1. Why would a researcher need to use a two-tailed test vs. a one-tailed test? 2.A...

1. Why would a researcher need to use a two-tailed test vs. a one-tailed test?

2.A scholar tests the following hypothesis: Females have a greater number of delinquent peers than males. In her test, she calculates a t value is -2.349. Why would it be unnecessary to compare this test statistic to a critical t value?

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milcah answered 1 year ago

4. Why would a researcher test a one-tailed vs. a two-tailed hypothesis? 5. Why would it...

4. Why would a researcher test a one-tailed vs. a two-tailed hypothesis? 5. Why would it be impossible for a researcher to test the following hypothesis using a t-test? H1: Female homicide offenders are more likely to be sentenced to maximum security prison than male homicide offenders. 6. If the null hypothesis in a t-test for two samples is not rejected, what conclusion can be drawn about the two means of the categorical variable? 7. Two groups of subjects participated...

a) How can we decide if we need to use a one-tailed or two-tailed test when...

a) How can we decide if we need to use a one-tailed or two-tailed test when conducting our analyses? b) What are the differences between the two? c) Why do we need to make the choice between a one-tailed or a two-tailed test? Discuss types of research where using the t statistic may be an appropriate alternative to using a z-score

Briefly describe a one-tailed vs two-tailed t-test in the context of hypothesis testing?

In most research situations, we use a two-tailed test instead of a one-tailed test (even in...

In most research situations, we use a two-tailed test instead of a one-tailed test (even in the case of a directional hypothesis). Why?

When do you use a one-tailed test? When do you use a two-tailed test? How is...

When do you use a one-tailed test? When do you use a two-tailed test? How is SPSS used to perform the calculations needed for each?

whats the difference between a one-tailed and two-tailed experiment? when would i run a one-tail test...

whats the difference between a one-tailed and two-tailed experiment? when would i run a one-tail test and when would i run a two-tail? can you give an example?

1.)Write the hypotheses in symbolic form, determine if the test is right-tailed, left-tailed, or two tailed and explain why.

The sample data is shown below, where x1 represents the mean blood pressure of the treatment group and x2 represents the mean for the control group. Use a significance level of 0.01 and the critical value method to test the claim that the drug reduces the blood pressure. We do not know the values of the population standard deviations. Treatment Group Control Group n1 80 n2 70 x ?_1 186.7 x ?_2 201.9 s1 38.5 s2 39.8 1.)Write the...

Describe the difference between a one tailed and a two tailed test. What is the difference...

Describe the difference between a one tailed and a two tailed test. What is the difference between a z test and a t test, and how do you determine which one to use? Also, discuss when a two sample test would be used, and provide an example.

Describe the difference between a one tailed and a two tailed test. What is the difference...

Describe the difference between a one tailed and a two tailed test. What is the difference between a z test and a t test, and how do you determine which one to use? Also, discuss when a two sample test would be used, and provide an example.

Q1. Define/outline the following: a. the difference between a ‘one-tailed test’ and a ‘two-tailed test’. b....

Q1. Define/outline the following: a. the difference between a ‘one-tailed test’ and a ‘two-tailed test’. b. the importance of sample size in the context of OLS regression. *c. four different types of data structures and discuss their potential usefulness and application in finance. d. the OLS assumptions e. Correlation is not causation. Briefly discuss. (c. is the part I'm confused most about)

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1. Why would a researcher need to use a two-tailed test vs. a one-tailed test? 2.A...

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4. Why would a researcher test a one-tailed vs. a two-tailed hypothesis? 5. Why would it...

a) How can we decide if we need to use a one-tailed or two-tailed test when...

Briefly describe a one-tailed vs two-tailed t-test in the context of hypothesis testing?

In most research situations, we use a two-tailed test instead of a one-tailed test (even in...

When do you use a one-tailed test? When do you use a two-tailed test? How is...

whats the difference between a one-tailed and two-tailed experiment? when would i run a one-tail test...

1.)Write the hypotheses in symbolic form, determine if the test is right-tailed, left-tailed, or two tailed and explain why.

Describe the difference between a one tailed and a two tailed test. What is the difference...

Describe the difference between a one tailed and a two tailed test. What is the difference...

Q1. Define/outline the following: a. the difference between a ‘one-tailed test’ and a ‘two-tailed test’. b....