Question 1
Calculate the mean, median, and geometric mean for the following numbers: 710, 27,000, 1400, and 260. Round to the nearest tenth.
Question 2
Suppose the manager of a large high-end jewelry store wants to estimate the amount spent by customers during the holiday season. She took a random sample of customers and recorded the amount they spent. A histogram of the data shows that the data is strongly left-skewed. The figures below show the confidence intervals for the mean amount spent using (A) raw (untransformed) data, and (B) log-transformed data, which showed a more normally distributed data set. Use this information to answer the question.
Calculate the width of both intervals (note that you will need to convert the log-transformed interval back into dollars). Which interval is narrower?
◦ Width of interval for untransformed data: 111.2; width of interval for transformed data: 204.6. The width of the interval for the untransformed data is narrower.
◦ Width of interval for untransformed data: 55.6; width of interval for transformed data: 111.2. The width of the interval for the log transformed data is narrower.
◦ Width of interval for untransformed data: 111.2; width of interval for transformed data: 92.7. The width of the interval for the log transformed data is narrower.
◦ Cannot be determined with the given information
The mark-recapture technique is often used to estimate population size.
Large regions of the Boreal forest in Alberta have been divided into a grid due to industrial develo
Glioma. (a) Illustration of a large glioma (colored area) within the left cerebral hemisphere in a s
ESM Study of Time Spent with Family
Washing hands and removing jewelry are two important safety habits all service technicians ...
Find the factor demand for labour and the amount of output it will produce. Show all ...