Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 72.6 Mbps. The complete list of 50 data speeds has a mean of x=18.55 Mbps and a standard deviation of s=19.69 Mbps. a. What is the difference between​ carrier's highest data speed and the mean of all 50 data​ speeds? b. How many standard deviations is that​ [the difference found in part​ (a)]? c. Convert the​ carrier's highest data speed to a z score. d. If we consider data speeds that convert to z scores between −2 and 2 to be neither significantly low nor significantly​ high, is the​ carrier's highest data speed​ significant?

Answers

Answer 1

Answer:

a. 54.05 Mpbs.

b. 2.745... standard deviations.

c. The z-score is 2.745....

d. The carrier's highest data speed is significantly high.

Step-by-step explanation:

a. The difference between the highest measured data speed and the mean is 72.6 - 18.55 =  54.05 Mbps.

b. The amount of standard deviations of 54.05 Mbps is equal to this value divided by the standard deviations, so we yield [tex]\frac{54.05}{19.69} = 2.745...[/tex] standard deviations.

c. The z-score is equal to the difference between the mean and a data point in standard deviations, so the z-score is 2.745....

d. 2.745... is not between -2 and 2, so the carrier's highest data speed is not insignificant - so it's significantly high.


Related Questions

If you were to solve the equation x+14=22, what steps would you take to solve this equation?​

Answers

subtract 14 from 22 to isolate the variable

what is m/a
side a
side b

Answers

side b side b side b side b

pls helpp mee!!!!! pleaseee

Answers

Answer:

it is 5 inches squared

Step-by-step explanation:

1 inches. sjwjqkqkwjhed

f(x)= 2/x-2 find (fof) (i)

Answers

Answer:

Step-by-step explanation:

cant see pic

For parallelogram ABCD, find the value of x

Answers

3x+20=5x-12
3x+20+12=5x-12+12
3x+32=5x
3x-3+32=5x-3
32=2x
32/2=2x/2
16=x
reflexive property of equality
x=16

Answer:16

Step-by-step explanation:

Factor

x2 + 10x + 25

Answers

x=-5 i hope this helpsss

Answer:

(x+5)(x+5)

Step-by-step explanation:

x²+10x+25

25

/ \

+5 and +5

(x+5)(x+5)

if you dont understand. I recommend this video https://youtu.be/yBCAv_NzzPQ

at 10:21

Justin says that the value of the expression is 450. How did he get that answer?
8+13+4×1/3(27÷1/2).

Answers

The answer is 93!!!!

PLZZZZ HELP IT'S FOR MIDDLE SCHOOOOOLLLLL
Tyler’s brother works in a shoe store. Tyler’s brother earns a commission. He makes 2.5% of the amount he sells. Last week, he sold $900 worth of shoes. How much was his commission?

Answers

Answer:

$22.5

Step-by-step explanation:

#3 (1 pt) A certain baseball card is very rare and is currently worth $2000. If the price of this card increases by 3% a year,
write an exponential equation for how much the card will be worth x years from now.

Answers

Answer:

$2000x(1.03)ˣ

Step-by-step explanation:

This is known as compound interest.

100% + 3% = 103%, so we put this into a decimal: 1.03

We now put this into the equation:

$2000x(1.03)ˣ

If you want to work out the price after, say 3 years, then you would change x to 3, so the equation becomes

$2000x(1.03)³

You can then use a calculator to work out the answer.

3/5 TIMES 1/2 WHOEVER ANSWERES IN UNDER 2 MINUTS I WILL MARK BRAINLIEST AND ILL GIVE YOU EXTRA POINTS

Answers

Step-by-step explanation:

3/10 or 0.3

hope it helps:))!

Answer:

0,3

= 3/10

Step-by-step explanation:

thank you

i hope this helps

I need to find the missing side given the area

Answers

Answer:

4

Step-by-step explanation:

The formula to the area of a triangle is 1/2(base) * height. Since it is asking to find the height and you are given the base, you need to solve:

1/2(6) * x = 12

multiply: 3x = 12

divide: x = 4

which one is a Metaphor


1. A phrase where the words have no connection to their meaning. carries no meaning outside of context or prior experience with the phrase and cannot be translated.

2. Extreme exaggeration

3. words that have the same beginning sound together

4. A reference or mention of a person, event, statement, piece of art, history, myths, religion, or popular culture

5. A direct comparison that does not use like or as. Instead, it says something IS something else.

6. Giving human characteristics to non-human things.

Answers

Answer:

5. A metaphor is a direct comparison that does NOT use the words like or as. It says that something is something else.

For example:

Her eyes are the ocean and you can get lost in their waves.

His speed is that of a cheetah.

She is the calm wind on a late Sunday evening.

He is the brain of a computer while he designs the new car.

HELP! DUE IN 5 MINS TvT

Could the table of (x,y) pairs
Have been generated by a linear function?

O. Yes
O. No

Answers

I believe that answer is No
Yes
Vhfbunn gn Maugham

The midpoint of CD is M=(1, 2). One endpoint is C = (6, -2).
Find the coordinates of the other endpoint, D.

Answers

Answer: Endpoint = (-4,6)

Step-by-step explanation:

To find any endpoint use the formula [tex]\frac{x_1+x_2}{2} = Xmp[/tex]    [tex]\frac{y_1+y_2}{2} =Ymp[/tex]

[tex]\frac{6+x_2}{2} = 1[/tex]          [tex]\frac{-2+y_2}{2} =2[/tex]    

multiply each by 2  to simplify

[tex]\frac{6+x_2}{2*2} = 1*2 = {6+x_2}= 2[/tex]    [tex]\frac{-2+y_2}{2*2} =2*2 = -2+y_2=4[/tex] take the equations and simplify

6+[tex]x_{2}[/tex] = 2                          -2+[tex]y_{2}[/tex] = 4  =  

-6       -6                          +2       +2

   [tex]x_{2}[/tex] = -4                               [tex]y_{2}[/tex] =  6

To check use the Midpoint formula

[tex]\frac{-4+6}{2} , \frac{6-2}{2} = \frac{2}{2} , \frac{4}{2} = (1,2)[/tex]

It takes 80 oz of grass seed to seed 5600 ft? of lawn. At this rate, how much would be needed for 8400 ft of lawn?

Answers

Answer:

120 oz

Step-by-step explanation:

5600/80 = 70 rate

8400/ 70 = 120 oz

"35 degrees above 0 positive or negative

Answers

Answer:

Positive

Please mark me brainliest!!!!!!

Positive!

Anything above 0 is positive.

Bye!! <3

-Lexi

the factory made a hundred packs of gum 40% of the packs contain to mint flavored gum how many packs of mint gum did the factory make​

Answers

Answer:

I would say that this is 40 packs of mint flavored gum (sorry if this is wrong)

Step-by-step explanation:

Since there are 100 packs of gum, the 40% just turns into 40

PLEASE HELP ITS URGENT
8. Calculate the value of Angle B: ___________

Answers

Answer:

36

Step-by-step explanation:

First: add 24and 30 to get 54

Second: subtract 54 from 90

Third: then you get 36 as an answer

Given f(x) = x^2+ 3x, find f(A + 4).

Answers

Answer:

f(x) = x^2+ 3x

f(A + 4)=(A+4)²+3(A+4)=A²+8A+16+3A+12

=A²+11A+28

Which fraction has the same value as 0.3


Answers

3/10


dhjdbdjwndjdjfhdjsjs

show that
[a+x]ⁿ=aⁿ[1+×/a]ⁿ, a≠0

Answers

Answer:

[tex]Proof~that~(a+x)^n=a^n(1+\frac{x}{a})^n\\R.H.S. = a^n(1+\frac{x}{a})^n = [a(1+\frac{x}{a})]^n [a^nb^n=(ab)^n] \\~~~~~~~~~~~= (a+x)^n =L.H.S. ~proved[/tex]

-7 1/3 divided by 4 1/4 in mixed number.

Answers

Answer:

1 37/51

Step-by-step explanation:

How much interest is earned on $342.50 at 8% for three years?

Answers

the answer is $82.20 because 342.5 x .08=27.4 and 27.4 x 3=82.2

Maricela has a 32 ounce drink. She drink 8 ounces. What is the percent of ounces Maricela left from the drink

Answers

Answer:

The percent she has left in the drink is 75%

Step-by-step explanation:

1 minus [tex]\frac{8}{32}[/tex] equals [tex]\frac{24}{32}[/tex] which simplifies to [tex]\frac{3}{4}[/tex] or 75%.

points lol 3929292910100100102

What is the volume of a cube with edge length 1/3 cm

Answers

Answer:

1/27 cm3

Step-by-step explanation:

(1/3)(1/3)(1/3)

Which of the following graphs represents the solution to the following system
of inequalities?
3x + 4y <12
2x - y24

Answers

Answer:

I am pretty sure it is most likely answer D.

Step-by-step explanation:

Hope this helps! Have a great day and good luck!

problem: which of the expression(s) below is greater than 5/2? Select all that apply

A) 2/5 ÷ 4/3

B) 4/3 ÷ 1/3

C) 5/3 ÷ 1/2

Answers

Answer:

C) 5/3 divided by 1/2

Step-by-step explanation:

5/2 = 2.5

A. 2/5 divided by 4/3 = 0.3

B. 4/3 divided by 1/3 = 1

C. 5/3 divided by 1/2 = 3.333

3.333 is bigger than 2.5

:)

An employee at a gift shop earns $72.00 for working 9 hours. At this hourly rate, what should the employee earn for a 40-hour work week?

Answers

Answer:

The employee would earn $320 for a 40-hour work week.

Step-by-step explanation:

Given

Total Earning amount = $72.00Total Time taken = 9 hours

To determine

We have to find the employee's earning earn for a 40-hour work week.

First Step

Determining the hourly rate

In order to determine the hourly rate, the first step we need to do is to divide the earning amount by the total number of hours.

Hourly rate = Total Earning amount / Total Time taken

                   = $72.00 / 9 hours

                   = $8.00 per hour

Second Step

Determining the employee's earning earn for a 40-hour work week.

As we have already determined that employee is earning $8.00 per hour.

i.e.

Hourly rate = $8.00 per hour

In order to determine the employee's earning for a 40-hour work week, all we need is to multiply the hourly rate i.e. 8 with 40.

Thus,

Earning for 40-hour work week = Hourly rate × 40

                                                     = 8.00 × 40

                                                     = $320

Therefore, the employee would earn $320 for a 40-hour work week.

y + 2x = -1

y = 1/2x + 4

Answers

Answer:

x = -1

y = 3

Step-by-step explanation:

y + 2x = -1

y = 1/2x + 4

(1/2x + 4) + 2x = -1

1/2x + 2x + 4 = -1

2 1/2x + 4 = -1

2 1/2x = -1 - 4

2 1/2x = -5

x = -5 / 2 1/2

x = -2

y + 2x = -1

y + 2(-2) = -1

y - 4 = -1

y = -1 + 4

y = 3

21x-9+27=180 what is x?​

Answers

The value of X is 69 lol get rekt
Other Questions
True or false questions? Most metal elements are brittle and do not conduct electricity. True or FalseAny element can be identified by counting the protons in its neucleus. True or FalseAll Earths matter is made from the combination of about 100 elements. True or false Where are the black dots located at ?!! What is the formula for a proportional relationship how many moles are in a 25.0 grams of carbon dioxide WILL GIVE BRAINLIEST, PLEASE ANSWER QUICKLY.Match the original expression containing both fractions and decimals to its equivalent expression containing onlyfractions.Both fractions & decimals: ( ON THE LEFT OF PHOTO) A. 3/5 x 2.75B. 3/5 x 0.68C. 3/5 x 0.8Equivalent expression: (ON THE RIGHT OF PHOTO)A. 3/5 x 4/5B. 3/5 x 17/25C. 3/5 x 11/4 Why did Thomas Jefferson call the British the disruptors of our happiness? What is the area of the parallelogram? 9 cm 6 cm 8 cm I NEED HELP!!!... WHATS THE ANWSER FOR THIS?? A farm is to be built in the shape of Quadrilateral ABCD, as shown below. All four sides are equal.A rhombus ABCD is shown with diagonal AC equal to 12.6 feet and diagonal BD equal to 10.4 feet.What is the area of the farm? (1 point) Solve for Whhhhhhhhhhhhhhhhhhhhhw/4 =68 (ILL GIVE 100 POINTS AND EDIT IT AND MARK BRAINLIEST) Examine the diagram of the cell cycle. Which label identifies the stage in which the DNA is copied and the cell grows? W X Y Z What is the area of this triangle in the coordinate plane? PLEASE DO NOT COPY OFF ANY WEBSITES ANSWER IN YOUR OWN WORDSWhy have organisms evolved to have vestigial body parts? At university A, 46% of the undergraduate students are female. At university B, 52% of the undergraduate students are female. Suppose a random sample of 100 students from both schools was selected. Assume the sampling distribution of p hat Subscript Upper A Baseline minus p hat Subscript Upper B is approximately Normal.What is the probability that the proportion of females selected from university A is greater than the proportion of females selected from university B?If needed, use the z-table to answer the question.Report your answer to 3 decimal places. Why did the writers of the Constitution likely put rules in place that require thepresident to have approval of the Senate? The original price of a blender is $18.00. If the blender is discounted 25%, what is the new price? 4) Justin had 32 coins in nickels and quarters. He had 8 more quarters than nickels. How many ofeach type of coin did he have? How to get the density of this unknown liquid? Members of a cultural group Share:A. the same name.B. values and interests.c. a householdD. property Here are some values of sequence Q. Write a recursive definition for the sequence. n Q(n) 1 33 87 18