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Mariana [72]
3 years ago
15

The weight of adults Male beagles are normally distributed, with a mean of 25 pounds and a standard deviation of 4 pounds.

Mathematics
1 answer:
a_sh-v [17]3 years ago
6 0

Answer:

There is a 95.6% chance that the weight will fall within this range.

Step-by-step explanation:

This is because the extremes that are given are roughly two standard deviations from the mean. To be outside of that, there is only 2.2% likelihood to be higher and another 2.2% to be lower. When we subtract these two from 100%, we get our probability.

100% - 2.2% - 2.2% = 95.6%

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"A laboratory tested 73 chicken eggs and found that the mean amount of cholesterol was 230 milligrams with LaTeX: \sigmaσ = 17.4
Scrat [10]

Answer:

The 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is between 226.01 and 233.99 milligrams.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.96*\frac{17.4}{\sqrt{73}} = 3.99

The lower end of the interval is the sample mean subtracted by M. So it is 230 - 3.99 = 226.01

The upper end of the interval is the sample mean added to M. So it is 230 + 3.99 = 233.99.

The 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is between 226.01 and 233.99 milligrams.

4 0
3 years ago
Can someone please check to see if this is correct?..thanks <br> explanation would be appreciated
forsale [732]

Answer:

yes correct

Step-by-step explanation:

given

5x ≥ 3x + 4 ( subtract 3x from both sides )

2x ≥ 4 ( divide both sides by 2 )

x ≥ 2 ← is the solution to the inequality

The only value greater than 2 is 3

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2 years ago
Where is the hundred thousand place
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The 6th to the left

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2 years ago
How to solve r-9≤-25​
nataly862011 [7]

Answer:

Step-by-step explanation:

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The checkbook balance of Sunfresh, Inc. is $6,917.63. The bank statement shows a balance of $8,737.35. The bank statement showed
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The answer is d $10,748.68
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