1) Margo wants to convince her father to change her curfew from 9 p. m. to 10 p. m. She gathers data on curfew times from a random sample of students at her middle school. Can Margo use these data to present a valid inference that will convince her father? Explain

No

Explanation:

The question said a "random" sample which means that she doesn't know if the curfew of the sample tells her father that other people's curfews are earlier (eg. 8 o'clock), thus persuading her father to change her curfew an hour earlier which is not good for her.

She should organize specific data telling here father that other people have curfews later than 9.