Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 71.3 Mbps. The complete list of 50 data speeds has a mean of x=18.29 Mbps and a standard deviation of s=20.59 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:

Kindly check explanation

Step-by-step explanation:

Given the following :

Highest speed measured = 71.3 Mbps

Mean speed (x) = 18.29 Mbps

Standard deviation (s) = 20.59

a.) What is the difference between​ carrier's highest data speed and the mean of all 50 data​ speeds?

(71.3 - 18.29) Mbps = 53.01 Mbps

b. How many standard deviations is that​ [the difference found in part​ (a)]?

53.01 / 20.59 = 2.57

c. Convert the​ carrier's highest data speed to a z score.

Zscore = (score - mean) / standard deviation

Zscore = (71.3 - 18.29) / 20.59

Zscore = 2.57

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?

Yes, this highest speed is significant as it's Zscore is higher than 2 (2.57).


Related Questions

ASAP A cylinder has a base with a diameter of 6 cm, and a height of 12 cm. What is its volume? ASAP

Answers

Answer:

V= 339.336 cubic cm i'm pretty sure :)

Step-by-step explanation:

The freezing temperature of the water is 32 degrees Fahrenheit and the boiling temperature of water is 212 degrees Fahrenheit. Write an absolute value equation that represents the minimum and maximum temperature of liquid water. Use X to represent the temperature.

Answers

Answer:

90 = | x - 122 |

Step-by-step explanation:

Given;

maximum temperature, 212 °F

minimum temperature, 32 °F

First, determine the difference of both values;

212 - 32 = 180

Divide this value by 2

180/2 = 90

90 = | x - 212 + 90|

90 = | x - 122 |

where;

x is the temperature of water

Thus, the absolute value equation that represents the minimum and maximum temperature of liquid water is 90 = | x - 122 |

The sum of two consecutive integers is −181. Find the integers

Answers

Answer:

  -91, -90

Step-by-step explanation:

Their average is -181/2 = -90 1/2.  This value is halfway between the two integers, which are ...

  -91, -90

Answer:

-91,-90

Step-by-step explanation:

ALGEBRA 1 BRIDGING DIAGNOSTIC I SECTION 1 1 1 OF 10
The number of bottles a machine fills is proportional to the number of minutes the machine operates. The
machine fills 250 bottles every 20 minutes. Create a graph that shows the number of bottles, y, the
machine fills in x minutes
А A

Answers

Answer:

The answer is below

Step-by-step explanation:

Let the number of bottles be y and the number of minutes the machine operate be x.

Given that number of bottles be is proportional to the number of minutes the machine operate, hence:

y is proportional to x.

⇒ y α x

y = kx, where k is a constant

when the number of bottles (y) = 250, the time the machine operates (x) = 20 minute. Therefore:

y = kx

250 = 20k

k = 250/20

k = 12.5

Hence the relationship between x and y is given as:

y = 12.5x

Plotting the function y = 12.5x using geogebra

Put these numbers in order from least to greatest,
-2/25,-10,5/20,-6/40

Answers

Answer:

Order from Least to Greatest :

-10 < -6/40 < -2/25 < 5/20

Complete the pattern 0.095 9.5 950 95,000 9,500

Answers

Answer:

the next number is 9,500,000 each time you multiply the number by 100

Step-by-step explanation:

0.095×100=9.5

9.5×100=950

and so on good luck

A builder mixes one part of cement with four parts of sand to make mortar if he uses 100 pounds of sand how much is cement?

Answers

Answer:

25

Step-by-step explanation:

one part of 4 parts = 1/4

100 divided by 4 = 25

Find the value of x. *
Please help I’m really confused

Answers

Due to the Triangle Angle Sum Theorem, we know that the sum of the interior angles of a triangle is 180 degrees.

90 + 2x - 2 + x + 5 = 180 degrees.

Combine like terms.

3x + 93 = 180

Subtract 93 from both sides.

3x = 87

Divide both sides by 3

x = 29



For their wedding, Ben and Jen paid $12 for each guest's dinner. The total bill was $2256. How many guests did they have at their wedding?

Answers

Answer:

188

Step-by-step explanation:

Very easy and simple division problem. All we need to do is divide the total number (2256) by the amount that they paid (12). This will give us how many people they payed for. The equation looks like this:

2256 ÷ 12 = 188.

If you need to prove this you can do 188 x 12 to find out for yourself. (It also equals 2256 proving the point.)

188 is your answer.

Hope this helps and have a nice day!

Which of the following best describes the graph below?
27
1
1
2
A. It is not a function.
B. It is a function, but it is not one-to-one.
ОО ОО
C. It is a one-to-one function.
D. It is a many-to-one function

Answers

Answer:

c

Step-by-step explanation:

it goes in a curve and while that may be misleading there is no more than one x to y so it is considered a function

How are the following ratios equivalent? 4:5 and 8:10

Answers

Answer:

2 = 1

Step-by-step explanation:

2 = 1

4 = 2

6 = 3

8 = 4

Graph the line with the equation y
- 1x – 7.

Answers

Hey there!

[tex]Answer:\boxed{\text{Slope:}-1}\boxed{\text{y-intercept:}(0,-7)}[/tex]

Graph coming up right below!

Hope this helps!

[tex]\text{-TestedHyperr}[/tex]

What is the value of the correlation coefficient r of the data set?

Answers

Answer:

C

Step-by-step explanation:

A picture is photocopied by using a scale factor of 2. Each side of the photocopy of the picture is

Answers

Answer:

enlarged by a factor of 2

Step-by-step explanation:

you're welcome

What is the quotient of 525 divided by 15

Answers

Answer:

35

Step-by-step explanation:

525/15=35

The quotient when 525 is divided by 15 is 35.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

We know A number N divided by D with quotient Q and the remainder R can be written as,

N = DQ + R.

Given, 525 is divided by 15.

Therefore,

525 = 15×35 + 0.

So, The quotient when 525 is divided by 15 is 35.

learn more about numerical expressions here :

https://brainly.com/question/29199574

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what is -10+10(-12)÷6

Answers

Answer:

-30

Step-by-step explanation:

About 4/5 of all the orange juice in the world is produced in Brazil. About what percent of all the orange juice in the world is produced in Brazil?

Answers

Answer:

80%

Step-by-step explanation:

We first have to make this fraction into a percent

4/5 is equal to 80/100

80/100 is the same as 80% out of 100 so...

the answer is 80%

1) 13 + 3W - 9 + 16w

Answers

Answer:

4+19W

Step-by-step explanation:

You would just simplify the terms, 13-9=4 and 3W+16W=19W

Answer:

4+19w

Step-by-step explanation:

Combine all like-terms. So, do 13-9, which gives you 4. Then, combine 3w and 16w, which gives you 19w. Therefore, the answer is 4+19w. Hope this helped!

A bicyclist goes 9.8 miles/hour. How long will it take (time) to travel 49 miles ?

Answers

Answer:

aresrttl

Step-by-step explanation:

fdgfchgvhbjnkml,

The temperature was 61 degrees at sunrise.
By 2:00 PM, the temperature had risen
by 12 degrees. Find the temperature at
2:00 PM

Answers

The answer would be 73 degrees because 62 +12 = 73

The temperature at 2:00 PM will be 73 degrees

What is temperature ?

Coldness and hotness is measured by temperature which is one of the fundamental units of measurements.

Here, it is given that the temperature at sunrise was 61 degrees and it is find the temperature at 2 P.M which as increase by 12 degrees. Now calculating it by adding 61 degree with 12 degrees :

the temperature at 2:00 PM = 61 degrees + 12 degrees = 73 degrees

Read more about addition at:

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t-(-5) = 9
what’s the first step to solve the equation?

Answers

Answer:

Subtract 5 from each side  

( or add -5 to each side)

Step-by-step explanation:

t-(-5) = 9

t+5 = 9

Subtract 5 from each side

t +5-5 = 9-5

t = 4

pls answer fast (3/7 ÷ 1/2) ÷7/8​

Answers

Answer:

48/49

Step-by-step explanation:

jv

Answer:

Step-by-step explanation:

48/49

4(x-3)= -2(6-2x) solve equation

Answers

Answer:

( − ∞ , ∞ )

Step-by-step explanation:

Any value of  x  makes the equation true.

Satara was having fun playing poker. She needed the next two cards dealt to be hearts so she could make a flush (five cards of the same suit). There are 10 cards left in the deck, and three are hearts. What is the probability that the two cards dealt to Satara (without replacement) will both be hearts? Answer choices are in percentage format, rounded to the nearest whole number.

Answers

Answer:

7%

Step-by-step explanation:

Given the following :

Total Number of cards left in deck = 10

Number of hearts left in deck = 3

Probability = (required outcome / Total possible outcomes)

Required outcome = hearts card in deck

Two cards are to be dealt to Satara without replacement :

Probability of 1st card being hearts :

P(1st card being hearts) = required outcome / Total possible outcomes

P(1st card being hearts) = 3 / 10

Probability of 2nd card being hearts :

Since it is without replacement :

Required outcome = (3 - 1). = 2

Total possible outcomes = (10 - 1) = 9

P(2nd card being hearts) = 2 /9

Probability of the two cards being hearts :

(3 / 10 × 2/9) = 6 /90 = 0.0666

0.06666 × 100% = 6.66%

= 7% (nearest whole number)

(C) It passes through the points (0,5) and (1,8).

Answers

Answer:

Step-by-step explanation:

(8-5)/(1-0) = 3/1 = 3

y - 5 = 3(x -0)

y -5 = 3x - 0

y = 3x + 5

Select the story problem that this division problem represent 1/2 2/5

Answers

Answer:

12 is the correct answer of the question

Which of the following is true of a parallelogram? A.) Opposite sides are congruent. B.) The sum of its angle measures is 360°. C.) It always has four congruent angles. D.) It is also a rectangle.

Answers

Answer:

opposite side are congruenyt

Step-by-step explanation:

it always has four congruent angles

ut is also a rectangle

the sum of its angles measures is 360°

Answer:

I would say it’s either A or B but go with what you think is best :)

Step-by-step explanation:

What is the solution to x6 – 6x 5 + 15x 4 – 20x 3 + 15x 2 – 6x + 1 ≥ 0?

Answers

Answer: C all real numbers

Step-by-step explanation:

I got the answer right on Edge

Solve the equation.
0.95x +0.05(12-x) = 0.10(24)

Answers

Answer:

x=2

Step-by-step explanation:

0.95x +0.05(12-x) = 0.10(24)

Distribute

0.95x +0.6-0.5x= 2.4

add/subtract like terms

0.9x+0.6=2.4

subtract 0.6 from both sides

0.9x=1.8

Divide both sides by 9

0.1x=0.2

multiply both sides by 10

x=2

Hope this helps! Plz award Brainliest : )

If these four blue rectangles combined into
one, what word would they spell?

Answers

Answer:Help

Step-by-step explanation:

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