Mathematics, 28.01.2020 21:41 nerikzagallegos
Gwhich statement is true below for the size of the confidence interval for µ? group of answer choices a. the confidence interval increases as the standard deviation increases. b. the confidence interval increases as the standard deviation decreases. c. the confidence interval increases as the sample size increases. d. the t-value for a confidence interval of 95% is smaller than for a confidence interval of 90%
Answers: 3
Mathematics, 21.06.2019 15:00
Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.
Answers: 2
Mathematics, 21.06.2019 15:30
What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.
Answers: 3
Mathematics, 21.06.2019 18:40
Acircle has a circumference of 28.36 units what is the diameter of the circle
Answers: 2
Mathematics, 21.06.2019 19:10
Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?
Answers: 1
Gwhich statement is true below for the size of the confidence interval for µ? group of answer choic...
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