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Masja [62]
2 years ago
13

Caleb cut a rope into 4 pieces. The lengths of the pieces of rope are 5 2 8 inches, 7 7 8 inches, 4 1 8 inches, and 3 3 8 inches

. Which choice is the closest estimate of the length of the original rope? A. 1 foot 7 inches
Mathematics
1 answer:
vfiekz [6]2 years ago
3 0

Answer:

.

Step-by-step explanation:

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To compare two products such as colas, a random sample is selected to taste two types of colas (A and B). Each selected subject
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Answer: The sample size would be needed = 385

Step-by-step explanation:

Let p be the prior population proportion.

Margin of error = E

When not estimate of p is given , the formula to calculate the minimum sample size <em>n</em> = 0.25(\dfrac{z^*}{E})^2 , where z* = critical value for given confidence interval.

Here z* for 95% confidence level is 1.96.

E=5%=0.05

Then n=0.25(\dfrac{1.96}{0.05})^2\approx385

Hence, the sample size would be needed = 385

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