me Poll ! POI ? Source: ABCNews.com Poll, www.pollingreport.com 10. Truck Colors In a recent year, the most popular colors for light trucks were white, 31%; black, 19%; silver 11%; 11-11 600 Chapter 11 Chi-Square and Analysis of Variance (ANOVA) red 11%; gray 10%; blue 8%; and other 10%. A survey of randomly selected light truck owners in a particular area revealed the following. At a = 0.05, do the proportions differ from those stated? White Black Silver Red Gray Blue Other 45 32 30 30 22 15 6. Source: World Almanac.

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.