Mathematics, 17.10.2019 19:00 727
Aresearcher representing a small-town mayor wants to know how many total phone calls she needs to make in order to estimate the mayor’s approval rating. respondents will be asked, "do you approve of the mayor? " and they will respond either "yes" or "no". the researcher wants a low standard level of confidence. the researcher will be satisfied with a margin of error of ±3%. 4,000 people live within the city limits (the study only applies to those that live within the city limits). last year, the researcher completed 1 phone survey for every 4 people that were called. in order to get the required sample size, how many phone calls will she have to make?
Answers: 3
Mathematics, 21.06.2019 14:00
Ms. sutton recorded the word counts and scores of the top ten essays in a timed writing contest. the table shows her data. how does the word count of an essay relate to its score in the contest? word count tends to decrease as the score decreases. word count tends to increase as the score decreases. word count tends to remain constant as the score decreases. word count has no apparent relationship to the score of the essay.
Answers: 1
Mathematics, 21.06.2019 18:30
Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.
Answers: 1
Mathematics, 21.06.2019 19:00
Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°
Answers: 2
Mathematics, 21.06.2019 19:00
In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.
Answers: 3
Aresearcher representing a small-town mayor wants to know how many total phone calls she needs to ma...
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