- Suppose 84 Of Smartphones Sold At A Retail Outlet Require Upgrades A Random Sample Of 29 Smartphones Is Selected Assu 1 (20.77 KiB) Viewed 83 times
- Suppose 84 Of Smartphones Sold At A Retail Outlet Require Upgrades A Random Sample Of 29 Smartphones Is Selected Assu 2 (64.44 KiB) Viewed 83 times
Suppose 84% of smartphones sold at a retail outlet require upgrades. A random sample of 29 smartphones is selected. Assuming independence, use the binomial formula or software (recommended) to answer the following questions.
e) at least 22 require upgrades? f) more than half require upgrades? g) at least 22 but no more than 26 require upgrades? h) less than 20 or more than 25 require upgrades? 2. Calculate the mean and standard deviation of smartphones that require upgrades. Round to 2 decimal places. Mean = Standard Deviation = 3. If you expect to find exactly 78 smartphones that require upgrades, how large a sample should you select? Report the minimum sample size required as an integer.