Mathematics, 16.03.2020 23:25 QueensQueens
In a random sample of 80 teenagers, the average number of texts handled in a day is 50. The 96% confidence interval for the mean number of texts handled by teens daily is given as 46 to 54. a) What is the standard deviation of the sample? b) If the number of samples were doubled, by what factor would the confidence interval change (keeping the same confidence level?)
Answers: 2
Mathematics, 21.06.2019 19:30
Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?
Answers: 1
Mathematics, 21.06.2019 19:30
According to the data set, where should the upper quartile line of the box plot be placed?
Answers: 1
Mathematics, 21.06.2019 20:00
Simplify (2^5/3^2)^4 a. 2^20/3^8 b. 2^9/3^8 c. 8^5/12^2 d. 2/3^2
Answers: 1
Mathematics, 21.06.2019 22:30
What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges
Answers: 3
In a random sample of 80 teenagers, the average number of texts handled in a day is 50. The 96% conf...
History, 12.10.2020 03:01
Mathematics, 12.10.2020 03:01
Mathematics, 12.10.2020 03:01
Computers and Technology, 12.10.2020 03:01
Mathematics, 12.10.2020 03:01
History, 12.10.2020 03:01
Mathematics, 12.10.2020 03:01
Mathematics, 12.10.2020 03:01
Mathematics, 12.10.2020 03:01
Mathematics, 12.10.2020 03:01
Mathematics, 12.10.2020 03:01