For what valuea of a and b is the statement true? |a+b| = |a|+|b|

Mathematics

1 answer:

tankabanditka [31]3 years ago

8 0

2 positive integers is the answer to this question because if you test the hypothesis, for example lets take 1 and 2 for instance. |1+2| = |1| + |2| 3=3. Whereas if you tried other hypothesis' they would not work. So, 2 positive integers is the answer.

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A grocery store produce manager is told by a wholesaler that the apples in a large shipment have a mean weight of 6 ounces and a

Andru [333]

Answer:

W= 5.744

Step-by-step explanation:

given that a grocery store produce manager is told by a wholesaler that the apples in a large shipment have a mean weight of 6 ounces and a standard deviation of 1.4 ounces

Sample size n= 49

Margin of error = 0.10 (10% risk )

Let us assume X no of apples having mean weight of 6 oz is N(6,1.4)

Then sample mean will be normal with (6, 1.4/7) = (6,0.2)

(Because sample mean follows normal with std error as std dev /sqrt of sample size)

Now required probability <0.10

i.e. $P(\bar X$