SOLUTION: 1.The Java computer language, developed by Sun Microsystems, has the advantage that its programs can run on types of hardware ranging from mainframe computers all the way down to h
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Question 1163623: 1.The Java computer language, developed by Sun Microsystems, has the advantage that its programs can run on types of hardware ranging from mainframe computers all the way down to handheld computing devices or even smart phones. A test of 100 randomly selected programmers revealed that 71 preferred Java to their other most used computer languages. Construct a 95% confidence interval for the proportion of all programmers in the population from which the sample was selected who prefer Java. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! the middle of the interval is the point estimate or 0.71
the half-interval is z*sqrt(P*(1-P)/N)
=1.96* sqrt (0.71.*0.29/100)
=0.0889
so the interval is ((0.6211, 0.7989)
