hinacat87
06.12.2019 •
Mathematics
Agroup of statistics students conducted a random sample of 64 students at their college. their findings showed that the sampled students studied an average of 15 hours per week with a standard deviation of 5 hours. what is the value for the standard error of the means?
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Ответ:
0.8333
Step-by-step explanation:
Given that a group of statistics students conducted a random sample of 64 students at their college.
Their findings showed that the sampled students studied an average of 15 hours per week with a standard deviation of 5 hours
i.e we have
sample size =
Standard deviation of sample s =
By central limit theorem we have sample mean will follow a normal distribution with mean = sample mean and std error = std deviation /square root of n.
Substitute the values to get
Standard error of means =
Ответ:
B
Step-by-step explanation: