bulbs and 24 CFL bulbs for total sales of $132.
Part A: Let x represent the cost of an incandescent bulb and let y represent the cost of a CFL bulb. Write an equation or inequality to represent the situation. Explain how you decided to use an equation or inequality.
Part B: A CFL bulb cost $4. Use this information and your equation or inequality from part a to find the cost of an incandescent bulb. Show your work and explain what your answer means in the context of the problem.

Answers

X = 100 so X = 100 and so yea and so yea and so yea and so yea and so yea

In circle B with the measure of minor arc AC= 84°, find m

Answers

Answer:

m<ADC = 42°

Step-by-step explanation:

Based on the inscribed angle theorem, the inscribed angle, m<ADC is ½ the measure of minor arc AC.

If minor arc is given as 84°, therefore:

m<ADC = ½(84)

m<ADC = 42°


In 10 minutes, Max ran 1.45 km while Avery ran 1.61 km. How much more did
Avery run?

Answers

Answer:

0.16km

Step-by-step explanation:

Unless I am missing something it is a simple subtraction problem and the time is not needed. It is simply asking how much farther Avery ran than Max, which is 1.61km - 1.45km which is 0.16km

Choose the equation that you can use to solve
for x:
3-6 = -3
X - 1 = X - 1
x2 - x = 6
-y-y=-24

Answers

Step-by-step explanation:

step 1. #1 has no x

step 2. #2 has infinite solutions

step 3. #4 has y but no x

step 4. x^2 - x = 6 can be solved for x.

Which expression has the same value as 12^2

Answers

6^4. I don’t know if this is multiple choice or not but 6 x 4 is equivalent to 12 x 2. They both have the sam product of 24

Which data point is an outlier in this graph?
(A) (5,-3)
B) (3,5)
© (-5,3)
D (3,-5)

Answers

Answer:

idel

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

5, -3 is not near the other dots making it an outlier

PLEAAASSSSEEEEE HELP ME WITH THIS I REALLY NEED HELP PLEASE PUT THE CORRECT ANSWER

Answers

Ok I am sorry to hear about you I hope you have to have a great night I love it 574)6:)77 ply ab.

Write down the gradient of the line with equation y = 2x + 3

Answers

Answer:

Slope : 2

Step-by-step explanation:

y = mx + c

2x - y = -3

x/ -3/2 + y/3 = 1

Rewrite the expression by factoring out (y-2).
3y?(y-2)-2(y-2)

Answers

Answer:

− y =3 y

Step-by-step explanation:

Simplify  

2

(

y

+

2

)

.

Tap for more steps...

y

=

3

y

Move all terms containing  

y

to the left side of the equation.

Tap for more steps...

4

y

=

0

Divide each term by  

4

and simplify.

Tap for more steps...

y

=

0

Help please all you have to do is use fractions strips to find each sum and simplify if possible

Answers

Step-by-step explanation:

i hope this can help you.

2 4/10?
round to nearest whole number

Answers

Answer: 2

2.5 and up we round up

2.4 and lower we round down

Answer:

2

Step-by-step explanation:

2 4/10

4/10 is less than 0.5 so we round down to 2

If a right circular cone is intersected by a plane only at its vertex, as in the picture below, what shape is produced?​

Answers

Answer:

A right circular cone can be intersected by some plane to produce circle, ellipse, hyperbola depending upon where the plane is crossing the cone.

But if the plane crosses at the vertex. Just one point is crossed.

Answer:

a point hope this helps

What is the median of the data set below? 40, 40, 52, 41, 62​

Answers

Answer:

41

Step-by-step explanation:

Arranged it in order

Answer:

41 because you have to rearrange the numbers from least to greatest and the median is the middle number

40,40,41,52,62

41 is the median

A bank offers a savings account that accrues compound interest quarterly at a rate of 4%. What is the initial amount needed in this account so that after 8 the account has a total of 439?


Please help!!! I need the equation and the answer itself

Answers

Answer:

439(1+4/100x8=579.48

Exit Ticket: Show all your work

-4x - 6 = -14

what does x equal ? show yur work

Answers

Answer:

-4x - 6 = -14

      + 6.  + 6

-4x = -8

——————

-4.      -4

—————

x = 2 :) copy it down like that :)

Step-by-step explanation:

Find the Area of the figure below, composed of a rectangle and a semicircle. Round to
the nearest tenths place.
10
6
Can somebody please help me

Answers

Answer:

Area = 74.1 square units

Step-by-step explanation:

Area of the composite figure = Area of the rectangle + Area of the semicircle

Area o the rectangle = Length × Width

                                   = 10 × 6

                                   = 60 square units

Area of the semicircle = [tex]\frac{1}{2}\pi r^{2}[/tex]

Here, r = radius of the semicircle

For the semicircle with radius = [tex]\frac{6}{2}[/tex] = 3 units

Area = [tex]\frac{1}{2}\pi (3)^{2}[/tex]

        = 4.5π

        = 14.14 units²

Total area of the composite figure = 60 + 14.14

                                                          = 74.14 square units                                                                                              ≈ 74.1 square units      

Fill in the blank:


Suppose W is a subspace of ℝ5, and suppose that e1,e3∈W, but e2,e4,e5∉W.


What is the strongest statement we can make about the dimension of W:


The dimension of W is at least ____ and at most ____.


(I tried, the answer is not 1 and 2)

Answers

you play free fire

Step-by-step explanation:

yes/no

Is negative 5 less than |5|

Answers

Yes, as the absolute value is always positive so a negative will definitely be less.

Answer:

Yes

Step-by-step explanation:

Is negative 5 less than |5|?

-5 < |5|

Or -5 < 5

Two hundred forty and twenty-five hundredths in standard form

Answers

answer:

240.25

step-by-step explanation:

look at what it says about the number and then decide

two hundred forty - - > 240

the number sounds just like what it says

twenty-five hundredths - - > .25

the numbers would be after the decimal since it is "hundredths"
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