|
Title: Sales from a chain of computer stores are normally distributed, with an average monthly sales volume ... Post by: blankship on Feb 19, 2023 Sales from a chain of computer stores are normally distributed, with an average monthly sales volume of $280,560. Estimating the amount of monthly variability in sales is of interest to help anticipate normal income fluctuations. A random sample of 8 months’ sales data yields a standard deviation of $10,423. What is a 98% confidence interval for the standard deviation of monthly sales volume? ▸ ($172,694.71, $666,866.84) ▸ ($6152.47, $21,491.21) ▸ ($6123.96, $27,725.40) ▸ ($6415.73, $24,774.57) Title: Re: Sales from a chain of computer stores are normally distributed, with an average monthly sales volume ... Post by: apina on Feb 19, 2023 Content hidden
|