Mathematics, 30.07.2020 21:01, tytenaedwards6441
Researchers are planning a study to estimate the impact on crop yield when no-till is used in combination with residue retention and crop rotation. Based on data from a meta-analysis of 610610 small farms, the researchers estimate there is a 2.5%2.5% decline in crop yield when no-till is used with residue retention and crop rotation. Suppose the researchers want to produce a 99%99% confidence interval with a margin of error of no more than 5.5%.5.5%. Determine the minimum sample size required for this study. The sample size needed to create a confidence interval estimate depends on the margin of error, the initial estimated proportion, and the confidence level. Be sure to use proportions rather than percentages. Round your final answer up to the nearest whole number. =n= field comparisons
Answers: 2
Mathematics, 21.06.2019 18:20, Karamatullah
The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?
Answers: 1
Mathematics, 22.06.2019 00:20, mya1318
Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte
Answers: 2
Researchers are planning a study to estimate the impact on crop yield when no-till is used in combin...