Question

Asked Oct 23, 2019

a study of the effects of color on easing anxiety cpmpared anxiety test scores of prticipants who completed the test printed on either soft yellow paper or on harsh green paper.the scores for the five participants who cpmpleted the test on the green paper were 20, 26, 28, 21, and 18. the scores for four particiopants who completed the test on green paper were 20, 26, 17, and 24. using the .05 level, one-tailed (predicting lower anxiety scores for the yellow paper), what should the researcher colclude? a. use the steps of hypothesis testing

Step 1

**Note:**

In question values of scores are given for green paper only. We have considered the second set of scores for yellow and have done further calculations.

Step 2

It is assumed that samples are drawn from the normal population. The population standard deviations are unknown. Thus, we can use t- test for difference in means.

The null and alternative hypotheses are stated below:

Step 3

Step-by-step procedure to obtain the test statistic using Excel software:

- First enter the values of green and yellow score into the columns of A and B.
- Select
**Data option**. - Go to
**Data analysis**and click on**t-test of two samples with unequal variances**. - Click on
- Select the ranges of
**green and yellow.** - Choose
**hy...**

Tagged in

Q: the value used in the equation for the t-test for independent means that approximates the sample siz...

A: In order to compute the test statistic, it is appropriate to approximate the sample size by calculat...

Q: Can you answer questions (d), (e), and (f)?

A: d) Line of best of the data:The line that best fits the data is least-squares regression line.The pr...

Q: figure Sdifference for each ot the following studies (only a, b, and c)

A: a)The value of s2pooled is shown below:

Q: It is estimated that 40% of clowns like scaring children. A sample of 15 clowns are indicted. Assumi...

A: Given dataProbability that clowns like scaring children i.e. p = 0.40No of clowns i.e. n = 15probabi...

Q: In an experiment, college students were given either four quarters or a $1 bill and they could eit...

A: From the given information,

Q: The population standard deviation (σ) is necessary for conducting a ___________. A One-sample t -tes...

A: A z-test is defined as a statistical procedure that is used to determine whether the sample mean dif...

Q: Problem 17 c-d

A: For given question no.17 subpart c and d, we need to write conclusion in c-part based on p-value.

Q: Suppose that the probability that a child living in an urban area in the US is obese is 20%. A socia...

A: Given:Number of children living in an urban area (n)=10Probability(P)=0.20Explanation:Let’s x is num...

Q: If other factors are held constant, how does sample variance influence the likelihood of rejecting ...

A: It is given that r2 and cohen’s d.