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3 years ago

7

Henry is making a corn grits recipe that calls for 1/4 cup of corn grits for every /12 cup of water. How much water will he need

if he uses 1/1/2 cups of corn grits?

1 answer:

riadik2000 [5.3K]3 years ago

4 0

Corn Grits : Water
1/4 : 1/2
1/4 x 4 : 1/2 x 4
1 : 2
3/2 : 2 x 3/2
1 1/2 : 3

So he will need 3 cup of water if he uses 1 1/2 cup of corns grits.

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3 years ago

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3 years ago

You are contacted by a phone-in technical support business that is interested in some information about the amount of time their

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The average hold time is 10.47 minutes.

Step-by-step explanation:

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The population mean of the random variable <em>X</em> is, <em>μ</em> = 11 minutes.

The population standard deviation of the random variable <em>X</em> is, <em>σ </em>= 1.16 minutes.

A random sample size, <em>n</em> = 62 callers are selected.

According to the Central limit theorem if large samples (<em>n</em> > 30) are selected from an unknown population with mean <em>μ</em> and standard deviation <em>σ</em> then the sampling distribution of sample mean ( $\bar x$ ) follows a Normal distribution.

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The standard deviation of the sampling distribution of sample mean is:

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Compute the value of <em>a</em> as follows:

$P(\bar X>a)=0.79\\P(Z>z)=0.79\\1-P(Z$

The value of <em>z</em> for the above probability is, <em>z</em> = -0.806.

The value of <em>a</em> is:

$z=\frac{a-\mu_{\bar x}}{\sigma_{\bar x}}\\-0.806=\frac{a-11}{0.147}\\a=11-(0.86\times 0.147)\\a=10.87$

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3 years ago