The monthly stock return of IBM is normally distributed with mean 0.08 and standard deviation 0.04. (i)What is (?)? What is ??(?)? What is ?(?)? (ii)What is the probability that the stock return is lower than 0.08? (iii)What is the probability that the stock return is between 0.04 and 0.07? (b)What five steps do we need to follow when conducting hypothesis testing? (c)Based on a random sample of 16 customers, the mean amount spent on fast food by an individual per year equals $240. At the significance level ?? = 0.05, Helen would like to test if the population mean amount spent on fast food per year equals $311, as reported by an industry report. It is known that the amount spent on fast food per year is normally distributed with a standard deviation $140
The monthly stock return of IBM is
(i)What is (?)? What is ??(?)? What is ?(?)?
(ii)What is the probability that the stock return is lower than 0.08?
(iii)What is the probability that the stock return is between 0.04 and 0.07?
(b)What five steps do we need to follow when conducting hypothesis testing?
(c)Based on a random sample of 16 customers, the mean amount spent on fast food by an individual per year equals $240. At the significance level ?? = 0.05, Helen would like to test if the population mean amount spent on fast food per year equals $311, as reported by an industry report. It is known that the amount spent on fast food per year is normally distributed with a standard deviation $140
Step by step
Solved in 4 steps with 7 images
