Mathematics, 18.02.2020 00:34 mariahbrooks
A library wants to determine the effectiveness of their summer literacy program among low-income children. Because surveying the large numbers of students in the program would require too many resources the library staff interviews 30 randomly chosen children among the low-income program attendees. The 30 sampled children are given a reading test before and after the program. A) The difference in the reading test scores (after – before) has mean 10 and standard deviation 4. Assuming the score differences are normally distributed, what percent of the children showed any improvement (difference > 0) in reading ability?B) What percent of children improved by more than 15 points?
Answers: 1
Mathematics, 21.06.2019 16:30
Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls
Answers: 1
Mathematics, 21.06.2019 16:30
Ahome improvement store rents it’s delivery truck for $19 for the first 75 minutes and $4.75 for each additional 1/4 hour. if a customer rented the truck at 11: 10 am and returned the truck at 1: 40 pm the same day, what would his rental cost be?
Answers: 1
Mathematics, 21.06.2019 18:40
The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?
Answers: 2
A library wants to determine the effectiveness of their summer literacy program among low-income chi...
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