The weight of a 5th grader is normally distributed with a mean of 65 pounds and a variance of 86 pounds*2. Let weight, in pounds, be represented by random variable X.Question 3P(61xx2)-0.0990. Find x2. (Remember the label.)poundsThe Economic Policy Institute reports that the average entry-level wage for male college graduates is $20.24 per hour and for female college graduates is $19.72 per hour. Thestandard deviation for male graduates is $3.94 and for female graduates is $2.67. Assume wages are normally distributed. (See exercise 23 on page 326 of your textbook for asimilar problem.)Question 4If 54 male graduates are chosen, find the probability the sample average entry-level wage is at least $19.23.

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Asked Feb 26, 2019
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The weight of a 5th grader is normally distributed with a mean of 65 pounds and a variance of 86 pounds*2. Let weight, in pounds, be represented by random variable X.
Question 3
P(61xx2)-0.0990. Find x2. (Remember the label.)
pounds
The Economic Policy Institute reports that the average entry-level wage for male college graduates is $20.24 per hour and for female college graduates is $19.72 per hour. The
standard deviation for male graduates is $3.94 and for female graduates is $2.67. Assume wages are normally distributed. (See exercise 23 on page 326 of your textbook for a
similar problem.)
Question 4
If 54 male graduates are chosen, find the probability the sample average entry-level wage is at least $19.23.
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The weight of a 5th grader is normally distributed with a mean of 65 pounds and a variance of 86 pounds*2. Let weight, in pounds, be represented by random variable X. Question 3 P(61xx2)-0.0990. Find x2. (Remember the label.) pounds The Economic Policy Institute reports that the average entry-level wage for male college graduates is $20.24 per hour and for female college graduates is $19.72 per hour. The standard deviation for male graduates is $3.94 and for female graduates is $2.67. Assume wages are normally distributed. (See exercise 23 on page 326 of your textbook for a similar problem.) Question 4 If 54 male graduates are chosen, find the probability the sample average entry-level wage is at least $19.23.

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Expert Answer

Step 1

Question 3:

Introduction:

Let X be the weight of a randomly selected 5th grader. The mean weight is μ = 65 pounds and variance is σ2 = 86 pounds2. The weights are normally distributed.

Thus, the standard deviation is: σ = √86 pounds = 9.27 pounds.

Step 2

Calculation for Question 3:

The probability is:

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Step 3

Question 4:

Introduction:

Let Y be the entry-level wage of a randomly selected male college graduate. The mean wage of a male graduate is μ = $20.24 and standard deviation is σ = $3.94. The wages are normally dis...

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