10. According to a 2018 report, the mean amount of data used byall smartphone users with unlimited data plans was 4.87 GB permonth. A company would like to determine if the mean amount of dataused per month by smartphone user is different that it was in 2018.In order to investigate the issue, random sample of 900 smartphoneusers was selected.
Determine the null and alternative hypotheses:
H0=
HA=
A Type I error in the context of this problem would be:
A Type II error in the context of this problem would be:
11. According to a report published last year by Pew Research,23% of all American adults lived in a middle-class household. Thisyear, an economist collected data from a random sample of 1210American adults in order to determine if the percent of Americanadults who live in a middle-class household is lower than 23%.State the hypotheses and explain the possible Type 1 and Type 2errors.
Determine the null and alternative hypotheses:
H0=
HA=
A Type I error in the context of this problem would be:
A Type II error in the context of this problem would be:
