Answers
Answer:
Yes, both of them are correct.
Step-by-step explanation:
I don't have enough time to explain, sorry!!
Have a wonderful day c:
Related Questions
An airline promotion to business travelers is based on the assumption that two-thirds of business travelers use a laptop computer on overnight business trips. a. State the hypotheses that can be used to test the assumption. H 0: p Select H a: p Select b. What is the sample proportion from an American Express sponsored survey that found 355 of 546 business travelers use a laptop computer on overnight business trips
Answers
Answer:
a
The null hypothesis is [tex]H_o : p = 0.67[/tex]
The alternative hypothesis is [tex]H_a : p \ne 0.67[/tex]
b
The sample proportion is [tex]\^ p = 0.65[/tex]
Step-by-step explanation:
From the question we are told that
The sample size is n = 546
The number of people that use a laptop overnight is [tex]k = 355[/tex]
The population proportion is [tex]p = \frac{2}{3} = 0.67[/tex]
Generally
The null hypothesis is [tex]H_o : p = 0.67[/tex]
The alternative hypothesis is [tex]H_a : p \ne 0.67[/tex]
Gnerally the sample proportion is mathematically represented as
[tex]\^ p = \frac{ k}{n}[/tex]
=> [tex]\^ p = \frac{ 355}{546}[/tex]
=> [tex]\^ p = 0.65[/tex]
The product of which expression contains four decimal places?
Answers
Answer:
D.) 14.2*0.784
Step-by-step explanation:when you calculate it, there is 4 numbers behind the decimal point.
Suppose that E and F are points on the number line. If EF=5 and F lies at -3, where could E be located?
Answers
Answer:
There are two possible locations. E could be located in either -8 or 2.
Step-by-step explanation:
The number line is a one-dimensional graphing model for real numbers, in which each element is represented by points. Under this system, there are two directions:
[tex]-x[/tex] - Left semiaxis that corresponds to negative real numbers.
[tex]+x[/tex] - Right semiaxis that corresponds to positive real numbers.
Both semiaxis are divided by origin, which represents the real number zero.
Let E and F points on the number. If we know that [tex]F = -3[/tex] and [tex]EF = 5[/tex], there are two choices for the location of E. That is:
[tex]E_{1} = F+EF[/tex]
[tex]E_{1} = -3+5[/tex]
[tex]E_{1} = 2[/tex]
[tex]E_{2} = F-EF[/tex]
[tex]E_{2} = -3 -5[/tex]
[tex]E_{2} = -8[/tex]
There are two possible locations. E could be located in either -8 or 2.
Three times a number, x, increased by four is equal to five times the number, x. Which equation can be used to solve for x?
3 x + 5 x = 4
3 x + 4 = 5 x
3 x = 4 + 5 x
3 x minus 4 = 5 x
Answers
Answer:
3 x + 4 = 5 x
Step-by-step explanation:
just read it the words slowly and write it down as you hear it
The numbers of regular season wins for 10 football teams in a given season are given below. Determine the range, mean, variance, and standard deviation of the
population data set
2, 9, 15, 4, 12, 9, 13, 6, 3, 10
The range is 13.
(Simplify your answer.)
The population mean is 8.3.
(Simplify your answer. Round to the nearest tenth as needed.)
The population variance is
(Simplify your answer. Round to the nearest hundredth as needed.)
Answers
Answer:
Range = 13
Mean = 8.3
Variance = 17.61
Step-by-step explanation:
Given the population dataset :
2, 9, 15, 4, 12, 9, 13, 6, 3, 10
1.) Range : (maximum - minimum)
Maximum = 15 ; minimum = 2
Range = (15 - 2) = 13
2.) population mean (μ) :
μ = ΣX / n
n = sample size
μ = (2 + 9 + 15 + 4 + 12 + 9 + 13 + 6 + 3 + 10) / 10
μ = 83 / 10
μ = 8.3
3.) Population variance (s²)
Σ(x - μ)² / n
=[(2 - 8.3)^2 + (9 - 8.3)^2 + (15 - 8.3)^2 + (4 - 8.3)^2 + (12 - 8.3)^2 + (9 - 8.3)^2 + (13 - 8.3)^2 + (6 - 8.3)^2 + (3 - 8.3)^2 + (10 - 8.3)^2] / 10
s² = 176.1 / 10
s² = 17.61
2 ÷ 2/9 idk i need help.
Answers
Answer: 9
Step-by-step explanation:
I calculated it
how to divide
Please i need help!
Answers
If i read a book for 25mins and it took me 1/23 longer to read how long did it take me to read the second book
Answers
25×1/23=1.08695652174.
25+1.08695652174=26.08695652174
Select the three choices below that are equal to 4 x 5
Answers
Answer:
10+10
10x2
40/2
Step-by-step explanation:
Which two options describe the standard deviation?
4The variance square
1The extreme distance from the mean expected from the data points
2The square root of the variance.
3The average distance from the mean expected of the data.
Answers
Answer:
2 and 3
Step-by-step explanation:
that's just the definition of stdev
Fran is making pancakes. The recipe for the pancakes calls for 1/8 teaspoon of salt for every 3/4 cup of flour. Fran makes an amount of pancakes that needs 18 cups of flour. How much salt, in teaspoons, does Fran need to use for the pancakes?
Answers
Answer:
3 teaspoon
Step-by-step explanation:
If for every 3/4 cup of flour we will need 1/8 teaspoon of salt, then:
1/8 teaspoon = 3/4 cup of flour
To get the amount of teaspoon needed for 18cups we will say:
x teaspoon = 18 cups
Solving both equalities for x:
1/8 teaspoon = 3/4 cup of flour
x teaspoon = 18 cups
Cross multiply
3/4 * x = 18 * 1/8
3x/4 = 18/8
cross multiply again
3x*8 = 4*18
24x = 72
x = 72/24
x = 3
Hence Fran needs 3 teaspoon of salt fir 18cups of flour
0 = 2x2 – 8x + 11
Solve the equation using quadratic formula.
Answers
Answer:
There are two solutions
1.x =(8-√152)/4=2-1/2√ 38 = -1.082
2.x =(8+√152)/4=2+1/2√ 38 = 5.082
Step-by-step explanation:
I needs help how do i shave my ba. lls
Answers
Answer:
WHAT THE FAWK SRE YOU SAYING AND WRITING
Answer:
truste me dont!
Step-by-step explanation:
What is 4.035 written in expanded form
Answers
Answer: One of these should help
Step-by-step explanation:
Expanded Notation Form:
4
+ 0.0
+ 0.03
+ 0.005
Expanded Factors Form:
4 × 1
+ 0 × 0.1
+ 3 × 0.01
+ 5 × 0.001
Expanded Exponential Form:
4 × 100
+ 0 × 10-1
+ 3 × 10-2
+ 5 × 10-3
Answer:
4+0.03+0.005
Step-by-step explanation:
PLEASEE HELP ME
Roland’s remote control boat has a max speed of 25 miles per hour. How many miles can Roland’s boat travel in 1/3 of an hour?
Answers
We can set this problem up as a ratio (or as a proportional type of problem).
When somebody is traveling 25 miles per hour, for every hour passed they have rode (or driven) 25 miles. This ratio can be set up as 25:1. We want to get it to where the 1 in the ratio is 1/3 because we want it to be 1/3 of an hour.
When dealing with ratios, you always want to do one thing on both sides of it is ever changed. In this case we want to get 1 to 1/3. To get 1 to 1/3 we need to DIVIDE by 3 because 3 will be under 1, therefore 1/3.
The ratio will look like 25:1/3 WHEN IT IS INCOMPLETE. We then need to remember we need to do everything on one side to the other, therefore we need to divide 25 by 3 which will give us 8.333333 or 8 and 1/3 (8 1/3)
What is the equation of the line through (2,3) and (-1,-12)
Answers
Answer:
slope intercept: y=5x-7
Step-by-step explanation:
first you need slope: y2-y1/x2-x1
-12-3/-1-2=
-15/-3=
5
then plug into this formula: y-y1=m(x-x1)
y-3=5(x-2)
y-3=5x-10
y=5x-7
If the growth rate is 75%, which of the
following is the correct growth factor
a. 1.75
b. 75
C. 1.075
d. 1.0075
Answers
Answer:
A) 1.75
Step-by-step explanation:
75% = .75
Growth Factor = 1 + Growth Rate (decimal)
Growth Factor = 1 + .75
Growth Factor = 1.75
I hope this helps!
-TheBusinessMan
Show your work
−17x = −204
Answers
X=12
Millie Moo the cow can produce 14
gallons of milk in 3 days. How many gallons
of milk does Millie produce each day?
Round to the nearest hundredth if
necessary.
Answers
7th grade math help me plzzz
Answers
Answer:
a. -14
b. -150
c. -51
d. -2
e. 3
f. 5
There are 3,785 milliliters in 1 gallon, and there are 4 quarts in 1 gallon.
How many milliliters are in 3 gallons? Explain.
Answers
there are 11356.2 milliliters in 3 us gallons
One package of blackberries costs $3. How many packages of blackberries can you buy for $15?
Answers
Answer:
5 packages
Step-by-step explanation:
One package of blackberries cost $3
Let x represent the number of packages that will cost $15
1 = $3
x= $15
3x= 15
Divide both sides by the coefficient of x which is 3
3x= 15/3
x= 5
Hence 5 packages of blackberries will cost $15
3s (s - 2) =12s, please help me this. Thank you!
Answers
Answer:hbjnhbgfvrdfghjhgfdfghjhgfghjkl
What are the coordinates of the x-intercept of the line 2x-5y=10 ?
Answers
Answer:
(5, 0) is the x intercept.
Step-by-step explanation:
Given equation of the line is 2x - 5y = 10
For y-intercept of the line we find the value of y by substituting x = 0 in the given equation.
Similarly, for x-intercept we will substitute the value y = 0 and find the value of x.
2x - 5(0) = 10
2x = 10
x = 5
Therefore, y-intercept of the given line is (5, 0).
I NEED THIS ASAP I HAVE A TEST DUE 5 MIN AGO AND IF ITS ANY LATER THEN 15 MIN THEN I FAIL 15 POINTS FOR WHOEVER CAN GET ME THE RIGHT ANSWER!!!!!!!!!!!!
Tina's salsa class membership, which is $15, is deducted automatically from her bank account every month. Which expression shows the total deductions for the year?
Group of answer choices
(−$15) ÷ 12
(−$15) + 12
(−$15) − 12
(−$15) ⋅ 12
Answers
Answer:
(-15$) • 12
Step-by-step explanation:
Because your taking away 15$ from each month, and there's 12 month each year.
I explained each answer choice in the comments bellow.
Answer:
The Naswer is the Last one, D
Step-by-step explanation:
COLLE
past d
see co
A boat capsized and sank in a lake Based on an assumption of a mean weight of 131 lb, the boat was rated to carry 60 assengers (s the load lin was 7,860 lb).
After the boat sank, the assumed mean weight for similar boats was changed from 131 lb to 173 lb Complete parts a and below.
a. Assume that a similar boat is loaded with 60 passengers, and assume that the weights of people are normally distributed with a mea of 176 1 lb end a standard
deviation of 40.2 lb. Find the probability that the boat is overloaded because the 60 passengers have a mean weight greater than 131 ||
The probability is
(Round to four decimal places as needed)
b. The boat was later rated to carry only 17 passengers, and the load limit was changed to 2,941 lb. Find the probability t at the boat is erloaded bause the
mean weight of the passengers is greater than 173 (so that their total weight is greater than the maximum capacity of 29 1 lb)
The probability is
(Round to four decimal places as needed)
Do the new ratings appear to be safe when the boat is loaded with 17 passengers? Choose the correct answer below.
sees o
ents
see sc
see sco
past do
O A. Because the probability of overloading is lower with the new ratings than with the old ratings, the new ratings appes to be safe
OB. Because there is a high probability of overloading, the new ratings appear to be safe when the boat is loaded with passengers
OC. Because there is a high probability of overloading, the new ratings do not appear to be safe when the boat is loaded with 17 passe ers:
Click to select your answer(s)
past due
Answers
Question 9 Of 1000 randomly selected cases of lung cancer, 841 resulted in death within 10 years. Construct a 95% two-sided confidence interval on the death rate from lung cancer. (a) Construct a 95% two-sided confidence interval on the death rate from lung cancer. Round your answers to 3 decimal places.
Answers
Answer:
0.818335 ≤ p ≤ 0.86366
Step-by-step explanation:
Given that:
Sample size (n) = 1000
Positive lung cancer = 841
n(p) = 841, p(p) = 841/1000 = 0.841
n(1 - p) = 1000 - 841 = 159
1 - p = 0.159
95% confidence interval
For a 95% confidence interval : z = 1.96
P ± z√p(1-p) / n
0.841 ± 1.96 * √0.841(0.159) / 1000
0.841 - (1.96 * 0.0115636) = 0.818335344
0.841 + (1.96 * 0.0115636) = 0.863664656
0.818335 ≤ p ≤ 0.86366
can you answer these examples?
Answers
Answer:
1.The coefficient is 6.3 and the terms are 5 and 6.3s
2.The coefficient is (0.87)^t and the terms are 35,000 and (0.87)^t
Step-by-step explanation:
A coefficient is a number pared with a variable and the terms are all of the numbers that make up the expression
At the Fidelity Credit Union, a mean of 7.1 customers arrive hourly at the drive-through window. What is the probability that, in any hour, less than 2 customers will arrive
Answers
Answer:
The probability that, in any hour, less than 2 customers will arrive is 0.0067.
Step-by-step explanation:
The random variable X can be defined as the number of customers arriving hourly at the drive-through window at the Fidelity Credit Union.
The random variable X describes a finite number of occurrences of an event in a fixed time interval.
The random variable X follows a Poisson distribution with parameter λ = 7.1.
The probability mass function of X is:
[tex]P(X=x)=\frac{e^{-7.1}(7.1)^{x}}{x!};x=0,1,2,3...[/tex]
Compute the probability of less than 2 customers arriving as follows:
[tex]P(X<2)=P(X=0)+P(X=1)[/tex]
[tex]=\frac{e^{-7.1}(7.1)^{0}}{0!}+\frac{e^{-7.1}(7.1)^{1}}{1!}\\\\=0.00083+0.00586\\\\=0.00669\\\\\approx 0.0067[/tex]
Thus, the probability that, in any hour, less than 2 customers will arrive is 0.0067.
How many pounds are in 80 kilograms?
Answers
Answer:
176.37 pounds are in 80 kilograms
Step-by-step explanation:
The kilogram, or kilogramme, is the base unit of weight in the Metric system. It is the approximate weight of a cube of water 10 centimeters on a side.
A pound is a unit of weight commonly used in the United States and the British commonwealths. A pound is defined as exactly 0.45359237 kilograms.
