When the sample mean lies relatively far away from µ0 in a hypothesis test, the decision should be to reject the null hypothesis.


When the sample mean lies relatively far away from µ0 in a hypothesis test, the decision should be to reject the null hypothesis.


True

False

Answer:

Step-by-step explanation:

v = √(2e / m)

The number of times that the spaceship can trave is 7.6 times

From the information, light travels at the speed of about 1.9×10^6 miles per second. Suppose a spaceship is able to travel at the speed of light. If the distance around Earth along the Equator is about 2.5×10^5 miles.

Therefore, the number of times that the spaceship can travel will be:

= 1.9 × 10^6 / 2.5 × 10^5

= 7.6

It can travel 7.6 times.

Learn more about numbers on:

brainly.com/question/25734188

#SPJ1

Answer:

a > 6

Step-by-step explanation:

[tex]a-2 > 4\\=a-2+2 > 4+2\\a > 6[/tex]

The equation of a straight line that is parallel to y = 2x -8 and passes through the point (0,-3) is  y=2x-3 .

The general equation of straight line is of the form y=mx+c where m is the slope of the equation and c is the y-intercept of the equation.

The slope is defined as the tangent of the angle made by the line with the positive direction of x axis.

he y-intercept of a straight line is the point where the graph passes the y-axis.

The given equation of the line is y=2x-8. Comparing the given equation with the general equation of a straight line we can conclude that the slope of the line is 2.

Two parallel lines have the same slope . Therefore the slope of the line parallel to y = 2x -8 is also 2.

We know that if a line with slope m passes through(x₁, y₁) then the equation of the line is given by

y-y₁=m(x-x₁)

The required line passes through (0,-3)

∴putting the values we get:

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

or, y+3=2x

or, y=2x-3

Therefore the line parallel to  y = 2x -8 and passing through the point (0,-3) is y=2x-3.

To learn more about straight lines visit:

https://brainly.com/question/21511618

#SPJ9

The total capacity will be 8 2/5 liters.

From the information, the bottles wee filled with 6/5 liters each.

Therefore, the capacity will be:

= Number of drums × Quantity

= 7 × 6/5

= 42/5..

= 8 2/5 liters.

Therefore, the total capacity will be 8 2/5 liters.

Learn more about fractions on:

brainly.com/question/17220365

#SPJ1

The simplification of the expression 3a(15 + 3 - 3²) + 7a(8/4) gives 41a

An equation is an expression that shows the relationship between two or more numbers and variables.

Given the equation:

3a(15 + 3 - 3²) + 7a(8/4)

Simplifying the exponents:

3a(15 + 3 - 9) + 7a(8/4)

Simplifying the terms in the bracket:

3a(9) + 7a(2)

Opening the parenthesis:

27a + 14a

Adding:

= 41a

The simplification of the expression 3a(15 + 3 - 3²) + 7a(8/4) gives 41a

Find out more on equation at: https://brainly.com/question/13763238

#SPJ1

Answer: The answer is  6x^4-4x

Step-by-step explanation:

Answer: 2

Step-by-step explanation:

I stitched a photo of the solution.

Answer:

about 4.89% is the percentage of population under 20 in Japan 2018

B lost the election by 15,840 votes.

Since A got 132000+12% of 132000 votes=147840 votes.

The mean of the set of numbers is 4362.92

The median is 4164.5

The mode is 0.

It should be noted that the mean is the average sat of numbers. The addition of the numbers is 52355 and there are 12 numbers.

The mean will be:

= 51355 / 12

= 4362.92

The median is the number in the middle. This will be:

= (3838 + 4491)/2

= 4164.5

The mode is 0 since the observations were only once.

Learn more about mean on:

brainly.com/question/1136789

#SPJ1

Answer: $25

Step-by-step explanation:

t = t-shirts

3t + 15 = 90

3t = 75

t = 25

The factors of the polynomial 3x² + 4x - 4 are (3x - 2) and (x + 2)

An equation is an expression that shows the relationship between two or more numbers and variables.

Polynomial is an expression that involves the operations of addition, subtraction, multiplication of variables.

Given the polynomial:

3x² + 4x - 4

Factorizing the polynomial gives:

= 3x² + 6x - 2x  - 4

= 3x(x + 2) - 2(x + 2)

= (3x - 2)(x + 2)

The factors of the polynomial 3x² + 4x - 4 are (3x - 2) and (x + 2)

Find out more on equation at: https://brainly.com/question/13763238

#SPJ1

Answer:

okay!

Step-by-step explanation:

3x5=15+4=19 so I think 10 5 5 10 hope it he,ped I tried!

we conclude that the equation x + 10 = 5 has only one solution, which is x = -5

Here we have the linear equation:

x + 10 = 5

In general, linear equations have only one solution, but let's solve this to see how many solutions it has.

If we subtract 10 in both sides of the linear equation, we will get:

x + 10 - 10 = 5 - 10

x = -5

So there is a single solution, which is x = -5.

Then we conclude that the equation below has only one solution.

If you want to learn more about linear equations:

https://brainly.com/question/1884491

#SPJ1

The solution set in interval notation [7, ∝)

The compound inequality is given as:

x+8 ≥ 9 and 2x − 6 ≥ 8

Take the like terms

x ≥ 9 - 8 and 2x ≥ 8 + 6

Evaluate the like terms

x ≥ 1 and 2x ≥ 14

Divide by 2

x ≥ 1 and x ≥ 7

The solution set of x ≥ 7 is greater than x ≥ 1

So, we have

x ≥ 7

In interval notation, it is [7, ∝)

Hence, the solution set in interval notation [7, ∝)

Read more about inequality at:

https://brainly.com/question/24372553

#SPJ1

Answer:

Step-by-step explanation:

(2/1)(2/9) = (-4/5m)

4/9 = (-4/5m)

(-5/4)4/9 = ((-4/5)(-5/4))m  cancel out common factor on both sides

       -5/9 = M  or M = -5/9  use symmetric property of equality either one is fine for answer.

Answer:

5 x 10^-5

2.5 x 10^-3

0.02

0.0016

Step-by-step explanation:

The number of miles that he walked is 4.5 miles. Then the number of laps that your friend walks will be 3 laps.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

A 9/10 miles long walkway around the lake. In the morning you walk three laps around the lake, and in the evening you walk two. On a 1 1/2 mile track, your companion walks the same overall distance as you do.

The number of miles that you walked will be

⇒ 9/10 x (3 + 2)

⇒ 9 x 5 / 10

⇒ 4.5 miles

Then the number of laps that your walk will be

⇒ 4.5 / (1 1/2)

⇒ 4.5 / (3/2)

⇒ 4.5 x 2 / 3

⇒ 3 laps

The number of laps that your friend walks will be 3 laps.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ1

[tex]distance = |x-y| \\ where \: x \: and \: y \: are \: any \: two \: numbers[/tex]

It doesn't matter which number you put first as long as you don't forget your absolute value.

If you don't want to put the absolute value, the equation becomes:

[tex]distance = x-y \\ where \: x \: and \: y \: are \: any \: two \: numbers \\ under \: condition \: that \: x > y[/tex]

[tex]distance = 16 - ( - 8) = 16 + 8 = 24 \\ distance = |16-(-8)|=|16+8|=|24|=24 \\ or \\distance = | - 8-(16)|=| - 8 - 16|=| - 24|=24[/tex]

Last week, Ella worked 16 hours after school and 8 hours before school using the concept of algebraic equations.

The equality of two mathematical expressions is demonstrated by a mathematical statement called an equation.

Algebraic equations in mathematics frequently have one or more variables.

Given: Ella makes $11.25 per hour before school and $11.75 per hour after.

Total earnings of Ella from = $278

Let x be the number of hours Ella worked before school.

Let y be the number of hours Ella worked after school.

11.25x + 11.75y = 278

Given that she works twice as long after school, it follows that

y = 2x

Substituting in the equation, we get

11.25x + 11.75(2x) = 278

11.25x + 23.5x = 278

34.75x = 278

x = 8

Similarly, y= 2x

y = 16

Ella accordingly worked 16 hours after school and 8 hours before school.

To learn more about mathematical equations, visit:

https://brainly.com/question/971918

#SPJ9

Answer:5/3

Step-by-step explanation:

first u need to change is mixed fraction in to normal fraction

3 1/3-5

3 1/3 means 3*3+1 =10

therefor 10/3-5

u need to find the lcm or the common for the two factor (3 and 1 )

the lcm is 3

so 10-5/3 =5/3

The required polynomial function is x^4 + 8x³ + 22x² + 24x + 9

In this question,

We have been given  the zeros of a polynomial and the degree of a polynomial.

We need to find the polynomial of degree 4 and has zeros x = -3, -1

If a polynomial function f(x) has zeros x = -3, x = -1, then it has factors

(x + 3), (x + 1).

If these were its only factors, then polynomial would be a quadratic.

This means, both the zeros must be of multiplicity 2.

So, the roots of the polynomial must be of the form f(x) = (x + 3)²(x + 1)²

f(x) = (x + 3)²(x + 1)²

f(x) = (x² + 6x + 9)(x² + 2x + 1)

f(x) = x^4 + 8x³ + 22x² + 24x + 9

Therefore, the required polynomial function is x^4 + 8x³ + 22x² + 24x + 9

Learn more about the polynomial function here:

https://brainly.com/question/19067504

#SPJ1

Answer:

1026.9

Step-by-step explanation:

Use a calculator!

Answer:

1026.9

Step-by-step explanation:

Line the two numbers up, and start adding from the tenths place and carry numbers if needed. This could also be done with a calculator or online.

The arithmetic mean of a given data is the sum of all observations divided by the number of observations.

For example, a cricketer's scores in five ODI matches are as follows: 12, 34, 45, 50, 24. To find his average score in a match, we calculate the arithmetic mean of data using the mean formula:

Mean = Sum of all observations/Number of observations

Mean = Sum of all observations/Number of observations

Mean = (12 + 34 + 45 + 50 + 24)/5

Mean = 165/5 = 33

The value of the middlemost observation, obtained after arranging the data in ascending or descending order, is called the median of the data.For example, consider the data: 4, 4, 6, 3, 2. Let's arrange this data in ascending order: 2, 3, 4, 4, 6. There are 5 observations. Thus

median = middle value i.e. 4.

suppose Given data:

0, 40, 60, 70, 75, 80, 85, 95, 95, 100

a)Mean without '0' = 40+ 60+ 70+ 75+ 80+ 85+ 95+ 95+ 100/9

                           = 700/9

                         = 77.777

Median without '0' = 80

Mean with ' 0' = 0+ 40+ 60+ 70+ 75+ 80+ 85+ 95+ 95+ 100/10 = 70

Median with '0' = 80

b)standard deviation= 18.121673811445. (without '0')

standard deviation with 0 = 28.982753492379

to know more about mean median mode;

visit;brainly.com/question/300591

#SPJ9

Answer:By adding a constant value to every salary amount, the measures of

central tendency are increased by the amount, while the measures of

dispersion, remains the same

The correct responses are;

(a) The shape of the data remains the same

(b) The mean and median are increased by $1,000

(c) The standard deviation and interquartile range remain the same

Reasons:

The given parameters are;

Present teachers salary = Between $38,000 and $70,000

Amount of raise given to every teacher = $1,000

Required:

Effect of the raise on the following characteristics of the data

(a) Effect on the shape of distribution

The outline shape of the distribution will the same but higher by $1,000

(b) The mean of the data is given as follows;

Therefore, following an increase of $1,000, we have;

Therefore, the new mean, is equal to the initial mean increased by 1,000

Median;

Given that all salaries, , are increased by $1,000, the median salary, , is also increased by $1,000

Therefore;

The correct response is that the median is increased by $1,000

(c) The standard deviation, σ, is given by ;

Where;

n = The number of teaches;

Given that, we have both a salary, , and the mean, , increased by $1,000, we can write;

Therefore;

; The standard deviation stays the same

Interquartile range;

The interquartile range, IQR = Q₃ - Q₁

New interquartile range, IQR = (Q₃ + 1000) - (Q₁ + 1000) = Q₃ - Q₁ = IQR

Therefore;

The interquartile range stays the same

Step-by-step explanation: