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zhenek [66]
3 years ago
11

Becky has a board that is 2 and 3/4 feet long. She needs to cut the board into 11 pieces of equal length. How long should each p

iece be?
Mathematics
1 answer:
zzz [600]3 years ago
4 0

Answer:

1/4 feet long should each pieces be.

Step-by-step explanation:

Unit rate defined as the rates are expressed as a quantity of 1 such as 3 miles per second or 4 km per hour

As per the statement: Becky has a board that is 2 and 3/4 feet long.

⇒ Length of a board = 2\frac{3}{4} =\frac{11}{4} feet

Also, she need to cut the board into 11 pieces.

by unit rate definition:

\text{Unit rate per pieces} = \frac{\frac{11}{4} }{11}

or

\text{Unit rate per pieces} = \frac{11}{4} \times \frac{1}{11} = \frac{1}{4}

Therefore, 1/4 feet long should each pieces be.




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Answer:

Since the computed value of t=  0.833 does not fall in the critical region we therefore do not reject H0 and may conclude that population mean is greater than 160. Or the sample comes from population with mean of 165.

Step-by-step explanation:

  1. State the null and alternative hypothesis as

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2.  The test statistic to use is

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3. The critical region is t< t (0.025(35)= 2.0306

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Now

6. The p-value is 0 .410326 for  t= 0.8333 with 35 degrees of freedom.

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