Mathematics, 21.03.2020 03:09 Caixiayang3613
A poll conducted in 2013 found that the proportion of of U. S. adult Twitter users who get at least some news on Twitter was 0.52. The standard error for this estimate was 0.024, and a normal distribution may be used to model the sample proportion. Construct a 99% confidence interval for the fraction of U. S. adult Twitter users who get some news on Twitter, and interpret the confidence interval in context.
Answers: 3
Mathematics, 21.06.2019 16:20, hann647
Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants
Answers: 1
Mathematics, 21.06.2019 20:00, trevorhenyan51
Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.
Answers: 1
A poll conducted in 2013 found that the proportion of of U. S. adult Twitter users who get at least...
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