Here are summary statistics for randomly selected weights of newborn​ girls: n=185​, x bar = 31.4 ​hg, s=7.5 hg. Construct a confidence interval estimate of the mean. Use a 95​% confidence level.

What is the confidence interval for the population mean μ​?

Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*