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Ten volunteers recorded their blood pressure in a room with an aquarium and then in a room without one. The appropriate design for testing the significance of the difference between the means is ________

a. z test
b. related samples t test
c. independent samples t test
d. one sample t test

Respuesta :

Considering that the volunteers will record the standard deviation for each sample, and the samples are independent, the correct option is:

c. independent samples t test

  • The volunteers will record the standard deviation for the sample, while the standard deviation for the population is unknown, hence, a t-test is used.
  • There are two samples, one for the pressure in a room with an aquarium, and other for the pressure in a room without one.
  • The values in one sample do not affect the values in the other sample, hence they are independent.

Considering the three bullet points above, option c is correct.

To learn more about the use of t-tests, you can take a look at https://brainly.com/question/13873630

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