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lina2011 [118]
3 years ago
8

The time it takes for climbers to reach the highest point of a mountain is normally distributed with a standard deviation of 0.7

5 hours. If a sample of 35 people is drawn randomly from the population, what would be the standard error of the mean of the sample?
0.02
0.13
0.17
0.40
0.76
Mathematics
2 answers:
blondinia [14]3 years ago
6 0
The best approach to this is to use the formular 
Standard error = standard deviation / sqrt( sample size) 
 standard deviation = 0.75 hours
 sample size = 35
 Hence, Standard error = 0.75 /sqrt(35) = 0.126 = 0.13
Troyanec [42]3 years ago
5 0
0.75/sqrt=.125 then rounding it to 0.13 
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