According to chemical engineering, an important property of fiber is its water absorbency. the average percent absorbency of 12 randomly selected pieces of cotton fiber was found to be 20 with a standard deviation of 1.5. a random sample of 10 pieces of acetate yielded an average percent of 12 with a standard deviation of 1.25. is there strong evidence that the population mean percent absorbency is significantly higher for cotton fiber than for acetate? assume that the percent absorbency is approximately normally distributed and that the population variances in percent absorbency for the two fibers are the same. use a significance level of 0.05.

You are a manager at asda. you have been given the demand data for the past 10 weeks for swim rings for children. you decide to run multiple types of forecasting methods on the data to see which gives you the best forecast. if you were to use exponential smoothing with alpha =.8, what would be your forecast for week 22? (the forecast for week 21 was 1277.) week demand 12 1317 13 1307 14 1261 15 1258 16 1267 17 1256 18 1268 19 1277 20 1277 21 1297

Casey communications recently issued new common stock and used the proceeds to pay off some of its short-term notes payable. this action had no effect on the company's total assets or operating income. which of the following effects would occur as a result of this action? a. the company's current ratio increased.b. the company's times interest earned ratio decreased.c. the company's basic earning power ratio increased.d. the company's equity multiplier increased.e. the company's debt ratio increased.

Mauro products distributes a single product, a woven basket whose selling price is $15 and whose variable expense is $12 per unit. the company’s monthly fixed expense is $4,200. required: 1. solve for the company’s break-even point in unit sales using the equation method. 2. solve for the company’s break-even point in dollar sales using the equation method and the cm ratio. (do not round intermediate calculations. round "cm ratio percent" to nearest whole percent.) 3. solve for the company’s break-even point in unit sales using the formula method. 4. solve for the company’s break-even point in dollar sales using the formula method and the cm ratio. (do not round intermediate calculations. round "cm ratio percent" to nearest whole percent.)