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Fractions and Percentages

Hypothesis Testing : T-test of Multiple Regression Model and Critical Values

T test of a multiple regression model Using observations on each variable, a computer program generated the following multiple regression model: If the standard errors of the coefficients of the independent variables are, respectively, , , , , and , can you conclude that the independent variable is needed in the

Network Model Problem

Juveniles Adults Subpopulation size (aged under 15 years) (aged 15 years and over) (in millions) 1.89 5.31 Birth rate

Math questions ... (Please see attachment for 33 problems)

Please see attachment 1.Factor the trinomial Type N if the trinomial is not factorable 2.Multiply Simplify your answer 3.If a pro basketball player has a vertical leap of about 20 inches, what is his hang time? Use the hang-time function V= The hang time is ----seconds (Simplify your answer. Type an integer

Finance : Shareholder's Equity, Interest, Payback and Percentage Return

1) Brentwood Bat Factory Inc., has current assets of $3,400, net fixed assets of $7,100, current liabilities of $1,900 and long term debt of $5,200. What is the value of the Shareholder's equity account for this firm? How much is net working capital? 4) Assume that a college education will cost $280,000 when your child e

Several rational expression problems

Please see attachment. 6.1 Which numbers cannot be used in place of the variable in each rational expression?. #18 ¬¬¬ 2Y + 1 _______________ y2 _ y - 6 #44 Reduce each rational expression to lowest terms. Assume that the variables represent only numbers for which the denomin

Algebra: Rounding, Conversions and Fractions ... (Please see attached file)

Please show me how to do questions 3 to 10. (Please see attached file) 3. Round each of the following numbers as specified. (a) 508.576 to the nearest hundredth ________________ (b) 508.576 to the nearest tenth ________________ (c) 508.576 to the nearest hundred ________________ 4. Convert each of the following fract

Percentages

In the following problem, answer the given questions that relate to percentages. 1-3-26 Percentages in Media and Advertising a. A New York Times editorial criticized a chart caption that described a dental rinse as one that "reduces plaque on teeth by over 300%." What is wrong with that statement? b. In the New York Times

Percentages

For the Hawkins Company, the monthly percentages of all shipments that were received on time over the past 12 months are 80, 82, 84, 83, 83, 84, 85, 84, 82, 83, 84, and 83. a. Compare a three-month moving average forecast with an exponential smoothing forecast for α =0.2. Which provides the better forecasts? b. What is t

Simulation

Mathematics, topic: Simulation from book Quantitative Methods for master program at Strayer University; see attachment for scans.

Corelation - The data below shows the number of registered automatic weapons, in thousands, and the murder rate, in murders per 100,000, for eight randomly selected states. a. Determine the correlation coefficient between the number of automatic weapons and the murder rate. b. Find the equation of the regression line. c. Approximately what murder rate can we anticipate in a state that has 14 thousand registered weapons? ...

The data below shows the number of registered automatic weapons, in thousands, and the murder rate, in murders per 100,000, for eight randomly selected states. a. Determine the correlation coefficient between the number of automatic weapons and the murder rate. b. Find the equation of the regression line. c. Approximately w

Algebra Exercises- Percentage, fraction and growth rates.

Section 1.2 Diversification. Helen has of her portfolio in U.S.stocks, of her portfolio in European stocks, and of her portfolio in Japanese stocks. The remainder is invested in municipal bonds. What fraction of her portfolio is invested in municipal bonds? What percent is invested in municipal bonds? Section 1.3 Net

simplify exponent and radical expressions

Please see the attachment for equations. 1. Apply the rules of exponents to simply the following: 2. Write each of the following in a radical form: a) (3x)^(1/5) 3. express each of the following in exponent form. 4. simplify the radical expressions 5. For each of the following fractional terms, multiply the numerator and de

Determine upper and lower control limits

1. The overall average on a process you are attempting to monitor is 49 units. The process standard deviation is 1.52. Determine the upper and lower control limits for a mean chart, if you choose to use a sample size of 5. Set z=3. UCLx = ____________ LCLx = ____________ Round your answers to 2 decimal places; for examp

Rate, percentages, and fractions

Can someone please help me out with these problems by explaining them one by one and step by step. Thanks 1. If a person drives 2/3 of a 66-mile trip, how much did he drive? A. 42 miles B. 46 miles C. 44 miles D. 22 miles 2. If Al has 25 neckties and 20% of the neckties are red, how many red neckties does Al have? A

Operations, Estimation, place value

Please see attachment for proper formatting of the table. Exercises help for homework 2, 4, 24, 34, 72, For the decimal 8.57032: 2. What is the place value of 5? 4. What is the place value of 2? Exercises 34. Arrange in order from smallest to largest. 2.05, 25, 2.0513, 2.059, 251, 2.0515, 2.052, 2.0

Basic math

See attached Question 1 Subtract. Use borrowing, if necessary. 6526 -2471 Question 2 Round the decimal to the given place value. 6.66 (nearest tenth) Question 3 Write the fraction. There are 100 centimeters in a meter. What fractional part of a meter does 7 centimete

Write each of the following ratios in simplest form.

Write each of the following ratios in simplest form. 8. The ratio of 5 3/5 to 2 1/10 24. The ratio of 7 dimes to 3 quarters is 34. Crafts. Marc took 3 hours (h) to mow a lawn while Angelina took 150 minutes(min) to mow the same lawn a week earlier. Write the ratio of Marc's time to Angelina's time as a rat

Rational Expressions, Complex Fractions

Can you please answer the following questions showing the work on how you got the answer so that I can understand this... 1/6-5/6= q-1/q-4 - 3q-9/q-4= m/5+m= 4/a-b + 4/b-a= 1/2 + 1/4x divided by x/3- 1/12x=

How can I convert all types of repeating decimals into common fractions?

1) Convert all the following into common fractions: (a) 0.432 (b) 0.11111... (c) 0.011111... (d) 0.0101010... (e) 0.123123123... (f) 2.243243243... (g) 0.939339333933339.... 2. Can all decimals (terminating, repeating and the rest) be written as common fractions? Explain how you know, and describe a general procedure

Reduce each rational expression to lowest terms.

Reduce each rational expression to lowest terms. Assume that the variables represent only numbers for which the denominators are nonzero. Please see the attached file for the fully formatted problems.

Percentages : Plant Efficiency and Capacity

6. If a plant was designed to produce 7,000 hammers per day but is limited to making 6,000 hammers per day because of time needed to change equipment between styles of hammers, what is the utilization? Format as xx.x% (include the % sign.) 7. For the past month, the hammer plant in the above problem, which has an effective ca