Posted by Alica on Thursday, March 18, 2010 at 4:47am.
For the past 20 years, the high temperature on April 15th has averaged µ = 62 degrees with a standard deviation of σ = 4. Last year, the high temperature was 72 degrees. Based on this information, last year's temperature on April 15th was the following.
a. far above average
b. above average, but it is impossible to describe how much above average
c. There is not enough information to compare last year with the average.
d. a little above average

Statistics 250  drwls, Thursday, March 18, 2010 at 8:50am
2.5 standard deviations above average is far above average. That number implies a probability of 0.4% that high temperatre is 72 or above.

Statistics 250  Anonymous, Wednesday, March 23, 2011 at 3:40pm
far above average

Statistics 250  Maria, Tuesday, October 14, 2014 at 4:04pm
a.far above average

Statistics 250  Anonymous, Wednesday, March 4, 2015 at 11:14pm
ERE

Statistics 250  Anonymous, Thursday, June 18, 2015 at 6:50pm
For the past 20 years, the high temperature on April 15th has averaged ì = 62 degrees with a standard deviation of ó = 4. Last year, the high temperature was 72 degrees. Based on this information, last year's temperature on April 15th was the following
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