statistics
posted by Yadira M .
A random sample of n= 12 is drawn from a population that is normally distributed, and the sample variance is s©÷ = 19.3. Use ¥á = 0.025 in testing
¥Ç₀ : ¥ò©÷ ¡ 9.4 versus ¥Ç©û : ¥ò©÷ > 9.4

Yadira, Marianne, Laura, Vanessa, or whoever  please don't keep switching your name. We know that these statistics problems have been posted from the same computer  and presumably by the same person.

If you are in fact different persons, shouldn't you be helping each other? In any case, together with your course notes, there are sufficient examples for you to understand the subject.
I suggest you work out your next problems and post the results for checking.
Respond to this Question
Similar Questions

business statistics
A random sample of size 15 taken from a normally distributed population reveled a sample mean of 75 and a sample variance of 25. The upper limit of a 95% confidence interval for the population mean would equal? 
statistics
A random sample of n = 30 is drawn from a population that is normally distributed, and the sample variance is s©÷ = 41.5. Use ¥á = 0.05 in testing ¥Ç₀ : ¥ò©÷ = 29.0 versus ¥Ç©û : ¥ò©÷ ¡Á 29.0 
Statistics
Are these statements true or false? 1. The sample mean, the sample proportion and the sample standard deviation are all unbiased estimators of the corresponding population parameters. 2. If the population is normally distributed with 
statistics
Suppose we take a random sample of size n from a normal population with variance, σ2 . It can be shown that (n−1)s2/σ2 has a chisquare distribution with n−1 degrees of freedom, where s is the sample variance. … 
Statistics
If the population is normally distribution then the sample must be normally distributed even for small sample size? 
statistics
A simple random sample of a size n is drawn from a population that is normally distributed. The sample mean, x is found to be 110, and the sample standard deviation, s, is found to be 10. A Construct a 95% confidence interval about … 
statistics
Q Two samples of sizes 8 and 10 are drawn from two normally distributed population having variance 20 and 36 respectively. Find the probability that the variance of the first sample is more than twice the variance of the second sample. 
Math
Two simple of sizes 8&10 are drawn from two normally distributed population having variance 20 and 36 respectively. Find the probality that the variance of the first sample is more than twice the variance of the second sample 
maths
Q Two samples of sizes 8 and 10 are drawn from two normally distributed population having variance 20 and 36 respectively. Find the probability that the variance of the first sample is more than twice the variance of the second sample. 
Statistics
In a certain population the heights of men are normally distributed with mean 168.75 and variance 42.25 those of women are normally distributed with mean 162.50 and variance 36 the probability that the mean height of a random sample …