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VLD [36.1K]
3 years ago
13

Jane cuts a foam block along the red line. When she looks at the newly

Mathematics
1 answer:
alexira [117]3 years ago
4 0
I believe the answer is A
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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
Jlenok [28]

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

6 0
3 years ago
1. MATHEMATICS The sum of ages of Bola, Dada and Ayo is 32 years. After sharing a sum of money in ratio of their ages, if Bola g
solniwko [45]

Answer:

Bola is 8 years old.

Step-by-step explanation:

Let Bola's age be x

Dada's age be y

Ayo's age be z

If the sum of ages of Bola, Dada and Ayo is 32 years, then;

x + y + z = 32

If they share a sum of money in ratio of their ages, then the ratio of their ages will be x : y : z

Also if Bola gets N400, Dada get-N400 and Ayo get N800, then the total amount of money shared will be expressed as:

T = 400 + 400 + 800

T = N1600

Next is to get the age of Bola

\frac{age \ of \ bola}{32}* Total \ amount \ shared = Bola's \ Share

Substitute the required variables and values into the formula;

\frac{x}{32}*1600= 400\\50x=400\\x=\frac{400}{50}\\x=8

This shows that Bola is 8 years old

3 0
2 years ago
In the ordered pair -3/2,-7 is called the
trapecia [35]

Answer:

Coordinates.

3 0
2 years ago
The carpet for the office you completed cost $576. If you're using the same carpet in the new client's bedroom, how much will it
Temka [501]

Answer:

D. 225

Step-by-step explanation:

4 0
2 years ago
You have $900 in a checking account. You pay a $60 cell phone bill each month using this account.
S_A_V [24]

Answer:

$660

Step-by-step explanation:

You multiply 60 by 4 and get 240

Subtract 240 from 900

7 0
2 years ago
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