Percent confidence interval for the population proportion
A random sample of 100 adults was chosen. 80 adults in the sample said they were non-smokers. Develop a 95 percent confidence interval for the population proportion, p, of non-smokers.
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A student reacts 50.0 g of silver (I) nitrate with 20.0 g of copper metal to prepare copper (II) nitrate and silver metal.Write down the net ionic and total ionic equations for this reaction.
Classify the data as either discrete or continuous. What kind of data is provided by statement "Helen finished in 10th place in the ice dancing competition"?
Find value of the investment (if you have 100 shares before split) before and after split? How has split changed (or not changed) overall value of the investment in Pohlman?
Determine the bulk density, in units of g.mL-1, of a metal with an atomic mass of 80.0 g.mol-1. This metal has an FCC crystal structure with a unit cell dimension of a = 0.160 nm.
Discuss the efficiency of elution process to separate cations and anions in solutions which are having the Na, Cu, CrO4, & Cl and suggest how the separation can be improve?
The minimum energy required to knock an electron out of an atom of cesium is 3.43 x 10-19 J. Cesium metal is used in the photocells of automatic door openers.
The total of $12,000 is invested in 2 funds paying 9% and 11% simple interest. If interest for first year is $1,180, how much of $12,000 is invested at 9%?
Ben claims that the average price of the car wash in West Newton is more than $6.00. A sample of five car washes has average price of $6.60 and standard deviation of $1.10. At alpha = 0.05, test Ben's claim. What is the null hypothesis?
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