Come from the normal population
The ages of 10 students are listed in years :{ 17,22,19,24,21,23,29,18,22,28 }
(a) Determine the mean, median, mode, sample variance, and range.
(b) Do you think that this sample may have come from the normal population? Why or why not?
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The monthly utility bills are normally distributed with mean value of $150 and standard deviation of $20.
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Determine the mean, median, mode, sample variance, and range. Do you think that this sample may have come from the normal population? Why or why not?
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At a drive through window of the bank it's found that 10 customers get served every 15 minutes. The bank's manage is interested in finding a way to raise the number of customers which can be served. He thought that knowing the probability of servi
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A research shows which employee salaries at company XYX, in thousands of dollars, are given by the equation y-hat= 48.5 + 2.2 a + 1.5 b where ‘a' is the years of experience, and ‘b' is the education level in years. In thousands of doll
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