Question

How Many Apps for Your Smartphone? Arandom sample ofn 19.7, 461 smartphone users in the US in January 2015 found that 355 of them have downloaded an app. Of the n 355 smartphone users who had downloaded an app, the average number of apps downloaded was 10lmstead K and Atkinson M. Apps Permissions in the Google Play Store"pewresearch.org. November 10. 2015 Your answer is incorrect. (a) Give notation for the parameter of interest. × Your answer is incorrect. (b) Give the notation for the quantity we use to make the estimate

Answer 1

Answer:

a) parameter of interest is = $\large \mu$

Because,

Here we want to find the average number of apps downloaded in your mobile.

Which means we want to find the population mean ($\large \mu$).

b) quantity we used to make estimate is = $\large \bar x$

Because,

Point of estimate for population mean is sample mean ($\large \bar x$).