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Consider two populations. A random sample of 28 observations from the first population revealed a sample...

Consider two populations. A random sample of 28 observations from the first population revealed a sample mean of 40 and a sample standard deviation of 12. A random sample of 32 observations from the second population revealed a sample mean of 35 and a sample standard deviation of 14

(a) Using a .05 level of significance, test the hypotheses Ho : U1 - U2 = 0 and H1 : U1 - U2 =/ (not equal to) 0 respectively. Explain your conclusions.

(b) What is the p-value of your result in part (a)? Interpret the p-value.

(c) Construct a 95% confidence interval for the difference between U1 and U2. Interpret the confidence interval.

(d) Explain the relationship between your answers in part (a) and (c)

PLEASE SHOW WORK! IM TRYING TO LEARN!!! THANKS!

Math   Statistics-And-Probability   
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