Mathematics, 31.03.2021 18:10 jacesmokesloud7254
1. Reese believes the students in her large high school spend way too much time on their phones and other devices. To investigate, she estimates the mean amount of daily screen time for all the students in her school by taking a random sample of 50 students. She finds the average daily screen time for the members of the sample is x = 7.1 hours with a standard deviation of s, = 2.4 hours. (a) Construct and interpret a 90% confidence interval for the mean amount of daily screen time for all the students in this school. Snooifin name of the procedure:β
Answers: 3
Mathematics, 21.06.2019 16:00
Areal estate agent earns $32,000 a year plus $1,000 for each apartment he sells. write an equation that shows the relationship between the number of apartments abe sells,n, and the total amount he earns in a year,e. what is the total amount abe would earn from selling 10 apartments in one year
Answers: 3
Mathematics, 21.06.2019 16:30
Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?
Answers: 2
Mathematics, 21.06.2019 21:10
Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. β 6 β
β 2 2. ? 3. mβ 6 = mβ 2 3. def. of congruent 4. β 6 is supp. to β 8 4. def. of linear pair 5. β 2 is supp. to β 8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem
Answers: 3
1. Reese believes the students in her large high school spend way too much time on their phones and...
Mathematics, 17.09.2020 17:01
Mathematics, 17.09.2020 17:01
Mathematics, 17.09.2020 17:01
Mathematics, 17.09.2020 17:01
Mathematics, 17.09.2020 17:01
Mathematics, 17.09.2020 18:01
Mathematics, 17.09.2020 18:01
Mathematics, 17.09.2020 18:01
Mathematics, 17.09.2020 18:01
Mathematics, 17.09.2020 18:01
Mathematics, 17.09.2020 18:01
Mathematics, 17.09.2020 18:01
Mathematics, 17.09.2020 18:01
Mathematics, 17.09.2020 18:01
World Languages, 17.09.2020 18:01
Mathematics, 17.09.2020 18:01
Chemistry, 17.09.2020 18:01
Mathematics, 17.09.2020 18:01
Mathematics, 17.09.2020 18:01
Mathematics, 17.09.2020 18:01