1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alborosie
3 years ago
11

A food scientist takes a random sample of 25 cereals in order to test the claim that the mean fiber content is less than 2.5 gra

ms. The graphs of the data and two types of hypothesis test output are provided below. Determine which output should be used and state the conclusion of this test at the 5% significance level.
Mathematics
1 answer:
Jlenok [28]3 years ago
6 0

Answer:

Choice A: there is insufficient evidence to conclude that the mean for the fiber content is less than 2.5 gms.

Step-by-step explanation:

From the graphs given the more appropriate is one sample t- test

One sample t- test is used and the results are

Hypothesis Test                       Fiber

Sample Mean                          2.62

Sample St. Dev                       3.492

Degrees of Freedom              24

t- test statistic                         0.1718

p- value                                    0.5675

the critical region for this test at ∝= 0.05 is t < -1.711

There is not enough evidence to reject the null hypothesis.

Since the calculated t=   0.1718 does not fall in the critical region the null hypothesis is accepted that the mean fiber content is not  less than 2.5 grams.T

You might be interested in
Jerry paid $54.40 for 4 Circus tickets. Each ticket cost the same amount. What was the cost of each Circus ticket in dollars and
AnnyKZ [126]

Answer : 13.6

Each ticket

4 0
2 years ago
Read 2 more answers
I AM VERY DESPERATE NOW!!! I HAVE ASKED THIS SAME QUESTION 3 TIMES AND NOBODY HAS BEEN ABLE TO ANSWER IT. PLEASE HELP, SOMEONE!!
Alexandra [31]

Answer:

Interest rate is 5.25% a year.

Step-by-step explanation:

r = (1/54)((22252.5/18000) - 1) = 0.004375

r = 0.004375

Convert decimal to percentage

R = 0.004375 * 100 = 0.4375%/month

Calculate annual rate

0.4375%/month × 12 months/year = 5.25% per year.

8 0
3 years ago
Read 2 more answers
The ratio of the longer side of a rectangle to its shorter side is 4 to 3. If the shorter side of the rectangle is 21ft, what is
Eduardwww [97]

Answer:

28 ft


Step-by-step explanation:

Let longer side of rectangle be L and the shorter side be  S, thus we can write the ratio:

\frac{L}{S}=\frac{4}{3}


<em>Now putting 21 into S, we solve for L:</em>

\frac{L}{21}=\frac{4}{3}\\3L=4*21\\3L=84\\L=\frac{84}{3}=28


Hence, length of longer side is 28 ft.

5 0
3 years ago
Read 2 more answers
Which angle measures 180
artcher [175]
The answer is D.
The others equal 90
7 0
3 years ago
Read 2 more answers
8/x-5 - 9/x-4 = 5/x^2-9x+20
adelina 88 [10]
If you're using the app, try seeing this answer through your browser:  brainly.com/question/2752942

_______________


Solve the equation:

\mathsf{\dfrac{8}{x-5}-\dfrac{9}{x-4}=\dfrac{5}{x^2-9x+20}\qquad\qquad(x\ne 5~and~x\ne 4)}


Reduce the fractions at the left side so that they have the same denominator:

\mathsf{\dfrac{8(x-4)}{(x-5)(x-4)}-\dfrac{9(x-5)}{(x-4)(x-5)}=\dfrac{5}{x^2-9x+20}}\\\\\\&#10;\mathsf{\dfrac{8x-32}{x^2-4x-5x+20}-\dfrac{9x-45}{x^2-4x-5x+20}=\dfrac{5}{x^2-9x+20}}\\\\\\&#10;\mathsf{\dfrac{8x-32}{x^2-9x+20}-\dfrac{9x-45}{x^2-9x+20}=\dfrac{5}{x^2-9x+20}}\\\\\\&#10;\mathsf{\dfrac{8x-32-(9x-45)}{x^2-9x+20}=\dfrac{5}{x^2-9x+20}}


Numerators must be equal:

\mathsf{8x-32-(9x-45)=5}\\\\&#10;\mathsf{8x-32-9x+45=5}\\\\&#10;\mathsf{8x-9x=5+32-45}\\\\&#10;\mathsf{-x=-8}\\\\&#10;\mathsf{x=8}\quad\longleftarrow\quad\textsf{this is the solution.}


I hope this helps. =)


Tags:  <em>rational equation fraction solution algebra</em>

7 0
3 years ago
Other questions:
  • alex buys 12 DVDs.each DVD cost $15. if alex receives a $4 discount on each DVD, what is the total amount of money Alex spends?
    15·1 answer
  • The 7 digit numbers 74A52B1 and 326AB4C are each multiples of 3. Which of the following could be the value of C?
    7·1 answer
  • The perimeter of the triangle is 4x+3y. Find the measure of the missing side.
    12·1 answer
  • Match each function with the corresponding function formula when h(x) = 2 – 2x and g(x) = –2 x + 2.
    9·1 answer
  • Select the graph of the equation below. y=1/2x^2+2x-6
    11·2 answers
  • the price of a stock went down $4.25 on monday and then down $2.75 on tuesday. what was the overall change in price for the two
    6·1 answer
  • Simplify -2.8f+0.9f-12-4
    13·2 answers
  • the probabilities of having 0,1,2,3, or 4 people waiting in line at a grocery store are shown in the probability distribution be
    9·1 answer
  • 17. The mapping shows a relationship between x and y. Which statement is 5 points
    12·2 answers
  • 5. The mean exam score for the first group of twenty examinees applying for a security job is 35.3 with a standard deviation of
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!