- whether the situation is an example of an experiment or an observational study. explain. a nutritionist wants to know if taking vitamins keeps people from getting colds. she gives 100 people a vitamin supplement for 2 months, and compares the results to 100 people who do not take vitamins. 3 1 a) this is an experiment. the nutritionist is applying a treatment (taking vitamins) instead of simply gathering data. b) this is an observational study. the nutritionist is applying a treatment (taking vitamins) instead of simply gathering data. c) this is an observational study. the nutritionist gathers data instead of applying a treatment. 4 d) this is an experiment. the nutritionist gathers data instead of applying a treatment.
Get the answer

Category: literature |
Author: Selma Yafa

## Related Questions

##### - "samuel's memory" which word most contributes to a tone of hopelessn

##### - (09.02) tom rolls a number cube twice. what is the probability that

## Category

## business

- (1 point) 2. the average speed of oxygen molecules in air is about 0 km/h 170 km/h 1700 km/h

## statistics

- (11) deduce the number of dyes in food colouring h. (iii) suggest why food colouring f does not move during the experiment. (iv) explain which two f

## business

- (for 10 points!) alfred draws candles randomly from a pack containing 4 colored candles of the same shape and size. there are 2 red candles, 1 gree