Urgent exam questions

Question Description

This is a statistical class mixed with psychology. Please explain how you got your answers

Question 23. experimenter wants to know if having a pet or friend present while taking a stressful math test helps reduce anxiety. She recruits 120 people to participate in the study and each person takes a difficult math test under a strict time limit. The participants are also randomly assigned to take the test alone, with a friend in the room, or with a therapy dog in the room. After taking the test, participants completed a survey that assessed how stressful they found the test. Scores on the stress survey were measured on an interval scale and higher numbers indicated greater stress.

Which of the following facts suggests that the data independence assumption was met?

Group of answer choices

The standard deviations in the three groups are similar.

The sample sizes for each group are greater than 30.

Each participant completed the stress survey independently.

The three conditions are clearly defined and the stress survey scores arre measured on an interval scale.

Question 22. An experimenter wants to know if having a pet or friend present while taking a stressful math test helps reduce anxiety. She recruits 120 people to participate in the study and each person takes a difficult math test under a strict time limit. The participants are also randomly assigned to take the test alone, with a friend in the room, or with a therapy dog in the room. After taking the test, participants completed a survey that assessed how stressful they found the test. Scores on the stress survey were measured on an interval scale and higher numbers indicated greater stress.

Which of the following facts suggests that the homogeniety of variance assumption was met?

Group of answer choices

The sample sizes for each group are greater than 30.

The standard deviations in the three groups are similar.

The three conditions are clearly defined and the stress survey scores arre measured on an interval scale.

Each participant completed the stress survey independently.

Question 24. An experimenter wants to know if having a pet or friend present while taking a stressful math test helps reduce anxiety. She recruits 120 people to participate in the study and each person takes a difficult math test under a strict time limit. The participants are also randomly assigned to take the test alone, with a friend in the room, or with a therapy dog in the room. After taking the test, participants completed a survey that assessed how stressful they found the test. Scores on the stress survey were measured on an interval scale and higher numbers indicated greater stress.

Which of the following facts suggests that the appropriate measurement assumption was met?

Group of answer choices

The standard deviations in the three groups are similar.

The sample sizes for each group are greater than 30.

The three conditions are clearly defined and the stress survey scores are measured on an interval scale.

Each participant completed the stress survey independently.

Question 25. An experimenter wants to know if having a pet or friend present while taking a stressful math test helps reduce anxiety. She recruits 120 people to participate in the study and each person takes a difficult math test under a strict time limit. The participants are also randomly assigned to take the test alone, with a friend in the room, or with a therapy dog in the room. After taking the test, participants completed a survey that assessed how stressful they found the test. Scores on the stress survey were measured on an interval scale and higher numbers indicated greater stress.

What is the symbolic null hypothesis (H0) for this study?

Group of answer choices

LaTeX: mu_1nemu_2nemu_3 $μ$ 1 ≠ μ 2 ≠ μ 3

LaTeX: mu_1nemu_2:and/or:mu_1nemu_3:and/or:mu_2nemu_3 $μ$ 1 ≠ μ 2 a n d / o r μ 1 ≠ μ 3 a n d / o r μ 2 ≠ μ 3

LaTeX: mu_1=mu_2:and/or:mu_1=mu_3:and/or:mu_2=mu_3 $μ$ 1 = μ 2 a n d / o r μ 1 = μ 3 a n d / o r μ 2 = μ 3

LaTeX: mu_1=mu_2=mu_3 $μ$ 1 = μ 2 = μ 3

Question 26. An experimenter wants to know if having a pet or friend present while taking a stressful math test helps reduce anxiety. She recruits 120 people to participate in the study and each person takes a difficult math test under a strict time limit. The participants are also randomly assigned to take the test alone, with a friend in the room, or with a therapy dog in the room. After taking the test, participants completed a survey that assessed how stressful they found the test. Scores on the stress survey were measured on an interval scale and higher numbers indicated greater stress.

What is the verbal null hypothesis (H0) for this study?

Group of answer choices

The mean stress survey scores for all populations are not equal.

The mean stress survey scores for all populations are equal.

At least one of the populations’ mean stress survey scores is not equal to at least one of the other populations’ mean stress survey scores.

At least one of the populations’ mean stress survey scores is equal to at least one of the other populations’ mean stress survey scores.

Question 27. An experimenter wants to know if having a pet or friend present while taking a stressful math test helps reduce anxiety. She recruits 120 people to participate in the study and each person takes a difficult math test under a strict time limit. The participants are also randomly assigned to take the test alone, with a friend in the room, or with a therapy dog in the room. After taking the test, participants completed a survey that assessed how stressful they found the test. Scores on the stress survey were measured on an interval scale and higher numbers indicated greater stress.

What is the symbolic research hypothesis (H1) for this study?

Group of answer choices

LaTeX: mu_1nemu_2nemu_3 $μ$ 1 ≠ μ 2 ≠ μ 3

LaTeX: mu_1=mu_2=mu_3 $μ$ 1 = μ 2 = μ 3

LaTeX: mu_1nemu_2:and/or:mu_1nemu_3:and/or:mu_2nemu_3 $μ$ 1 ≠ μ 2 a n d / o r μ 1 ≠ μ 3 a n d / o r μ 2 ≠ μ 3

LaTeX: mu_1=mu_2:and/or:mu_1=mu_3:and/or:mu_2=mu_3

Question 29.

An experimenter wants to know if having a pet or friend present while taking a stressful math test helps reduce anxiety. She recruits 120 people to participate in the study and each person takes a difficult math test under a strict time limit. The participants are also randomly assigned to take the test alone, with a friend in the room, or with a therapy dog in the room. After taking the test, participants completed a survey that assessed how stressful they found the test. Scores on the stress survey were measured on an interval scale and higher numbers indicated greater stress.

Use the SPSS ouput below to fill in the summary table values. Report the SS, MS, F, and $η$ 2 values to 2 decimal places.

Source of Variance	SS	df	MS	F	$η$ 2
Between Treatments
Within Treatments (Error)
Total

SSbetween treatments =

dfbetween treatments =

MSbetween treatments =

F =

LaTeX: eta^2= $η$ 2 =

SSwithin treatments (error) =

dfwithin treatments (error) =

MSwithin treatments (error) =

SStotal =

dftotal =

^{"Place your order now for a similar assignment and have exceptional work written by our team of experts, guaranteeing you "A" results."}

Question Description

Format and Features

Our Advantages

Useful Links