Construct 95 % confidence intervals for the population mean . Interpret the results . Gold prices From a random sample of 48 business days . Gold price had a mean of $ 1368.48. Assume the population standard deviation is $ 10.67.

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000