Someone please help me with STAT.
2. A survey of licensed drivers inquired about running red lights. One question asked, "Of every ten motorists who run a red light, about how many do you think will be caught?" The mean result for 934 respondents was x(bar)= 2 and the standard deviation was s = 1.91. For this large sample, s will be close to the population standard deviation ?, so suppose we know that ? = 1.91.
Give a 95% confidence interval (±0.01) for the mean opinion in the population of all licensed drivers:___ ± ___ .
The distribution of responses is skewed to the right rather than Normal.
3. Will it strongly affect the z confidence interval for this sample?
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Dec 08, 2020EXPERT
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