A student wants to compare the mean times needed to access flight information for two major airlines. 20 randomly selected students accessed one airline's Web site, and the time required to locate the flight information had a mean of 2.5 minutes and a standard deviation of 0.8 minute. 20 different randomly selected students accessed the other airline's Website, and the time required to locate the flight information on that site had a mean of 2.1 minutes and a standard deviation of 1.1 minutes. Assuming that the conditions for inference are met, which of the following statements about the p-value is true?A. The p-value is less than 0.01; therefore, there is a significant difference in mean search times on the two WebsitesB. The p-value is greater than 0.01 but less than 0.05; therefore, there is a significant difference in mean search times on the two WebsitesC. The p-value is greater than 0.05 but less than 0.10; therefore, there is a significant difference in mean search times on the two WebsitesD. The p-value is greater than 0.10; therefore, there is no significant difference in mean search times on the two WebsitesE. Since this is a matched-pairs situation, additional information is needed to perform a test of significance.

Answers

Answer 1

Answer:

The statement which can be true about the p-value is;

A. The p-value is less than 0.01; therefore, there is a significant difference in mean search times on the two Websites

Step-by-step explanation:

Whereby the p-value is less than the significance level or pre-defined number we reject the null hypothesis that there is no difference in the mean time it takes to access the Websites of the two major airlines

Where the p-value is larger than the significant level, we fail to reject the null hypothesis and therefore, there is not enough evidence to indicate that the mean time to access the Websites of the two major airlines are different

The p-value is compared with a given level for the test, for it to be assed

The option that has the correct inference based on only one significant level or predefined is the p-value is less than 0.01; therefore, there is a significant difference in mean search times on the two Websites

Answer 2

The statement which can be true about the p-value is (A).

A. The p-value is less than 0.01; therefore, there is a significant difference in mean search times on the two Websites

What is the p-value?

The p-value in statistics is the likelihood of getting outcomes at least as severe as the observed results of a statistical hypothesis test, given the null hypothesis is valid.

The reason for option A is correct.

We reject the null hypothesis that there is no difference in the meantime it takes to visit the Websites of the two main airlines when the p-value is less than the significance level or pre-defined number.

We fail to reject the null hypothesis when the p-value is greater than the significant threshold

Hence there is insufficient evidence to suggest that the meantime to visit the websites of the two main airlines is different.

For the test to be assessed, the p-value is compared to a predefined level.

The p-value is less than 0.01 in the option that has the accurate inference based on only one significant level or predetermined; hence, there is a considerable difference in mean search times.

To learn more about the p-value refer to the link;

https://brainly.com/question/17257574


Related Questions

This table gives the value of an investment for the first 5 years after the initial investment was made. The data can be modeled using an exponential function.

Years 1 2 3 4 5
Investment value $1,050 $1,103 $1,160 $1,215 $1,280
Based on the data, which amount is closest to the value of the investment 10 years after the initial investment?


$1,350

$1,475

$1,625

$1,800

Answers

Answer:

C.) $1,625

Step-by-step explanation:

Going by the numbers on the graph, you can immediately tell $1,350 and $1,475 are way too low, so cancel those out and you get $1,625 and $1,800

From here, you can see that in 5 years it hasn't gone up by far, so it won't be 1,800$ by 10 years end, making the answer clear

You can just double 280 and get 560, which the closest answer is 1,625

It's really just a high-low estimate question, 2 answers are too high or low, one is close but not really, and one is just right- or inbetween

$1,625

The amount $1625 is closest to the value of the investment 10 years after the initial investment option third is correct.

What is an exponential function?

It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent [tex]\rm y = a^x[/tex]

where a is a constant and a>1

Let's suppose the exponential function that model the problem is:

 [tex]\rm y = ae^k^x[/tex]

Plug x = 1 and y = 1050

[tex]\rm 1050 = ae^k[/tex] ...(1)

Plug x = 2 and y = 1103

[tex]\rm 1103 = ae^2^k[/tex]  ...(2)

Divide equation (2) with (1)

[tex]\rm e^k = 1.0504[/tex]

Taking ln to get the value of k

k = 0.0491

a = 999.69

The exponential function:

[tex]\rm y = (999.6902)e^{0.0491}^x[/tex]

Plug x = 10 years in the above function:

y = $1633.44

Which is close to $1625

Thus, the amount $1625 is closest to the value of the investment 10 years after the initial investment option third is correct.

Learn more about the exponential function here:

brainly.com/question/11487261

#SPJ2

What is the value of k? show your work.
5/4(2-k) =2 (3k-1) - 2/3k

Answers

Answer:

hey how do u know if they're tracking u?

Step-by-step explanation:

Algebra help!




If you can also explain that would be appreciated!! If not that's totally okay I just really need the help!!​

Answers

Answer:

We have the value as;

8x/5

Step-by-step explanation:

Here, we want to get the breakdown of the given expression

We have (x^2 - 9) as (x-3)(x + 3)

So we have;

2x/(x + 3) * (x-3)(x+3)/5 * 4/(x-3)

= 2x * 4/5= 8x/5

PLEASE HELP!! ill give you 20 points ​

Answers

Step-by-step explanation:

Jim gives the cashier a $20 bill at the pharmacy.


Write an equation that relates the change c he gets back in dollars to the cost b, in dollars, of his purchases. Which variable represents the independent variable? How much change does he get back if his purchases total $12.83?

Answers

Answer:

b= 12.83

c= 7.17

Variable "c" is independent because it does not change. Jim receives $7.17 back.

The bill for dinner totaled $56 before tax and tip. The restaurant added a 6 percent sales tax. If Sandra wants to include a 16 percent tip calculated on the bill before sales tax is added, what is the total cost of the dinner?
$59.36
$64.96
$68.32
$68.86

Answers

68.86 Take the bull total 56 multiply .06 and you get 59.36. Multiply 59.36 x .16 and you get 68.86

write an equation of the line that passes through the point (0,3) and whose slope is 2

Answers

Answer:

y - 2x = 3

Step-by-step explanation:

Use the point-slope formula y - k = m(x - h), with h = 0, k = 3 and m = 2:

y - 3 = 2(x - 0), or

y - 3 = 2x, or

y - 2x = 3

Note that the given point, (0, 3), is the y-intercept of this line, and so we immediately know b in y = mx + b:  it is 3.

Andrew bought 24 carpet tiles and 3 tins of paint.
The total cost was £100.20. Each tin of paint cost £13.16.
Find the cost of one carpet tile.

Answers

Answer:

Cost of one carpet tile = (Total cost-3*tin of paint cost)/24

                                      =(100.20-3*13.16)/24=2.53

Hope this helps <3

Answer: £2.53

13.16 x 3 = 39.48

100.20 / 39.48 = 2.53

a number is multiplied by 4 and then 12 is added. the result is 36. what is the number?

Answers

Answer:

6

Step-by-step explanation:

4 * x + 12= 36

          -12  -12

4x = 24

x= 6

Answer: 6

Step-by-step explanation:

The equation will look like this

n(4)+12=36

n=6

6(4)+12

24+12

36

Evaluate
a-4 when a=7
The value is:

Answers

Answer:

3 is the answer to this problem

Answer:

Since we know a=4 all we have to do is plug 7 in for a and get the equation

7-4

Answer: 3

Step-by-step explanation:

Three friends went to lunch and ordered the special. They had a coupon of $10 off the bill and they spent $35 in all. Write an equation to represent this situation.

Answers

Answer:

35-10/3

Step-by-step explanation:

if f(x)=81, what is x?

Answers

Answer:

There's not enough information...

Answer: x=0 because there is no solution that's what I got

Step-by-step explanation:

work out the circumference of a cirlce with a diameter of 1.8m

Answers

Answer:

5.56 m

Step-by-step explanation:

Circumference = 2πr

r is the radius, however the diameter is given. The radius is half the diameter. So the radius is:

1.8 ÷ 2 = 0.9

Circumference = 2 × π × 0.9

= 5.56 m ( in 3 significant figures )

In The Figure Below, M/A=41 And M/B= (2x+3)

Answers

Answer:

Step-by-step explanation:

Use four unit multipliers to convert 170 square yards to square inches The perimeter of a square is 64 inches ​

Answers

Did you know u can use a tutor on this app it’s very helpful :)

In your math notebook: Give an approximation of the width of the river, support your answer with reasoning from the measurements given. Set up an equation and solve for the width of the Klamath River. Enter the width of the river.

TwT plz help​

Answers

Answer:

um i cant read it and why do you use cringet emojis like TwT

Step-by-step explanation:

Answer:

ehbsbshshwhajwj

Step-by-step explanation:

whhwbwbsbsbbsh

Please answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!! HELP !!!!!!!

Answers

Y= 2x + 3

You can tell because the slope is the same :)

guys pls help me with this

Answers

Answer:

3.since two base side are equal

4.sum of interior angle of the triangle is 180

9.base angle of isosceles triangle

16.the inscribed angle from the diameter is 90°

21.being CAE=90°

PLEASE HELP!!!!
If u give me the answer I will post another question for u worth ALOT of points just so rn I don't get scammed :(


How would you write the rules for solving fraction expressions?



A)- Addition



B)- Subtraction



C)- Multiplication



D)- Division

Answers

Answer:

multiplication

Step-by-step explanation:

Hopes this helps:

Answer: multiplication

We can multiply two fractions with different denominators, but we cannot add and subtract them.

SIMPLE > Simplify. 4√27 + 6√75 Enter your answer, in simplest radical form...

Answers

Answer:

42√3

Step-by-step explanation:

4√27 = 4√(9)(3) = 12√3

6√75 = 6√(25)(3) = 30√3

12√3 + 30√3 = 42√3


What is the approximate area of the shaded sector?
A. 38 cm2
B. 96 cm2
C. 302 cm
D. 603 cm?

Answers

Answer:

C. [tex] 302 \: {cm}^{2} [/tex]

Step-by-step explanation:

[tex]Area \: of \: sector = \frac{ \theta}{360 \degree} \times \pi {r}^{2} \\ \\ = \frac{135 \degree}{360 \degree} \times \pi {r}^{2} \\ \\ = \frac{135 }{360 } \times 3.14 \times {(16)}^{2} \\ \\ = \frac{108,518.4 }{360 } \\ \\ = 301.44 \\ \\Area \: of \: sector \approx \: 302 \: {cm}^{2} [/tex]

Angle PQRPQR and angle TQVTQV are vertical angles. The measures of the two angles have a sum of 100^{\circ}100

. Write and solve an equation to find x,x, the measure of angle TQVTQV.



​Enter your equation and your solution in the space provided. Enter only your equation and solution.

Answers

10005ssduduc Vicdhdjdjd

Answer:

same question

Step-by-step explanation:

rewrite the question in slope-intercept form:
2x-4y-12= -13-2x

Answers

Answer:

y= x + 1/4

Step-by-step explanation:

did the math and that should be your answer

What is the perimeter of a square whose area is 289 square feet?
A. 17 feet
B. 48 feet
C. 68 feet
D. 73 feet

Answers

Answer:72.25

Step-by-step explanation:

The letters in the word JANUARY were put in a bag and drawn randomly. What is the probability of picking an a?

Answers

Answer: 2/7

Step-by-step explanation:

There are 7 letters in January, and 2 "a"s in order to find the probability, simply take 2/7. You can either leave it in the fraction form, or use the calculator, showing you have a 0.2857% chance of picking an "a"

2/7

there are 7 letters in jAnuAry and as you can see there are 2 A's so there is a 2/7 chance which is higher of a chance than the rest of the letters which are 1/7 each so it is most likely you would draw A although I can't fully say that because there is a 5/7 chance of drawing the other letters. Another way to say it is there is a 0.28571428571% chance of drawing A but there is a 0.71428571428% chance of drawing any other letter.

                Hope this helps :3

                              Have a good day!

Look at the question below.

Answers

D because they all have x to makes like terms

A sphere has a radius 2.7 centimeters, What is its volume to the nearest cubic centimeter

Answers

Answer:

82.447957600811

Step-by-step explanation:

Find the area. Answer ASAP pls pls

Answers

Answer:

57.4

Step-by-step explanation:

If x = 3 units, y = 6 units, and h = 5 units, find the area of the parallelogram shown above using decomposition.

Answers

Answer:

12 square units

Step-by-step explanation:

Hope it helps

Find the equivalent of 2x^2 + (4x -6x^2) + 9 - (6x + 3)


A. -4x^2 - 2x +12
B.-4x^2 -2x + 6
C.-10x +6
D. 18x +12​

Answers

Answer:

B.-4x^2-2x+6.

Step-by-step explanation:

=2x^2+4x-6x^2+9-6x-3.

=2x^2-6x^2+4x-6x+9-3.

=-4x^2-2x+6.

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