Suppose that demand has been fluctuating randomly over the p…

Suppose that demand has been fluctuating randomly over the past six months and is expected to continue similarly through the remainder of the year.  Given this information, which of the following forecasting methods would be most appropriate for forecasting demand?

In a gallop poll, 750 adults were asked if they consume alco…

In a gallop poll, 750 adults were asked if they consume alcoholic beverages and 440 of them said “yes”. Follow the steps below to construct a 90% confidence interval for the proportion of all adults who consume alcoholic beverages. a) State the value of the sample proportion. (Round to three decimal places) {#1} b) Find the critical value, \( z_{\alpha/2} \). (Round to three decimal places) {#2} c) Calculate the margin of error. (Round 2 decimal places) {#3} d) Using your values from parts (a) and (c), find the limits of the confidence interval. Lower Limit: {#4} Upper Limit: {#5}