We have calculated a 95% confidence interval for a proportion and would prefer the confidence interval to be more precise, that is narrower. Using the same sample, we can narrow the confidence interval using which of the following? A) increasing the confidence level B) decreas...
In a poll of voters in a certain city, 32% said that they backed a bill which would limit growth and development in their city. The margin of error was reported as 1.7% with 90% confidence. Determine the bounds for the confidence interval. A) (88.3%, 91.7%) B) (30%, 34%) C) (3...
Which of the following is not an assumption or condition that needs to be checked for the one-proportion z-interval? A) Success/Failure Condition B) > 10% condition C) Independence D) < 10% Condition E) Randomization Is the answer C?
A study of 902 decisions (to grant parole or not) made by the Nebraska Board of Parole produced the following 95% confidence interval: (56.1%, 62.5%) What is the margin of error? A) 1% B) 6.4% C) 59.3% D) 3.2% Is the answer C?
what's the density of a cube of an unknown substance if mass is 45.2g and the side of a cube is 3.2cm?
a 9 foot board is cut into two pieces .one is 3.5 feet longer than the other. how long is the longer piece?
A rock with a mass of 0.3 kg has a kinetic energy of 43.2 j when thrown. What was the speed at which it was thrown?
A boy standing on a high diving board has a mass of 45 kg and a total gravitational potential energy of 2700 j. How high is the diving board? What is the answer to this question and how did you come up with the answer.
What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA, A2) at pH 8.67? The acid dissociation constant values for piperazine are Ka1 = 4.65×106 and Ka2 = 1.86×1010.
Math Calculator Question
How would I plug the following formula in a TI-30X calculator: P(5)= (10 C 5)(0.20^5)[0.80^(10-5)] When I try to do it, I get 0.000104858, but that is not the correct answer.