Descriptives Statistic Std Emor 3.5761 07275 Duration of 3,4328 eruption in minu

Question

Descriptives Statistic Std Emor 3.5761 07275 Duration of 3,4328 eruption in minutes 95% Confidence Lower Bound Interval for Mean Upper Bound 3.7195 3.6023 5% Trimmed Mean 4,0000 Median 1.175 Variance 1.08395 Std. Deviation 1.70 Minimum 5.20 Maximum 3.50 Range 2.10 Interquartile Range 163 599 Skewness .325 1.192 Kurtosis j) Now use the explore command, choose the statistics option and then check the percentile box Look at your results and fill in the blanks below: 95% percentile range for duration of eruptions: What exactly does this tell you? Explain why you got a different answer for the 95% confidence interval and the 95% percentile range.

Explanation / Answer

From output, Range = 3.50

Range tells you the spread of sample. Here sample data lies between 1.70 and 5.20, that's why range = 5.20-1.70=3.50. Confidence interval gives range of plausible values of true means while range is spread of sample data. Both are different.

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