Advanced Placement (AP), 15.04.2021 18:50 Usman458
100 Baltimore households are randomly selected and asked about
their annual income. The average annual income of those families is
$53,028 with standard deviation $9.054. The average household
income in Baltimore in 2019 was $50,379,
1. write the null and alternative hypotheses.
Answers: 2
Advanced Placement (AP), 23.06.2019 08:30
The 529 plan is the type of plan. a. financial fid. b. grant. c. tuition savings. d. scholarship
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Advanced Placement (AP), 26.06.2019 01:40
Abdid is an astronomer who has been observing objects that orbit the sun in the asteroid belt. he finds a previously undiscovered round, rocky object that is not similar in shape to the rest of the asteroids. what has abdid most likely found?
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Advanced Placement (AP), 26.06.2019 22:30
After a heavy rainstorm vegetation on a hillslope was completely removed. how will this removal of vegetation affect the relative amounts of infilitration and runoff that occur during the next heavy rainstorm.
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Advanced Placement (AP), 27.06.2019 12:20
In a recent telephone survey, 5,000 randomly selected teenagers were asked to cite their primary social network site. six of 10 teenagers said they use mybook as their primary social network site. a 95% confidence interval to estimate the true proportion of teenagers who use mybook as their primary social network site is found to be (0.2964, 0.9036). which of the following is a correct interpretation of the confidence level? ninety-five percent of all samples of this size would yield a confidence interval of (0.2964, 0.9036). there is a 95% chance that the true proportion of teenagers who use mybook as their primary social network site is in the interval (0.2964, 0.9036). ninety-five percent of the time, the procedure used to generate this interval will capture the true proportion of teenagers who use mybook as their primary social network site. ninety-five percent of all the samples of size 5,000 lie in the confidence interval (0.2964, 0.9036).
Answers: 3
100 Baltimore households are randomly selected and asked about
their annual income. The average ann...
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