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Ho: p <= .50
n = 200 α = .05 1 trial p = .57
Calculate the Standard Error Calculate Table Zt. Calculate Computed Zc. Accept or Reject Ho Calculate P value Calculate critical value?
The lifetime of a light bulb is an Exponential RV with a mean of 800 hours. Let L represent the time (in hours) that one randomly selected light bulb will burn. What is the possibility the light bulb burns for more than 1000 hours.
Fix-It Copiers advertises mean time of 100 minutes for office calls with standard deviation of 25 minutes. What percentages of calls are completed?
Interpret values of b1, b2, b3 and b4 in this estimated regression equation.
To find out the probability that the age of a randomly selected CEO. The average age of CEOs is 56 years. Suppose the variable is normally distributed.
Carry out F test for significance of straight line regression of Y on X and interpret your results.
A radio station wants to know if residents in their area are in favor of a proposed tax increase. They invite listeners to call in to respond to the poll. 645 of the 800 who responded were against the tax.
Describe the optimal solution to a linear programming problem. comprise the following constraints from a two -variable linear program.
Assume 1.5% of antennas on new Nokia cell phones are imperfect. For random sample of 200 antennas, determine the probability that: None of the antennas is defective.
Enter relative proportions of the 3 samples in order (20,50,30) in "Expected values" area.
Determine the probability that Mary obtains exactly one Head.
The intelligence Quotient test scores normally distributed with a mean of 100 and a standard deviation of 15.
Concept of statistical signi cance
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