Wednesday
April 16, 2014

Homework Help: statistics

Posted by Anonymous on Saturday, August 11, 2012 at 11:38pm.

For normal population mean 60, standard deviation 15, after treatment is given to the member of sample , the sample mean is 65, and sample size is 25.
is the sample mean sufficient to conclude that the treatment has significant effect? Give reason for decision?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics - a population has mean 15 and standard deviation 5. if 68% of the ...
statistics - Assume the population distribution of FEV is normal with standard ...
Math - The mean of a sample of 25 was calculated as xbar = 500. The sample was ...
Math (Statistic) - Considered the sampling distribution of a sample mean ...
statistics - 5) The lifetime of a medical device s a normally distributed rv ...
statistics - How do we compute sample size fluctuations? Suppose we have a ...
Statistics - 1) Find the missing parameter 1.mean 15, 30.15 %, above 50; what is...
Statistics - The t distribution should be used when ___. the sampling population...
Statistics - This is the first question..... For a population that has a ...
Mathematics - The standard deviation of given population is 4.5 with a mean of ...

Search
Members