"What method of data collection would you use to collect data for a study where a drug was given to 10 patients and a placebo to another group of 10 patients to determine if the drug has an effect on a patient's illness?

a) use sampling

b) take a census

c) perform an experiment

d) use a simulation"

- Sent to Statistics And Probability Expert Tutor on 5/16/2010 at 8:46pm

You asked:

"A recent survey by a national women's association showed that the average salary of 3500 of its 65,000 membership was $73,000. This number is a parameter or statistic?"

- Sent to Statistics And Probability Expert Tutor on 5/16/2010 at 9:09pm

You asked:

"Suppose the standard deviation is 13.1. What is the variance?

171.62

13.1

15.3

3.62"

a) use sampling

b) take a census

c) perform an experiment

d) use a simulation"

- Sent to Statistics And Probability Expert Tutor on 5/16/2010 at 8:46pm

You asked:

"A recent survey by a national women's association showed that the average salary of 3500 of its 65,000 membership was $73,000. This number is a parameter or statistic?"

- Sent to Statistics And Probability Expert Tutor on 5/16/2010 at 9:09pm

You asked:

"Suppose the standard deviation is 13.1. What is the variance?

171.62

13.1

15.3

3.62"

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