Value of the confidence coefficient
Estimate the value of the confidence coefficient z (a/2) for the condition below:
1 - a = 0.90
Do not understand.
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Suppose there are 18 homes in the Quail Creek area as well as 9 of them have the security system. Four homes are chosen at random: Determine the probability all four of the chosen homes have a security system?
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Determine the probability that 6 or more were female? Compute the probability that fewer than 4 were female? Answer part (a) for the period from the 1918 to the present.
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