Ricardo lost 6 golf balls while playing yesterday. he bought a box of 12 golf balls, then lost 4 on the course today. he now has 18 golf balls. how many golf balls did ricardo have to begin with?

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.