Mathematics, 26.11.2019 03:31 matius0711
Suppose that administrators at a large urban high school want to gain a better understanding of the prevalence of bullying within their school. they select a random sample of 200 students who are asked to complete a survey anonymously. of these students, 63 report that they have experienced bullying. use this information to find a 90% z-confidence interval for p, the true proportion of students at this school who have experienced bullying. give the limits (bounds) of the confidence interval as a proportion, precise to three decimal places.
lower limit =
upper limit =
Answers: 3
Mathematics, 21.06.2019 20:30
Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?
Answers: 1
Mathematics, 21.06.2019 21:40
Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.
Answers: 1
Mathematics, 22.06.2019 01:30
Talia grouped the terms and factored out the gcf of the groups of the polynomial 15x2 – 3x – 20x + 4. her work is shown below. (15x2 – 3x) + (–20x + 4) 3x(5x – 1) + 4(–5x + 1) talia noticed that she does not have a common factor. what should she do?
Answers: 1
Suppose that administrators at a large urban high school want to gain a better understanding of the...
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