Mathematics, 05.11.2019 23:31 dlow4974
Asupervisor records the repair cost for 23 randomly selected stereos. a sample mean of $91.82 and standard deviation of $16.84 are subsequently computed. determine the 98% confidence interval for the mean repair cost for the stereos. assume the population is approximately normal.
find the critical value that should be used in constructing the confidence interval. round your answer to three decimal places.
Answers: 3
Mathematics, 21.06.2019 21:30
The diagram represents the polynomial 4x2 + 23x – 72. what is the factored form of 4x2 + 23x – 72? (4x + 8)(x – 9) (4x – 8)(x + 9) (4x + 9)(x – 8) (4x – 9)(x + 8)
Answers: 2
Mathematics, 21.06.2019 22:00
Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function
Answers: 1
Mathematics, 22.06.2019 02:00
The base of a pyramid is a square with 5 lines of 5cm the slant height of each lateral face of the pyramid is 6 cm what is the surface area of the pyramid
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Asupervisor records the repair cost for 23 randomly selected stereos. a sample mean of $91.82 and st...
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