Question

Dr. Morrison is interested in how noise affects student’s learning research methods. She has a group of students work an APA style while listening to background noise, and then she has another group of students work on an APA style but with no background noise. Dr. Morrison then compares the two sets of test scores to each other.

A)Group of answer choices

B)Independent samples t test

C)One sample t test

D)Related samples t test

Dr. Camille Saroyan is a forensic pathologist who specializes in identifying cause of death when the cause is unknown. She wants to know if the best interns for her lab come from private universities or public universities. Dr. Saroyan creates two matched groups of potential interns. She matches the interns on board scores, gender, and GPA. The only difference between the two groups is whether they went to school at a private university or a public university. Dr. Saroyan has all the interns examine the same cases and scores them on how well they do at determining cause of death.

A)Group of answer choices

B)Related samples t test

C)Independent Samples t test

D)One sample t test

E)ANOVA

Joanna Gaines has a daughter (Alex) in the 8^th grade. Her daughter’s class just recently finished taking a national achievement test. Joanna thinks that her daughter’s class is better than the 8^th grade class at the school across town. Joanna asks the school to compare the scores from the two classes to each other.

A)Group of answer choices

B)Independent samples t test

C)One sample t test

D)Related samples t test

Garrett, Cody, Tyler, Coby, and Cory are interested in the effect of morphine on the amount of pain reported by sports injury patients. These “dudes” randomly assign the sports injury patients to one of three groups (morphine, half the normal dose of morphine, or a normal dose of morphine) and then has each of the 3 groups rate the amount of pain they experience.

A)Group of answer choices

B)ANOVA

C)Independent samples t test

D)Related samples t test

E)One sample t test

ANOVA

Answer 1

1)

Dr. Morrison is interested in how noise affects a student’s learning research methods. She has a group of students work an APA style while listening to background noise, and then she has another group of students work on an APA style but with no background noise. Dr. Morrison then compares the two sets of test scores to each other.

Here we have two groups.(one with background noise & another without background noise)

and we want to compare the means of the theses two groups.

two groups are independent of each other.

so it is an independent sample t-test.

Answer:- Independent samples t-test

2)

Dr. Camille Saroyan is a forensic pathologist who specializes in identifying the cause of death when the cause is unknown. She wants to know if the best interns for her lab come from private universities or public universities. Dr. Saroyan creates two matched groups of potential interns. She matches the interns on board scores, gender, and GPA. The only difference between the two groups is whether they went to school at a private university or a public university. Dr. Saroyan has all the interns examine the same cases and scores them on how well they do at determining the cause of death.

Here Dr. Saroyan creates two matched groups of potential interns.

if we have two matched groups in the data set then we will use the related sample t-test.

Answer:- Related samples t-test

3)

Joanna Gaines has a daughter (Alex) in the 8th grade. Her daughter’s class just recently finished taking a national achievement test. Joanna thinks that her daughter’s class is better than the 8th-grade class at the school across town. Joanna asks the school to compare the scores from the two classes to each other.

Joanna thinks that her daughter’s class is better than the 8th-grade class at the school across town.

Here we want to compare the sample mean(Joanna Gaines has a daughter (Alex) in the 8th-grade score) is equal or not to the population mean(score of 8th-grade class at the school across town)

So we want to test if mean is equal to a specific value or not.

so here we will use the one-sample t-test.

Answer:-

One sample t-test

4)

Garrett, Cody, Tyler, Coby, and Cory are interested in the effect of morphine on the amount of pain reported by sports injury patients. These “dudes” randomly assign the sports injury patients to one of three groups (morphine, half the normal dose of morphine, or a normal dose of morphine) and then has each of the 3 groups rate the amount of pain they experience.

Here we have 3 treatments( morphine, half the normal dose of morphine, or a normal dose of morphine)

& we want to test that the mean pain for 3 groups is different or not.

So here to compare more than 2 groups we will use ANOVA.

Answer:- ANOVA