Question

Which of the following is not an assumption underlying the independent-measures t formula for hypothesis testing?...

  1. Which of the following is not an assumption underlying the independent-measures t formula for hypothesis testing?

    The observations within each sample must be independent.

    The two populations from which the samples are selected must be normal.

    The two samples must have equal sample sizes.

    The two populations from which the samples are selected must have equal variances.
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Solution:

The correct answer is:

The two samples must have equal sample sizes.

Explanation:

The assumptions underlying the independent-measures t formula for hypothesis testing are:

a. The observations within each sample must be independent.

b. The two populations from which the samples are selected must be normal.

c. The two populations from which the samples are selected must have equal variances.

Therefore, the two samples must have equal sample sizes is not the assumption for the independent-measures t formula. They can have unequal sample size in each group.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. Which effect size measure should be used if the researcher wants to understand how much...
1. Which effect size measure should be used if the researcher wants to understand how much variability is explained by the treatment? Cohen's d any of these r-squared a confidence interval 2. Which of the follow is NOT an assumption of the independent samples t-test? Group of answer choices The observations within each sample must be independent The populations from which the samples are drawn must be normal The populations from which the samples are drawn must have equal variances...
26. Consider the following statements. (i). If we are testing for the difference between two population...
26. Consider the following statements. (i). If we are testing for the difference between two population means, it is assumed that the sample observations from one population are independent of the sample observations from the other population. (ii). If we are testing for the difference between two population means, it is assumed that the two populations are approximately normal and have equal variances. (iii). The critical value of t for a two-tail test of the difference of two means, a...
ANOVA test questions A) There are five basic assumptions that must be fulfilled in order to...
ANOVA test questions A) There are five basic assumptions that must be fulfilled in order to perform a one-way ANOVA test. What are they? Write one assumption. (from the following) Each population from which a sample is taken is assumed to be uniform. Each sample is assumed to be uniform.     Each population from which a sample is taken is assumed to be normal. Each sample is assumed to be normal. B) There are five basic assumptions that must be fulfilled...
T F 1. A p-value of .008 in hypothesis testing means there is only a .8%...
T F 1. A p-value of .008 in hypothesis testing means there is only a .8% chance we could get such sample statistics from the population if the null hypothesis is as stated. Such an event is considered unlikely and we would reject the null hypothesis. T F 2. As a general rule in hypothesis testing, it is always safer to set up your alternate hypothesis with a greater-than or less-than orientation. _____3. If the level of significance is .02...
Consider the following statements. (i) The samples must be independent. (ii) The population variances must be...
Consider the following statements. (i) The samples must be independent. (ii) The population variances must be equal. (iii) The populations must follow an F-distribution. Determine if each of the following is an assumption of analysis of variance (1) or is not an assumption of analysis of variance (2)?
1) A researcher is running an experiment on the effectiveness of three different energy drinks. She...
1) A researcher is running an experiment on the effectiveness of three different energy drinks. She randomly selects 60 individuals from the population and evenly splits them into three groups, each of which consumes a different energy drink. a. The null hypothesis for this test is that at least one of the three groups will be different. True or False? The statistical results of the test are as follows: F(2, 47) = 6.24, p < .05. b. In the above...
What conditions are necessary in order to use the dependent samples t​-test for the mean of...
What conditions are necessary in order to use the dependent samples t​-test for the mean of the difference of two​ populations? Choose the correct answer below. A. Each sample must be randomly selected from any population and the two samples must be independent. B. Each sample must be randomly selected from any population and each member of the first sample must be paired with a member of the second sample. C. Each sample must be randomly selected from a normal...
The alternative hypothesis (H1) for an independent measures study states the 2 samples come from populations...
The alternative hypothesis (H1) for an independent measures study states the 2 samples come from populations that have different means. True False
Two random samples are selected from two independent populations. A summary of the samples sizes, sample...
Two random samples are selected from two independent populations. A summary of the samples sizes, sample means, and sample standard deviations is given below: n1=39,n2=40,x¯1=50.3,x¯2=73.8,s1=6s2=6.1 Find a 98% confidence interval for the difference μ1−μ2 of the population means, assuming equal population variances.
49. Which analysis should the experimenter conduct to test the hypothesis? Z test Repeated Measures T...
49. Which analysis should the experimenter conduct to test the hypothesis? Z test Repeated Measures T test Single Sample T test Independent samples T test
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT