Answer:
Step-by-step explanation:
From the given information:
Let assume:
[tex]\mu_1 =[/tex] population mean for catalyst 1
[tex]\mu_2 =[/tex] population mean for catalyst 2
Then:
Null hypothesis: [tex]\mu_1 \ge \mu_2[/tex]
Alternative hypothesis: [tex]\mu_1 <\mu_2[/tex]
[tex]\alpha= 0.01[/tex]
By using MINITAB software to compute the 2 sample t-test, we have:
Two-Sample T_Test and CI
Sample N Mean StDev SE Mean
1 12 94.00 3.00 0.87
2 15 90.00 2.00 0.52
Difference = [tex]\mu_1(1)-\mu_2(2)[/tex]
Estimate of difference: -6.00
99% upper bound for difference: -3.603
T-test of difference: 0 (vs <): T-value = -6.22
P.value = 0.000
DF = 25
Both use Pooled StDev = 2.4900
From above result
the test statistics = -6.00
p-value = 0.00
Decision Rule: To reject [tex]H_o\ \ if \ \ p \le \alpha[/tex]
Conclusion: Provided that p-value is < ∝, we reject [tex]H_o[/tex]. Hence, there is sufficient evidence to support the given claim.
b) From the MINITAB;
The 99% C.I on the difference in the mean yields that can be applied to test the claim in part (a) is:
[tex]\mathbf{\mu_1 -\mu_2 \le -3.60}[/tex]
hi can anyone help me with this please
Answer:35in.
Step-by-step explanation:
I reccomend splitting it into sections when given problems like this.
The smaller two rectangles would be 5in * 2in which is 10in then just add them together.
For the bigger one, you'd do 5-2 in order to get the missing inches which will be 3+2 once added 5in*3in is 15in.
Finally, add 15+10+10 (15=The middle rectangle and 10=the sides)
Answer:
Break it up into pieces. The answer is 35in^2
Step-by-step explanation:
I took the first rectangle you see which is 5in by 2. Multiply that and you get 10
I then took the second one and is the 5 in by 3in. Multiply those and you get 15
The last one is the exact same as the first one
Add the areas all together and you get the area of the whole shape
Hope that helps
What is the value of the smaller zero of the function f(x) = 2x2 - 8x - 24?
Connie bought 172 tulip bulbs. She wants to plant an equal number of bulbs in each of 4 flower beds. How many bulbs should Connie plant in each flower bed?
(wrong answer will get you reported)
Answer:
43
Step-by-step explanation:
172/4= 43
A simple random sample of size 51 has sample mean of 70.72. The population distribution is approximately normal, with population standard deviation of 16.25. Determine the correct method of finding a 95% confidence interval for the unknown population mean and compute it. z-method: (66.26, 75.18) Cannot compute: the population size is too small. t-method: (66.15, 75.29) z-method: (66.15, 75.29)
Answer:
z-method: (66.26, 75.18)
Step-by-step explanation:
We have the standard deviation for the population, which means that we use the z-distribution to solve this question.
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.
Now, find the margin of error M as such
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
[tex]M = 1.96\frac{16.25}{\sqrt{51}} = 4.46[/tex]
The lower end of the interval is the sample mean subtracted by M. So it is 70.72 - 4.46 = 66.26
The upper end of the interval is the sample mean added to M. So it is 70.72 + 4.46 = 75.18
The correct answer is z-method: (66.26, 75.18)
Help please will mark brainliest!!!
Answer:
176.71
Step-by-step explanation:
you can just search up "area of circle calculator and plug in the radius
which of these describes abc?
Answer:
A
Step-by-step explanation:
I remember it by:
acute: a cute little angle that is smaller than 90 degrees
A restaurantis planning to make changes to its menu. In order to decide which potential menu items are most popular with the city's population, the owners will conduct a survey. Which survey methods would produce a representative sample of the city's population
Answer:
Simple random sampling survey method
Step-by-step explanation:
A simple random sampling is an unbiased survey technique Hence it will represent all the parts of the city's population.
In statistics, a simple random sample is a subset of individuals (a sample) chosen from a larger set (a population). Each individual is chosen randomly and entirely by chance, such that each individual has the same probability of being chosen at any stage during the sampling process
Answer:
hope i helped :)
Step-by-step explanation:
some survey methods that could produce a representative sample of the city's population could be as follows:
o panel sampling
o online surveys
o mail-in surveys
PLEASE HELP, anything appreciated
Answer:
1:81
Step-by-step explanation:
figure b is 81 times bigger
Tell whether the following binomial is a factor of the polynomial
binomial- (x+8)
Polynomial- x^5-8x^4+8x-64
Please help :)
Answer:
Given polynomial
x⁵-8x⁴+8x-64= x⁴(x-8)+8(x-8)= (x-8)(x⁴+8)
after factorization of the given polynomial we didn't get any factor (x+8) , hence the following bionomial is not the factor of the polynomial.
JOE CAN READ 27 PAGES IN 3 HOURS. HOW MANY CAN HE READ IN 9 HOURS?
Hi, I need the are to this question, I just need to show my work btw
PLEASE HELP FAST ILL MARK AS BRAINLIEST!!!!! :((
Alejandra took a taxi home from the airport. The taxi fare was $2 per mile,
and she gave the driver a tip of $5. She paid a total of $49. How far is it from
the airport to Alejandra's home?
Answer:
22 miles
.......ur welcome.......
49-5=44
44÷2=22
Answer:
The answer is 22miles from the airport to Alejandra's home.
Step-by-step explanation:
2 X 22 = $44
PLUS $5 dollar tip so that would be:
$44 + $5 = $49
A line has a slope of 6 and a y-intercept of 9. What is its equation in slope-intercept
form?
Answer:
y=6x+9
Step-by-step explanation:
y=mx+b where m=slope and b=y-intercept
Help please!!!! I’ll appreciate it so much!
Answer:
13. x = 4
14. x = -16
15. x = 11
Step-by-step explanation:
Find the degree of the polynomial – 3x + x² +3.
Answer:
Step-by-step explanation:
Degree means highest exponent. got it?
Are these triangles similar? If yes, write a similarity statement.
Find perimeter of rectangle when length = 4.6m and breadth = 360cm
Answer:
16.4 m²
Step-by-step explanation:
length = 4.6 m
breadth = 360 cm = 360 ÷ 100 = 3.6 m
Perimeter = 2*(l + b)
= 2 * ( 4.6 + 3.6)
= 2 * 8.2
= 16.4 m²
Solve this and put it an inequality.
|x - 7|=x-7
Answer:
x>=7
Step-by-step explanation:
Since the equation on the right is equal to the equation on the left that means that x has to be greater or equal to 7 to make the statement true.
(-4x + 5) - (6x + 7) = 0
What is the solution to the equation?
O x = 6
O x= 1
O x = -0.2
O = -1.2
Find the probability
Answer:
33.3333%
Step-by-step explanation:
each side would be 50% and if one side is split between three it would equal if it was 16.6667 each
since tehre are two red sides multiply 16.6667 by 2 and u get 33.3333%
Find the sum or difference. (5a – 3b2 – a) + (b – 5 + 8a2)
Answer:
C
Step-by-step explanation:
5a - 3b^2 - a + b - 5 + 8a^2
8a^2 - 3b^2 + 4a + b - 5
Which is bigger 3/12 or -4/5
Step-by-step explanation:
3/12 = 0.25
-4/5 = - 0.8
so since the 2nd one is negative.
so 3/12 is the bigger
Ez hw for my lil sis
Answer:
an apple is a cirlce and phone is a rectangle
Step-by-step explanation:
Answer:
Triangle and Circle
Banana and apple
Pizza and Pineapple
Bread and Corn
jasonran 4 miles in 30 minutes which of the following is an equivalent rate of running
Answer:
10 miles in 75 minutes
Step-by-step explanation:
Make a box-and-whisker plot for the set of data.
21, 27, 27, 25, 21, 13, 18, 25
If I invest $1,000 at an 8.5% interest rate, how much money will I earn over 6 years?
6,000$
if the answer is wrong i am sorry :(
Answer:
$510
Step-by-step explanation:
Find the value of x. Round to the
nearest tenth.
х
33
6
Answer:
cos(33) = 6/X
cos(33)*6= X
X= 5.03202340767254
rounded to the nearest tenth it is 5
therefore X= 5
The value of x in the given digram using trigonometry to the nearest tenth is 7.15.
What is the value of x ?The given image is a right triangle. A right triangle is a triangle that has three sides with one of the angles measuring 90 degrees.
Given an angle and the length of the adjacent side, we are to determine the value of the hypotenuse using cos.
Cos = adjacent / hypotenuse
cos 33 = 6 /h
h = 6 / cos 33
h = 6 / 0.83867
h = 7.15
To learn more about right angled triangle, please check: https://brainly.com/question/20694080
A point is chosen at random on AK.
What is the probability that the point
will be on FI? Don't forget to reduce.
A B с E F G H I J KI
HHHHHHHHHHHHHH
-10 -8 -6 -4 -2 0 2 4 6 8 10
Answer: 3/10
Step-by-step explanation: 6/20 reduced = 3/10 for acellus
Probability -
Probability is the branch of mathematics that studies the possible outcomes of given events together with the outcomes' relative likelihoods and distributions.For example, the probability of flipping a coin and it being heads is ½, because there is 1 way of getting a head and the total number of possible outcomes is 2 (a head or tail).Given,
A B с E F G H I J KI
HHHHHHHHHHHHHH
-10 -8 -6 -4 -2 0 2 4 6 8 10
So,
The probability that the point will be on FI
A B KI C D E E G H J
HHHHHHHHH
-6 -4 -2 0 2 4 6 8 -10° -8 10
Enter Done q W er t y u i O p a a s d f f gh j k Z X C V b n m X 123 space return .
Learn more about probability brainly.com/question/11034287
#SPJ2
Solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations.
x + y - z = -2
2x - y + 3z = 9
x - 4y - 2z = 1
Answer:
8
Step-by-step explanation:
k