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Keith_Richards [23]
3 years ago
14

A courier service advertises that its average delivery time is less than six hours for local deliveries. A random sample of size

10 of the amount of time this courier takes to deliver packages to an address across town was taken. The true standard deviation is not known. A hypothesis test will be run to determine if there is sufficient evidence to support the courier's advertised claim. What case is best
Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
3 0

Answer, Step-by-step explanation:

According to the exercise, we evaluate the delivery time of a courier company and we will hypothesize the best case with a sample size of 10, which is:

Small sample T test for single mean

The hypothesis that we will develop will be the following:

null hypothesis = mu> = 6

hypothesis alternativa: <6

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Montano1993 [528]
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Let's reduce that to 3/4 size:  Mult. 864 cm^2 by (3/4).  Result:  648 cm^2.

We need to find new L and new W such that W/L = 2/3 and WL = 648 cm^2.

From the first equation we get W = 2L/3.  Thus, WL = 648 cm^2 = (2L/3)(L).

Solve this last equation for L^2, and then for L:

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3 years ago
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melomori [17]

We will have the following:

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1 year ago
Wich is greater 500 seconds or 8 minutes
ohaa [14]
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6 0
3 years ago
Read 2 more answers
Factor the expression.<br> x squared-25
grin007 [14]
X2<span> - 25 = x</span>2<span> - 5</span>2<span> = (x - 5)(x + 5)

</span>
4 0
3 years ago
Give brainlest on time limit pls help
inysia [295]

Answer:

336 sq un

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The area of a rhombus is pq/2 where p and q are the diagonals.

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so the formula would be:

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8 0
3 years ago
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