SocialTwist Tell-a-Friend

Ask a Question? Get an Answer!


Question: Find the highest control limit for a normally distributed curve with a mean of 20 and a standard deviation of 3.


A ) 23
B ) 29
C ) 11
D ) 26

Steps to derive

1 Mean μ = 20 and standard deviation σ = 3.

2 The control limits for 1 standard deviation are
μ - σ and μ + σ. That is 17 and 23.

3 The control limits for 2 standard deviations are
μ - 2σ and μ + 2σ. That is 14 and 26.

4 The control limits for 3 standard deviations are
μ - 3σ and μ + 3σ. That is 11 and 29.

5 So, the highest control limit is 29.



Hence the right answer is Option B

Click Here To Go Back


Few Other Questions -

  • Which pair of functions are not inverses?..
  • Which pair of functions are inverses?..
  • Which pair of functions are not inverses?..
  • Which is the graph of a function and its inverse?..
  • Find (f + g)(2), if f(x) = 2x3 + 1 and g(x) = (x + 1)2...
  • Identify the graph of the function y = x - 3...
  • Find the value of (f - g)(1) when f(x) = 2x+5x+1 and g(x) = x - 1...
  • Identify the graph of the function y = 5x...
  • Identify the graph of the function y = 4 + x...
  • Find (fg)(- 1) when f(x) = x1+3x and g(x) = 1 - 2x...
  • Identify the graph of the function y = x+1 + 7...
  • Evaluate the function (fg)(- 2) when f(x) = (x + 1) and g(x) = x2...
  • Identify the equation of the graph shown...
  • Identify the equation of the graph shown...
  • Find (f + g)(1), if f(x) = - 2x and g(x) = (x - 1)...
  • Identify the graph of the function y = 5x...
  • Identify the graph of the function y = - 4x+2...
  • Identify the graph of the function y = - 2(x-4)2...
  • Identify the equation of the graph shown...
  • Identify the equation of the graph shown...
  • Identify the equation of the graph shown...
  • Identify the equation of the graph shown...
  • Identify the equation of the graph shown...
  • Identify the equation of the graph shown...
  • Identify the equation of the graph shown...
  • Identify the graph of the function y = - 7ln (4x)...
  • Identify the graph of the function y = - 5ln x...
  • Identify the graph of the function y = - 1x...
  • Identify the graph of the function y = 4x+2...
  • Identify the graph of the function y = 2(x-4)2...
  • Identify the equation of the graph shown...
  • Identify the equation of the graph shown...
  • Identify the graph of the function y = - x - 3...
  • Identify the graph of the function y = - x...
  • Identify the graph of the function y = 4 - x...
  • Identify the graph of the function y = - x-1 + 7...
  • Identify the equation of the graph shown...
  • Find the value of b that makes x2 + bx + 36 a perfect square...
  • Find the value of a that makes ax2 - 20x + 25 a perfect square...
  • What is the effect of the constant factor on the slope of the functions y1 = x2 - 2x + 3 a..
  • What is the effect of the constant factor on the slope of the functions y1 = x2 + 4x + 8 a..
  • What is the effect of the constant factor on the slope of the functions y1 = - x2 + 8x and..
  • What is the effect of the constant factor on the slope of the functions y1 = 2x2 - 1 and y..
  • What is the effect of the constant factor on the slope of the functions y1 = 3x2 + 6x + 9 ..
  • Which measure of central tendency is most appropriate for a data that describes the hours ..
  • Which measure of central tendency is most appropriate for a data that describes the daily ..
  • If f(x) = 2x2 + 3 and g(x) = 7x + 1, find (f + g)(x)...
  • Identify the pythagorean triples from the following...
  • Which of the following measures make a right triangle?..
  • Which of the following is not a pythagorean triples?..
  • Which of the following is a pythagorean triples?..
  • Which of the following is not a pythagorean triples?..
  • Which of the follwoing measures do not make a right triangle?..
  • Which of the following measures make a right triangle?..
  • Which quadratic function best represents the graph?..
  • Identify the quadratic function that best represents the graph shown...
  • Which of following is the translation of y = 12x that has moved 3 units left and 4 units d..
  • Which of the following is the translation of y = - 6x, when it is moved 5 units left and 8..
  • Which of the following is the translation of y = 14x, when it is moved 6 units up and 9 u..
  • Which of following is the translation of y = - 31x, when it is moved 1 unit right and 1 un..
  • Which of the following is true for the graph of y = 15x + 17?..
  • Which of the following is true for the function f(x) = x5 + x4 + x + 1 ?I. f(x) is an even..
  • Which of the following functions is even?..
  • Choose the graph of an odd function...
  • If f (l) = sinh (2l), then which of the following is true?..
  • If f (k) = cosh (3k), then which of the following is true?..
  • What translations on y = x2 is used to get the graph of the equation y = (x - 4)2 + 6?..
  • Choose the translations on the graph of y = x2 to obtain y = (5 - x)2...
  • Which of the following would be the transformed equation of the graph of y = x, when it is..
  • Choose the transformation on the graph of f(x) = x + 6 to obtain the graph of ..
  • Find the domain of the function, f(x) = log2 (8 - x)...
  • Find the domain of the logarithmic function, f(x) = log2 (x + 11)2...
  • Write the domain of the function f (x) = 30 log (x - 28)...
  • Write the range of the function f (x) = 26 log (17 - 26x)...
  • Which of the following is true for the given function, f (x) = 28 - ln (28x - 84)?..
  • What is the effect of the constant factor on the slope of the functions y1 = 6x2 +&nb..
  • What is the effect of the constant factor on the slope of the functions y1 = 2x2 - 11 and ..
  • What is the effect of the constant factor on the slope of the functions y1 = 4x2 + 10 and ..
  • Identify the equation that transforms the parabola A, y = 5x2 + 2 to the parabola B...
  • The equation of the parabola A is y = - x2. Find the equation of the parabola B that is ob..
  • What is the effect of the constant factor on the slope of the functions y1 = 3x2 - 2x + 11..
  • What is the effect of the constant factor on the slope of the functions y1 = 5x2 - 2x + 11..
  • Which statement illustrates the associative property of multiplication?..
  • Use the properties to find the sum: (2x + 3) + 4x..
  • Simplify the expression: 5a + 7b + 8a - 21b..
  • Identify the square root that the point represents on the number line...
  • On which of the number lines are the numbers 3.2, 3.4, and 3.6 plotted correctly?..
  • On which of the number lines is the fraction 83 plotted correctly?..
  • What is the solid that can be formed using the following polygons?..
  • Simplify: - 3(4x2 - 3x + 2)..
  • Use the distributive property to rewrite 4(x + 7) without parentheses...
  • Use distributive property to simplify the expression 4(12 - n)...
  • Use distributive property to simplify the expression 13(6n + 15)...
  • Simplify:4(3 + 12x)..
  • Simplify: 5(2x - y)..
  • Simplify: 15(6 - 23x)..
  • Simplify: 3(2x2 - 5x + 5)..
  • Use distributive property to simplify the expression 13(- 15x2 + 21y + 6z)...
  • Simplify: 3x + 4y - 5x..
  • Simplify: 4n2 - 5mn + 2n2..
    		•