Please provide explanations for the answers below. Thank you! 81. In a P-chart t

Question

Please provide explanations for the answers below. Thank you!

81. In a P-chart the size of the sampel can vary.

True or False

82. When N>25, there is no need for a shortcut formula to determine the upper and lower control limits for an X-Bar chart.

True or False

83. When N<12, the range is used as an estimate for the standard deviation when constructing an X-bar chart.

True or False

84. An alpha or type I error occurs when a sample mean exceeds the LCL or LCL but the process is still in control

True or False

85. When a six sigma standard is used to design a process, the number of defects per million outcomes will be___

a.) 6219

b.) 320

c.) 3.4

d.) 6

Explanation / Answer

81. The binomial distribution is the basis for the p-chart.

And one of the condition of binomial distribution is that n is constant

Hence In a P-chart the size of the sampel can't vary, hence answer is False

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