A marketing study of 800 adults in the 18– 34 age group reported the following information:
• Spent less than $ 100 but more than $ 0 on children’s clothing per year: 50 responses
• Sspent $ 100–$ 499.99 on children’s clothing per year: 275 responses
• Spent $ 500–$ 999.99 on children’s clothing per year: 175 responses
• Spent nothing: the remainder

Develop a spreadsheet to estimate the sample mean and sample standard deviation of spending on children’s clothing for this age group using formulas (4.14) and (4.16).