???I also having problem with this one, thanks for help.
You observe the following sample drawn from a normal random variable X~N: (µ , 4.6, 8.1, 8.9, 5.2 6.5, 6.3, 7.1, 5.8, 4.9, 7.3.
a)Use the sample to estimate µ and SD .
b)Estimate the variance of the sample average
c) Find a 95% confidence interval for µ .
d) Test the null hypothesis H0:µ = 9 against H0 :µ ? 9 with a =1%
e) Consider the null hypothesis H0: µ = µ0 against H0:µ ? u0 with a = 5%. For which values of
µ0 will you not reject the null hypothesis? Relate your answer to your answer to c) and d).
For a) i get µ 6,47 and SD 1,4024?
Thanks again
You observe the following sample drawn from a normal random variable X~N: (µ , 4.6, 8.1, 8.9, 5.2 6.5, 6.3, 7.1, 5.8, 4.9, 7.3.
a)Use the sample to estimate µ and SD .
b)Estimate the variance of the sample average
c) Find a 95% confidence interval for µ .
d) Test the null hypothesis H0:µ = 9 against H0 :µ ? 9 with a =1%
e) Consider the null hypothesis H0: µ = µ0 against H0:µ ? u0 with a = 5%. For which values of
µ0 will you not reject the null hypothesis? Relate your answer to your answer to c) and d).
For a) i get µ 6,47 and SD 1,4024?
Thanks again
