In the past, the mean running time for a certain type of flashlight battery has been 9.7 hours. The manufacturer has introduced a change in the production method and wants to perform a hypothesis test to determine whether the mean running time has increased as a result. The hypotheses are: H 0: μ = 9.7 hours H a: μ > 9.7 hours where μ is the mean running time of the new batteries . Explain the meaning of a Type I error.

Answers

Answer 1

Answer:

Step-by-step explanation:

From the information given:

[tex]\mathbf{H_o: \mu = 9.7 \ hours}[/tex]

[tex]\mathbf{H_1: \mu > 9.7 \ hours}[/tex]

The type 1 error is rejecting [tex]\mathbf{H_o}[/tex] when

The meaning of Type 1 error is rejecting the claim that the mean running time is 9.7 hours when actually the mean running time is greater than 9. 7 hour.


Related Questions

Find m Of the function

Answers

Answer:

m=1

Step-by-step explanation:

slope formula is y=mx-b

whenever a variable is by itself, the coefficient is always 1

Please help me with this question.​

Answers

Answer:

Area = 43.26

Step-by-step explanation:

There is a short way to do this.

Area = 1/2 s*t * Sin(R)

s = 14

t = 7

Area = 1/2 * 14 * 7 * Sin(62)

Area = 7 * 7 * sin(62)

Area = 49 * sin(62)

Area = 43.26

==================

There is another way you could do this.

Use the Cos law to find r

Then use Heron's formula to find the area. Trust me, you don't want to do that.

Doing the way I suggested gives 43.19. The difference is in what I did in the rounding. But I wouldn't want to type all the numbers.

Increase £16470.45 by 3.5% by 2DP

Answers

Answer:

17,046.92 i think

Step-by-step explanation:

Does anyone know the answer to 6X +18 = h (3X +9)

Answers

if your solving for x it’s -3 but if your solving for h it’s 2

The problem requires to show the work, and provide justification statements that are mathematically correct explaining the reasoning.

Answers

Answer:

Step-by-step explanation:

From the table you have points (-1, 3) and (2, 9)

general equation

y-y1 = m (x-x1)

the slope m= (y2-y1) / (x2-x1) = 9-3/ 2+1 = 6/3 =2

so the equation shhould be

y+1=2(x-3)

Sydney equation is wrong because her slope is wrong 1/2

Simplify the expression: *
5(-2n + 4) + 2(n + 3)

Answers

Answer:

26- 8n

Step-by-step explanation:

-10n + 20 + 2n + 6

-10n+2n +6 +20

-8n + 26

Best regards

Answer:

-8n+26

Step-by-step explanation:

Help me please :) Please and thanks

Answers

Answer:

1661.9

Step-by-step explanation:

Write the equation in slope intercept form of the line between the points (2,4) (6,-8) simplify your answer as much as possible.

Answers

Answer: Answer And explanation in picture

Step-by-step explanation:

1st person to answer will receive brainliest!!!!

Answers

Answer:

ok

Step-by-step explanation:

:D

8x+5=61 immma workk out fo yall
-5 -5
8x =56

Answers

Answer:

x = 7

Step-by-step explanation:

8x + 5 = 61

8x = 56

x = 7

What is the value of $ + 2x?, when x = 3?

Answers

6 I’m pretty sure lol

Answer: 6

Step-by-step explanation:

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

(-3.2)(-1.72) Write your answer to the nearest tenth

Answers

Answer:

5.5

Step-by-step explanation:

Answer: actually 5.504 rounded to 5.5

Step-by-step explanation:

Solve -2p + 10p = 7p for p.

Answers

Answer:

Step-by-step explanation:  

-2x7+ 10x7

-14+70

70-14 ( there were more positives than negatives. so subtract the smaller number and you get)

56

no variable because it was replaced with 7.

Gabe is analyzing the plane ticket prices over the years. Comparing the cost of a plane ticket this year to last year, ticket prices are 12% higer than they were last year. Create an expression that represents the difference between this year and last year

Answers

Answer:

The difference in prices is 0.12x where x is the last year’s price

Step-by-step explanation:

Here, we want to create an expression

Let the price last year be x

12% more this year mean;

x + 12% of x

= x + 0.12x = 1.12x

So the difference between this year and last year will be;

1.12x - x = 0.12x

What is the value of x?
X+4/9=3/4

Answers

Answer:

Answer

4.0/5

10

Americ

Ambitious

1.5K answers

627.6K people helped

x + 4/9= 3/4

subtract 4/9 from both sides

x= 3/4 - 4/9

change to common denominators

x= 27/36 - 16/36

subtract numerators only

x= 11/36

ANSWER: (A) 11/36

Hopes this helps :)

Answer:

Exact Form:  x = 11 / 36

Decimal Form: x = 0.305555

Step-by-step explanation:

sue has 2 cats.
each cat eats 1/4 of a tin of cat food each day
sue buys 8 tins of cat food
has sue bought enough cat food to feed her 2 cats for 14 days?

Answers

Yes sue bought enough cat food

Sales at an airport shop has increased by 25 transactions to a total of 400 transactions per day. What is the increased transaction percentage?

Answers

Answer:

6.66

Step-by-step explanation:

I HAVE A TIME LIMIT PLZ HELP

Read the hypothetical situation below and answer the question that follows. On Independence Day, Allison’s grandfather tells her a story about his experience in the Army. Allison is so moved by the story that she decides to enlist in the Army the next day. The above story is an example of a __________ moment inspiring an act of good __________.

A.
patriotic . . . citizenship
B.
patriotic . . . prejudiced
C.
stereotype . . . patriotism
D.
open-minded . . . equality

Answers

Answer:

is A

Step-by-step explanation:

Answer:

A.  patriotic . . . citizenship

Step-by-step explanation:

Edge 2020 or Time4learning

The setup fee for a photo book is $35. The papwe is an additional charge of $0.80 per page. What is the greatest number of pages that a book can have if the total bill is to be less than $50?
Please help, thanks! ☺

Answers

Answer:

18 pages

Step-by-step explanation:

18 pages would cost $14.40 and the you add $35 for the setup fee. This makes the total $49.4 and no more pages can be added because it would cost too much.

Andre and Alina are each saving money. Andre starts with $100 in a savings account and adds five dollars per week Elena starts with $10 in her savings account and add $20 each week after how many weeks for Andre and Elena have the same amount of money in their savings account

Answers

Answer:

6 weeks

Step-by-step explanation:

From the question:

Let us represent the number of weeks as x

Andre and Alina are each saving money.

For Andre:

Andre starts with $100 in a savings account and adds five dollars per week

$100 + $5 × x

= 100 + 5x

For Elena

Elena starts with $10 in her savings account and add $20 each week

$10 + $20 ×x

= 10 + 20x

The next step is to equate both algebraic expression for Andre and Elena together

Hence:

100 + 5x = 10 + 20x

Collect like terms

100 - 10 = 20x - 5x

90 = 15x

x = 90/15

x = 6 weeks

Hence, after 6 weeks Andre and Elena would have the same amount of money in their savings account.

Should’ve paid attention, anyone got an answer! Thank you

Answers

Answer:

4x^4

Step-by-step explanation:

Hope this helps!! Please consider marking brainliest! Have a good one!!

Answer:

4x^4

Step-by-step explanation:

Hope this helps and have a nice day :)

HELP MEEE!
7th grade mathhhh

Answers

Answer: Its C

Step-by-step explanation:

Since 2/3 and 1/5 are smaller than 1 but bigger than 0 they will be in between 0 and 1.

2/3 is closer to 1 and 1/5 is closer to 0

a student purchased 7 binders for a total of $8.61. Write an equation that can be used to find the cost of each binder,n, in dollars. What is the cost ,in dollars, of each binder?

Answers

Answer:

$1.23

Step-by-step explanation:

divide 8.61 by 7 binders to get the final answer of $1.23

please help meeeeeeeeeeee

Answers

Answer:

78°

Step-by-step explanation:

42+60=102

180-102=78

Answer:

Step-by-step explanation:

first find the final interior angle since we need it to find the exterior

60 + 42 = 102

180 - 102 = 78 degrees

then we just have to do 180 - 78 bc we have a straight line and straight lines are always 180 degrees

180 - 78 = 102 degrees

x = 102

you honestly could just take the 2 values you already know and add them and use that lol

hope this helps <3

I keep confusing myself trying to solve this ​

Answers

Answer:

No

Step-by-step explanation:

Each separate line could be part of a different plain.

Answer:

If two distinct planes intersect, then their intersection is a line. Through any two points, there is exactly one line. If two points lie in a plane, then the entire line containing those points lies in the plane.

Step-by-step explanation:

Based on the housing data below, use linear regression to estimate a fair price for a 1900 ft2 home. Square Feet House Price (in thousands) 1400 1700 105 135 1500 183 O A. $140,000 B. $156,000 C. $160,000 D.- $176,000​

Answers

The solution is Option D.

The fair price of a 1900 ft² home is given by the equation A = $ 176,000

What is an Equation of a line?

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the square feet of the house be represented as x

Let the number of houses be represented as y

Let the first point be P ( 1400 , 105)

Let the second point be Q ( 1500 , 183 )

Now , the slope of the equation is given by

Slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Slope m = ( 183 - 105 ) / 1500 - 1400

Slope m = 78 / 100

Slope m = 0.78

Now , the equation of line is y - y₁ = m ( x - x₁ )

Substituting the values in the equation , we get

y - 1400 = 0.78 ( x - 105 )

On simplifying the equation , we get

y - 1400 = 0.78x - 81.9

Adding 1400 on both sides of the equation , we get

y = 0.78x + 1318.1

Therefore , the value of y is 0.78x + 1318.1

Hence , the equation of line is 0.78x + 1318.1 and the price is $ 176,000

To learn more about equation of line click :

https://brainly.com/question/14861637

#SPJ2

Answer:

Step-by-step explanation:

b i think

if the original quanity is 10 and the new quanity is 12, what is the percent increase

Answers

Answer:

+20%

Step-by-step explanation:

None

Answer:

Step-by-step explanation:

20%

what is the surface area of a cube with a base edge of 8 mm

Answers

Answer:

8 mm

Step-by-step explanation:

A=3.84×10-4m²

2/3=6/? means
2*6=3*?
2*3=6*?
2*?=3*6
2*?=3*?

Answers

Answer:

2/3 = 6/9

Step-by-step explanation:

2 x 3 = 6 so then you have to multiply 3 with 3 which is 9. (because the numerator and denominator should be multiplied by the same number.)

So thats why 2/3 = 6/9 is correct.

A walking path is being built along the diagonal of a
rectangular park. Determine the length of the path, to the
nearest metre.
A 135 m
B 97 m
C 66 m
D 58 m​

Answers

Answer:

C

Step-by-step explanation:

BRAINLIEST PLEASE

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