Module 12- t-test quiz and answers rated
A+ 2025
Families at risk of poor nutrition are randomly assigned to either receive or not
receive training in home-gardening to grow vegetables. It is hypothesized that
families who receive the training will provide more nutritious meals to their
children in comparison to families who did not receive the training. - correct
answer ✔one-tailed, independent t-test
In a consumer science lab, investigators want to determine whether the size
of a serving bowl will cause people to eat more popcorn. Volunteer
participants are asked to visit the lab on two separate days, being given a
large bowl of popcorn on one day, and a smaller bowl on another day. Each
day, after the participant leaves, the amount of popcorn consumed is
measured. It is expected that when the research participants receive the
larger bowl they will eat more popcorn. - correct answer ✔one-tailed, paired
(dependent) t-test
Patients with neck pain are randomly assigned to receive either an extra soft
pillow or an extra firm pillow. It is expected that there will be less neck pain
among the participants using the firm pillowin comparison to the group using
the soft pillow. - correct answer ✔one-tailed, independent t-test
We assign students to each use the "Cornell" note-taking method on some
days and the "Charting" note-taking method on other days, and then examine
test scores to find out whether students did better while using either one of the
methods. Which of the following is a correct match? - correct answer ✔the
dependent variable is test scores
A group of grade school children are tested on their math skills both after
completing a music lesson and after completing an art project. Based on a
theoretical model, math skills are expected to be superior after completing the
music lesson. If the mean on math scores is 88% after the music lesson, and
A+ 2025
Families at risk of poor nutrition are randomly assigned to either receive or not
receive training in home-gardening to grow vegetables. It is hypothesized that
families who receive the training will provide more nutritious meals to their
children in comparison to families who did not receive the training. - correct
answer ✔one-tailed, independent t-test
In a consumer science lab, investigators want to determine whether the size
of a serving bowl will cause people to eat more popcorn. Volunteer
participants are asked to visit the lab on two separate days, being given a
large bowl of popcorn on one day, and a smaller bowl on another day. Each
day, after the participant leaves, the amount of popcorn consumed is
measured. It is expected that when the research participants receive the
larger bowl they will eat more popcorn. - correct answer ✔one-tailed, paired
(dependent) t-test
Patients with neck pain are randomly assigned to receive either an extra soft
pillow or an extra firm pillow. It is expected that there will be less neck pain
among the participants using the firm pillowin comparison to the group using
the soft pillow. - correct answer ✔one-tailed, independent t-test
We assign students to each use the "Cornell" note-taking method on some
days and the "Charting" note-taking method on other days, and then examine
test scores to find out whether students did better while using either one of the
methods. Which of the following is a correct match? - correct answer ✔the
dependent variable is test scores
A group of grade school children are tested on their math skills both after
completing a music lesson and after completing an art project. Based on a
theoretical model, math skills are expected to be superior after completing the
music lesson. If the mean on math scores is 88% after the music lesson, and
