Confidence interval for variance of the heights
Find out the 95% confidence interval for variance of the heights of maple trees if sample of 26 trees has standard deviation of 10.2 feet.
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Calculate whether the molecule is polar, find out the hybridization of all interior atoms, and make a sketch of the molecule, according to valence bond theory, showing orbital overlap.
In sample of 55 mice, a biologist found that 42% were capable to run a maze in 30 seconds or less. Determine the 90% limit for the population proportion of mice that can run a maze in 30 seconds or less.
In dry cleaning a liquid compound used which contains the 85.5% Cl and 14.5% C by mass and has a molecular weight of the 166 amu. Write down the Lewis formula for the molecule and tell the molecular geometry.
A report states that 46% of home owners have vegetable garden. How large a sample is required to determine the true proportion of home owners who have vegetable gardens to in 4 percentage points with 92% confidence?
Employ the given degree of confidence and sample data to develop a confidence interval for the population proportion p.
To give the sulfur trioxide the sulfur dioxide is oxidized by oxygen. Suppose you have 100.0 g of SO2, 50.0 g ofO2, and after carrying out the reaction you got the 120.0 g of SO3.
Determine the numbers of grams of glucose (C6H6O6) should be dissolved in the 1 liter of water to make a 0.5000 molar solution of glucose in the water?
Determine the minimum sample size you must use to promise that your estimate of p will be within the required margin of error around the population p.
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