subject
Mathematics, 20.11.2020 06:20 2alshawe201

Some newer phone provide a screen rome summary, which shows the amount of screen time for a user in a given week. A student would like to estimate the mean screen time for all phone users. she asks a random sample of 50 students at her school to share their screen time for the past 24 hours. the main screen time for The Chosen students is 2.73 hours. which statement is appropriate interpretation of the results A. all students probably have screen time close to 2.73 hours

B. to obtain a better estimate of mean screen time more students should be surveyed

C. because of undercoverage 2.73 likely underestimates the mean screen time of all phone users

D. 2.73 hours is a suitable estimate for me screen time of all phone users because a random sample was taken

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 14:30
The floor plan of a room has a scale of 2.5 in.: 35 ft. in the drawing, the length of the room is 8 in. and the width of the room is 6 in. what is the perimeter of the actual room?
Answers: 3
question
Mathematics, 21.06.2019 15:50
Plz heeeeeeelp plz give me the answer
Answers: 1
question
Mathematics, 21.06.2019 18:00
Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?
Answers: 1
question
Mathematics, 21.06.2019 19:00
The probability that you roll a two on a six-sided die is 1 6 16 . if you roll the die 60 times, how many twos can you expect to roll
Answers: 1
You know the right answer?
Some newer phone provide a screen rome summary, which shows the amount of screen time for a user in...
Questions
question
Mathematics, 22.09.2019 07:30
question
Mathematics, 22.09.2019 07:30
Questions on the website: 13722360