I need these answrs ASAP please Question 1 Identify which ty

I need these answrs ASAP please.

Question 1:

.Identify which type of test the researcher most likely used when completing each study described below (2 points; each of these is used at least once).

A.Independent Samples t-test

B.Related Samples t-test/Repeated-measures

C.Z-test, Or

D.This type of study does not describe any of these three tests

______The average person flosses, on average, two times per week (with a standard error of 1.23 times). Marshall wants to know if individuals floss more often if they leave sticky notes on their bathroom mirror. One sample of thirty individuals were randomly selected and asked to place a reminder note to floss on their bathroom mirror for one month. The individuals in the sample reported that on average, they flossed their teeth 4 times each week during that month when they had the sticky note on their bathroom mirror.

______Tasha believes that participating in mindfulness meditation helps people feel more confident long-term. She randomly selected 6 adults and measured their self-reported confidence. They then participated in an 8 week mindfulness meditation program, and a month later, they were given the same confidence test. On average, the adults scored a 6.5 on the confidence test after having participated in the meditation program.

______I wanted to find out if there was any difference in depression between Purdue University students and the average college student. Twenty-five college students from Purdue University were assessed for how depressed they were using the Beck Depression Inventory. Higher scores mean a higher level of depression. The students scored an average of a 21 on the inventory. The national average for college students is a score of a 23, and the standard deviation of the population is

3. ______Gabriel wanted to find out if a controversial method of teaching (Method X) had an affect on the performance of children on IQ tests. In this study, a group consisting of 10 children was taught with Method X. A second group of 15 children were taught using a standard method of teaching. The children who received Method X scored and average of 103.5, and the children who received the standard method scored an average of 107.5.

Question 2:

.A researcher was interested in the effect of wearing bright clothing on the competency rating of job interviewers. Two groups of n=10 interviewers were asked to rate how competent they believed their interviewee was after a 15 minute interview. For each of the interviewers, all the information presented was the same. The only difference was whether they were wearing bright clothes or dark clothes. The interviewers gave the individuals wearing bright clothes an average competence rating of M = 8.9 out of 10 with an estimated standard error of 1.56 points, and gave the individuals wearing dark clothing an average competency rating of M = 6.4 out of 10 with an estimated standard error of 2.04 points. After analyses were completed, researchers obtained a sample statistic of t = 1.98. Is there any significant difference in competency ratings for individuals based on the brightness of their clothing? Note: a related samples t-test was done. (Do not just answer yes or no; show steps 1, 2, and 4. Step 3 is done for you.

Solution

The average person flosses, on average, two times per week (with a standard error of 1.23 times). Marshall wants to know if individuals floss more often if they leave sticky notes on their bathroom mirror. One sample of thirty individuals were randomly selected and asked to place a reminder note to floss on their bathroom mirror for one month. The individuals in the sample reported that on average, they flossed their teeth 4 times each week during that month when they had the sticky note on their bathroom mirror.

Z TEST

Tasha believes that participating in mindfulness meditation helps people feel more confident long-term. She randomly selected 6 adults and measured their self-reported confidence. They then participated in an 8 week mindfulness meditation program, and a month later, they were given the same confidence test. On average, the adults scored a 6.5 on the confidence test after having participated in the meditation program.

INDEPDENT SAMPLE T TEST

I wanted to find out if there was any difference in depression between Purdue University students and the average college student. Twenty-five college students from Purdue University were assessed for how depressed they were using the Beck Depression Inventory. Higher scores mean a higher level of depression. The students scored an average of a 21 on the inventory. The national average for college students is a score of a 23, and the standard deviation of the population is

Z TEST