A baker is experimenting with a new brand of yeast. He bakes his first batch of bread using the old brand of yeast that he usually uses and a second batch using the new brand of yeast. After baking both batches of bread, he compares the height, texture, and taste of each batch.
Answers
Answer:
control group: second batch
explanatory variable: new brand of yeast
response variable: height, texture, and taste
Step-by-step explanation:
Answer:
Explanatory variable = new brand of yeast
Response variable = height, texture, and taste
Control group = first batch
**See screenshot of graded answer
Related Questions
The lifetime for a certain brand of widgets is normally distributed. A random sample of 25 widgets is taken and a sample mean lifetime of 520 hours with a standard deviation of 50 hours. Before taking the sample, researchers claimed that the mean lifetime of a widget was more than 500 hours. 1. null hypothesis:
2. the alternative hypothesis:
3. explain what test will be used and why?
Answers
Answer:
1. H0: u = 500
2. H1: u <500
3. One sample t test
Step-by-step explanation:
1. The null hypothesis in this question would be
H0: u = 500
2. The alternative hypothesis would be
H1: u < 500
3. The test that we are going to be using is the one sample t test. This test is used to test hypothesis. It would make a comparison of h0 to the mean of the sample. Now we are using this here because the sample standard deviation was given
Please help on this question
Answers
Answer: C
Step-by-step explanation:
Since she can speak more than 7, you can mentally get rid of A and B because the circles on the number line show less than or equal to and more than or equal to, and we already know she can speak more than 7 languages.
So between the less than or greater than symbol you need to pick the line that has the arrow pointing in the direction of the greater than symbol because she can speak more than 7 languages
The answer would be C because greater than symbols point in the same direction of the line >
Leia cuts congruent triangular patches with an area of 15 square centimeters from a rectangular piece of fabric that is 15 centimeters long and 9 centimeters wide. How many of the patches can Leia cut from 30 pieces of the fabric?
Answers
Answer:
$128$ patches can be made.
Step-by-step explanation:
y=|x-3|+|x+2|-|x-5|, if -2 Please do not put links.
Answers
Help ASAP !!!! I’m almost done
Answers
Answer:
1. 30.48cm
2. 5.77yds
3. 540min
4. 1200cm
5. 8.45qt
6. 168hr
7. 4535.92grams
8. 15yd
9. 32.808ft
Step-by-step explanation:
hope this helps :)
A cylinder has a base radius of 8ft and a height of 17ft. What is its volume in cubic ft, to the nearest tenths place?
Answers
Answer:
Step-by-step explanation:
Volume = πr²h = π·8²·17 = 1088π ≅ 3,418.1 ft³
Since this cylinder has a radius of 8 feet, its volume is equal to 3,418.5 cubic feet.
Given the following data:
Radius of cylinder = 8 feet.
Height of cylinder = 17 feet.
How to calculate the volume?Mathematically, the volume of a cylinder is given by this formula:
V = πr²h
Where:
h is the height.r is the radius.Substituting the given parameters into the formula, we have;
V = 3.142 × 8² × 17
V = 3.142 × 64 × 17
V = 3,418.5 cubic ft.
Read more on cylinder here: brainly.com/question/21367171
#SPJ2
Which set of directions correctly describes how to plot the point (8, 4) on the coordinate plane?
A. Start at the origin. Move 8 units to the right, then move 4 units up.
B. Start at the origin. Move 8 units up, then move 4 units to the right.
C. Start at the origin. Move 8 units to the left, then move 4 units up.
D. Start at the origin. Move 8 units up, then move 4 units to the left.
Answers
Answer:
A
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
(x, y)
Left and right affects the x, up and down affects the y.
Since it's a positive 4, it goes up. We can eliminate B and D.
Since it's a positive 8, it goes right. A.
HELP ASAP
The radius of a quarter circle is 1.4 millimeters. What is the quarter circle's area?
Answers
Answer:
A = 1.5386
Step-by-step explanation:
Quarter circle area formula:
A = (πr²)/4
A= (π1.4²)/4
A = (3.14*1.96)/4
A = (6.1544)/4
A = 1.5386
In the figure below, the triangles are similar. Find the ratio of their areas from larger to smaller.
Answers
21:14=x:8
x=21•8/14
x=168/14
x=12
x=base of triangle
A2=h•b/2
21^2=6^2+h^2
441=36+h^2
h^2=441-36
h^2=405
h= √405
h=20.12
A1=12•20.12/2
A1=6•20.12
A1=120.72
Area of smallest triangle is A2
A2=b•h/2
h=?
14^2=4^2+h^2
196=16+h^2
h^2=196-16
h^2=180
h= √180
h=13.42
A2=8•13.42/2
A2=4•13.42
A2=53.68
Ratio 120.72:53.68
Ratio=2.25
The height of a building is 60 m long to the nearest degree what is the angle of elevation of the sun on a building cast a shadow that is 80 m long
Answers
Answer:
80m
Step-by-step explanation:
What is the probability that both ties he chooses are solid white
Answers
Answer:
[tex]\frac{1}{25}[/tex]
Step-by-step explanation:
Total outcome is 10
Favorable outcome is 2
The probability to choose solid white tie is [tex]\frac{1}{5}[/tex]
The probability that both ties he chooses are solid white is
[tex]\frac{1}{5}[/tex] × [tex]\frac{1}{5}[/tex] = [tex]\frac{1}{25}[/tex]
A coin is tossed 4 times. Find the probability that a maximum of one head (exactly one head or no head) turns up.
(A) 0.375 (B) 0.25 (C) 0.50 (D) 0.0625 (E) 0.3125
Answers
I would go with answer D
Every flip is a 50/50 so ever 2 would be .25 then multiply that by 2 for 4 flips and it gives you 0.0625
Anthony buys a guitar for $80. What is the final price he pays after an 8% sales tax?
Answers
Answer:
$86.4
Step-by-step explanation:
You already know that Anthony spent $80 on a guitar and has to pay 8% sales tax so you have to find 8% of $80 and add it to $80 because that is how much he has to pay. 8% of 80=6.4. 6.4+80=86.4 so that is how you get your answer.
Hope this helps
8+8+8=24 as multiplecation sentence
Answers
Answer
Hola la respuesta que buscas es bastante simple pero no lo sé
Step-by-step explanation:
Drag each expression to show if it is equivalent to 25, 52, 2 × 5, or none
Answers
Answer:
rag each expression to show whether it is equivalent to 36x + 9, ... 3.2/5. 20. AthenaSinclair. Ambitious. 467 answers. 151.9K people helped ... Lastly,, we will look at the final expression given which is 4(9x + 2). ... (25 votes).
Step-by-step explanation:
Consider random samples of size 80 drawn from population A with proportion 0.48 and random samples of size 66 drawn from population B with proportion 0.13 . (a) Find the standard error of the distribution of differences in sample proportions, . Round your answer for the standard error to three decimal places. standard error
Answers
Answer:
Standard error = 0.070
Step-by-step explanation:
Formula for the standard error of the distribution of differences in sample proportions is;
σ_(A - B) = √((p_a^(1 - p_a^)/n_a) + (p_b^(1 - p_b^)/n_b))
We are given;
p_a^ = 0.48
n_a = 80
p_b^ = 0.13
n_b = 66
Thus;
σ_(A - B) = √((0.48(1 - 0.48)/80) + (0.14(1 - 0.13)/66))
σ_(A - B) = √0.00496545455
σ_(A - B) = 0.070
Write an equation for a line perpendicular to y=4x+1 and passing through the point (12,-7).
y =
Answers
Answer:
Step-by-step explanation:
y = 4x + 1
Slope of line = 4
Slope of perpendicular to line = -¼
Point-slope equation for line of slope -¼ that passes through (12, -7):
y+7= -¼(x-12)
the area of square of length of side 6cm is
Answers
Answer:
36
Step-by-step explanation:
its a square so all sides are equal so do 6 times 6
Answer: 36 cm squared
Step-by-step explanation:
first, we know squares have all equal sides, which means the square has 6cm for each side
we then multiply the base x height which equals 36
finally, since we are finding area, we put a “squared” symbol, or the word “squared”
The sum of a number y and 3 is 4.5. Pls help!!!
Answers
Answer:
60
Step-by-step explanation:
Answer: 1.5
Step-by-step explanation:
I did 4.5 subtract 3 and got 1.5= y
What is the GCF of 22 and 32?
Answers
Answer:
The GFC of 22 and 32 is 2
Step-by-step explanation:
PLEASE I NEED HELP I GOT A PUPPY AND IM EXHAUSTED HE DOESNT SLEEP AT NIGHT
Answers
Answer:
False
Step-by-step explanation:
Plug 16 into the function as x
16+12=28
4≠28
PLEASE HELP 5 POINTS
Answers
Answer:
V = 9 x 3 x 3 = 81 ft³
81 ft³ is the volume.
How to multiply decimals 627.30 x .58
Answers
Answer:
363.834
Step-by-step explanation:
multiply 627.30 with .58 and move the decimal points.
MATH 20 POINTS HELP PLZ :)
Answers
Answer:
the answer is C.
Step-by-step explanation:
can you please help me with this?
Answers
Answer:
36 cm squared is the anwer
Answer:
96cm²
Step-by-step explanation:
you must find the surface area of each side then add it all up
A standard fair dice is rolled twice.
What is the probability of getting an odd number on the first roll and any number except 1 on the other?
Answers
Answer:
5/12Step-by-step explanation:
Probability = favorable outcomes / total outcomes
P(odd) = 3/6 = 1/2 (there are 3 odd numbers out of 6 on a dice)P(no 1) = 5/6P(odd and no 1) = 1/2*5/6 = 5/12Answer:
5/12
Step-by-step explanation:
Hope this helps
A line has a slope of
–
1
4
and passes through the point (
–
3,4). What is its equation in point-slope form?
Answers
You’re welcome and can I have brainliest?
Jazeel drove less than 25 miles. Which
inequality represents this situation?
Answers
What percent does the percent bar equal?
Answers
Answer:
Where's the photo?
Step-by-step explanation:
I will edit this
1.92 as a percentage of 1.60
Answers
Answer:
120%
Step-by-step explanation:
100% = 1.6, 0.32=20%
As a % multiply by 100
1.2x100= 120%