Determine mean and standard deviation of monthly profit
The monthly sales at the computer store have the mean of $25,000 and standard deviation of $4,000. Profits are 30% of sales less fixed costs of $6,000. Determine mean and standard deviation of monthly profit.
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Discuss what would be the product of a Grignard reagent with an acid chloride such as the acetyl chloride? Determine the numbers of moles of the Grignard would react per mol of acid halide?
Suppose you perform an acid-base titration to standardize an HCL solution by placing the 50.00 mL of HCL in a flask with a few drops of indicator solution and you put 0.1523 M NaOH into the buret and the initial reading is 0.55 mL At the end point
Determine the age of a rock whose 40Ar/40Kratio is 1.25?(The half-life of 40K is 1.28 109years.) and calculate the age of a rock whose 40Ar/40Kratio is 1.25 where the half-life of 40K is 1.28 times 109years.
A propellant for rockets is obtained by mixing dinitrogentetroxide N2O4 and the liquids hydrazine N2 H4. These components react to give water vapor and nitrogen gas N2, evolving 1049 kJ of heat at constant pressure when 1 mol of N2O4 reacts
The monthly sales at the computer store have the mean of $25,000 and standard deviation of $4,000. Profits are 30% of sales less fixed costs of $6,000.
A paired-difference experiment dealing with the response latencies for noise detection under two conditions used a sample of twelve 9-month-old children and reported a sample mean difference of 70.1 and standard deviation of 49.4 for the differenc
4 NH3 (g) + 5 O2 (g) yields 4 NO (g) + 6H2O (g). Determine the Heat of Reaction values:NH3 (g) = -45.9kJ; O2 (g) = 0 kJ; NO (g) =90.3 kJ; H2O (g) = -241.8 kJ
Determine the numbers of square kilometers of ocean will be covered by the 1 barrel of oil? If the 1barrel is equal to 31.5 gallons and the oil creates a film of 100nm thick on water.
Assume that we would like to calculate a 99% confidence interval for unknown mean range, µ, of bats using the data in.
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