Mathematics, 24.04.2020 16:25 meganwintergirl
A student would like to estimate the proportion of the senior class that plans to attend prom this year. The student goes to the guidance office and gets a list of the names of all 274 seniors. Using the list, she selects a simple random sample of 50 students and finds that 76% of the selected students plan to attend prom this year. She would like to construct a 95% confidence interval for the proportion of the entire senior class that plans to attend prom this year. Are the conditions for inference met
Answers: 2
Mathematics, 21.06.2019 17:00
Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?
Answers: 1
Mathematics, 21.06.2019 17:00
Use the expression below.β4b + 8c + 12 β 8b β 2c + 6part asimplify the expression. enter your answers in the boxes. b + c + part bfactor the simplified expression using the gcf. a. 2(β2b + c + 3) b. 3(β2b + c + 3) c. 4(β2b + c + 3) d. 6(β2b + c + 3)part cwhat is the value of the expression when b = 2 and c = β3? enter your answer in the box.
Answers: 1
Mathematics, 21.06.2019 18:30
The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy β 15x = 125 b) 5xy + 15x = 125 c) 15x2 β 5xy = 125 d) 15x2 + 5xy = 125
Answers: 2
Mathematics, 21.06.2019 21:30
The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet
Answers: 3
A student would like to estimate the proportion of the senior class that plans to attend prom this y...
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