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solniwko [45]
3 years ago
11

Seams Personal advertises on its website that 95% of customer orders are received within four working days. They performed an au

dit from a random sample of 500 of the 6,000 orders received that month and it shows 470 orders were received on time.
Part A: Can we use a normal approximation? Explain. (5 points)

Part B: If Seams Personal customers really receive 95% of their orders within four working days, what is the probability that the proportion in the random sample of 500 orders is the same as the proportion found in the audit sample or less? (5 points)
Mathematics
1 answer:
Anna71 [15]3 years ago
4 0

Answer:

500 orders

Step-by-step explanation:

500

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Find the measure of the missing angle
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Answer:

z = 69°

Step-by-step explanation:

The sum of all interior angles in a quadrilateral is 360°, and a right angle is worth 90°. We're given the values of the interior angles as 90, 122, 79, and z degrees.

  • We can solve this question algebraically with the equation 90 + 122 + 79 + z = 360

Step 1: Combine like terms.

  • (90+122+79)+z=360
  • z + 291 = 360

Step 2: Subtract 291 from both sides.

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Step 3: Check if solution is correct.

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Therefore, z = 69°.

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6 0
2 years ago
Write the equation of the line that passes though the points (0,-2)(3,4)
34kurt

Answer:

y=2x-2

Step-by-step explanation:

find the slope (m)

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8 0
3 years ago
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3 0
3 years ago
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The weight of male american between the ages 18 to 25 is normally distributed, with mean of 162.7 lb and a standard deviation of
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Answer:

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Step-by-step explanation:

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We will use z-score formula to solve our given problem.

z=\frac{x-\mu}{\sigma}, where,

z=\text{ z-score},

x=\text{ Random sample-score},

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\sigma=\text{ Standard deviation}.

Upon substituting our given values in z-score formula we will get,

2=\frac{x-162.7}{28}

Now let us solve for x.

Upon multiplying both sides of our equation by 28 we will get,

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Let us add 162.7 to both sides of our equation.

56+162.7=x-162.7+162.7

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