Which of the following statements is true about using samples for research studies instead of entire populations? Using a sample is more expensive, because more care must be taken selecting subjects.

Using a sample is more time-intensive, because more care must be taken selecting subjects.

Using a sample is more wasteful, because data about the rest of the population is not included.

Using a sample is more accurate, because more care must be taken assessing each response.

Please help!

The “rule of 72” is used to approximate the time required for prices to double due to inflation. if the inflation rate is r%, then the rule of 72 estimates that prices will double in 72/r years. for instance, at an inflation rate of 6%, prices double in about 72/6 or 12 years. write a program to test the accuracy of this rule. for each interest rate from 1% to 20%, the program should display the rounded value of 72/r and the actual number of years required for prices to double at an r% inflation rate. (assume prices increase at the end of each year.)

An ou structure in your domain has one ou per department, and all the computer and user accounts are in their respective ous. you have configured several gpos defining computer and user policies and linked the gpos to the domain. a group of managers in the marketing department need different policies that differ from those of the rest of the marketing department users and computers, but you don't want to change the top-level ou structure. which of the following gpo processing features are you most likely to use? a, block inheritance b, gpo enforcement c, wmi filtering d, loopback processing

Which option completes the explanation for conflict of interest in an organization