For the following scenarios, indicate which type of t-test (either paired samples or independent samples) would...

For the following scenarios, indicate which type of t-test (either paired samples or independent samples) would be most appropriate. (8 points; 2 points each)

Determining whether children remember more details from a surprising event than college students.

Determining whether left-handed people show higher vocabulary scores than right-handed people.

Determining whether rats show differences in their spatial navigation abilities before and after consuming a high fat meal.

Determining whether a group of people has faster running speeds after drinking 1 cup of green tea than after drinking 4 cups of green tea.

Expert Solution

a. Determining whether children remember more details from a surprising event than college students.

There are two different samples as children and college students

Since these are independent samples, we need to use independent samples t-test.

b. Determining whether left-handed people show higher vocabulary scores than right-handed people.

These are also different groups and so we use independent samples t-test.

c. Determining whether rats show differences in their spatial navigation abilities before and after consuming a high fat meal.

Here data are collected on same subjects ( same rats) before the consuming and after consuming a high fat meal.

So this is a pair data (dependent data set) , so we use dependent sample t test.

d. Determining whether a group of people has faster running speeds after drinking 1 cup of green tea than after drinking 4 cups of green tea.

Here data are collected on same groups of people before and after the different type of treatments on them

So this is a pair data (dependent data set) , so we use dependent sample t test.

orchestra answered 2 years ago

2.2. Indicate which test (paired samples (ie dependent) t-test, independent two samples t-test, one-sample t-test, independent...

2.2. Indicate which test (paired samples (ie dependent) t-test, independent two samples t-test, one-sample t-test, independent samples z-test) is most appropriate for the following situations : A. Comparison of weight gain of two groups of 18 cows where one group was raised following standard practices and the other group was raised following “organic” standards. B. Comparison of scores on a fitness test of Olympic-class distance runners (n=20) with the national average score of people of a similar age range (22-31...

1. For the following experimental designs, indicate whether independent-samples or paired-samples t-test is appropriate: a) Weight...

1. For the following experimental designs, indicate whether independent-samples or paired-samples t-test is appropriate: a) Weight is obtained for each subject before and after Dr. Nogani's new treatment. The hypothesis to be tested is that the treatment has no effect on weight loss. b) Elephants are randomly selected from a jungle and Trunkgrol is administered to one group of elephants and Trunkgro2 to the other. The hypothesis to be tested is that both agents are equally effective in promoting trunk...

1. Identify which test the scenario will use: independent samples t test, paired samples t test,...

1. Identify which test the scenario will use: independent samples t test, paired samples t test, chi square test for goodness of fit, chi square test for independence or chi square test for homogeneity. A. A researcher goes to the parking lot at a large grocery chain and observes whether each person is male or female and whether they return the cart to the correct spot before Chi leaving (yes or no). B. Amber Sanchez, a statistics student, collected data...

indicate the formulas for finding the degrees of freedom for: One-sample t-test Two independent-samples t-test Paired-samples...

indicate the formulas for finding the degrees of freedom for: One-sample t-test Two independent-samples t-test Paired-samples t-test

Indicate which test (dependent samples t-test, independent samples t-test, independent samples z-test) is most appropriate for...

Indicate which test (dependent samples t-test, independent samples t-test, independent samples z-test) is most appropriate for the following situation: i. Comparison of mean recycling participation between 9 large cities and 11 small cities ii. Comparison of the weights of 16 Toronto Maple Leaf rookies at the beginning versus the end of the regular NHL season. iii. Comparison of fin length of 35 male and 37 female brook trout sampled in Spruce Lake, Nottingham Forest. iv. Comparison of the mass of...

You reject Ho for a t-test for two independent samples. Indicate which of the following are...

You reject Ho for a t-test for two independent samples. Indicate which of the following are potentially viable criticisms for your conclusion and why. If valid, how could you address the issue? a) sample size is too small b) did not use a one-tailed test c) variances differ in the two equally sized sampled groups d) variances differ where one group has many more cases e) the dependent variable is ordinal with only four possible values f) the 95% confidence...

What is the difference between the Independent Samples t-Test and Paired t-Tests?

What is the difference between a t-test for 2 independent samples vs. a paired t-test? Give...

What is the difference between a t-test for 2 independent samples vs. a paired t-test? Give an example of when a Chi-squared test would be used. How would you find the degrees of freedom (df) for one of these tests?

One-sample t-test Independent samples t-test Paired samples t-test One-way ANOVA Correlation Simple linear regression Chi-square test...

One-sample t-test Independent samples t-test Paired samples t-test One-way ANOVA Correlation Simple linear regression Chi-square test of independence/association ______ Statistical test used to compare means of a continuous variable between >2 groups ______ Statistical test used to examine whether 2 categorical variables are independent ______ Statistical test used to compare a sample mean to a population mean (when the population standard deviation is known) ______ Statistical test used to compare means of a continuous variable between 2 groups ...

Paired Samples t-TEST After you run the t-test, answer these questions (type responses in this box):...

Paired Samples t-TEST After you run the t-test, answer these questions (type responses in this box): 1. What is the p-value (the significance)? 2. Is the difference between mean score for pretest and posttest statistically significant? Paired Samples t-TEST Statistics Competency Pretest Posttest 65 85 43 99 96 90 69 87 9 65 56 66 32 73 87 99 88 90 75 80 100 80 85 99 88 89 35 90 100 88 75 89 99 90 77 89 90...

Question