Question

In: Statistics and Probability

To conduct a two-sample test of hypothesis with independent samples, what must be true? a) The...

To conduct a two-sample test of hypothesis with independent samples, what must be true? a) The sample size from each population must be the same. b) The members in both populations must be related. c) The populations must come from different geographic areas. d) Both samples must measure the same parameter (wages, age, preference, etc.) from their respective populations.

Solutions

Expert Solution

Solution:

Given question is: To conduct a two-sample test of hypothesis with independent samples, what must be true?

For two-sample test of hypothesis with independent samples, we must have two independent population and corresponding samples, that is two samples should not be dependent or members of one group should not be related to members of other group. Also samples are independent , so sample size in both sample can be different.

Thus option a and b are incorrect or false regarding  two-sample test of hypothesis with independent samples.

For  two-sample test of hypothesis with independent samples, we can collect two independent samples from same geographic areas, so option c) is also not true.

For  two-sample test of hypothesis with independent samples, we must measure same kind of parameter and same kind variable in both samples.

For example: In case of comparing mean marks of Male students and Female students, we have two independent samples of Male and Female. But we are using same parameter Mean marks of both samples.

Thus correct option or true statement regarding, "To conduct a two-sample test of hypothesis with independent samples", is:

d) Both samples must measure the same parameter (wages, age, preference, etc.) from their respective populations.


Related Solutions

To conduct a two-sample test of hypothesis with independent samples, what must be true? a) The...
To conduct a two-sample test of hypothesis with independent samples, what must be true? a) The sample size from each population must be the same. b) The members in both populations must be related. c) The populations must come from different geographic areas. d) Both samples must measure the same parameter (wages, age, preference, etc.) from their respective populations.
Assignment #3: Independent Samples T test Conduct an Independent Samples T test to answer the questions...
Assignment #3: Independent Samples T test Conduct an Independent Samples T test to answer the questions based on the following scenario. (Assume a non-directional research hypothesis (two-tailed test) and a level of significance of .05) The superintendent who collected data for Assignments 1 and 2, continued to examine the district’s data. One question that concerned the superintendent’s constituencies was the difference between the school performance scores of the superintendent’s district and a neighboring district that had similar demographic and socio-economic...
Assignment #3: Independent Samples T test Conduct an Independent Samples T test to answer the questions...
Assignment #3: Independent Samples T test Conduct an Independent Samples T test to answer the questions based on the following scenario. (Assume a non-directional research hypothesis (two-tailed test) and a level of significance of .05) The superintendent who collected data for Assignments 1 and 2, continued to examine the district’s data. One question that concerned the superintendent’s constituencies was the difference between the school performance scores of the superintendent’s district and a neighboring district that had similar demographic and socio-economic...
Describe how you would conduct a two-sample hypothesis test. Select the variables (dependent and independent),and briefly...
Describe how you would conduct a two-sample hypothesis test. Select the variables (dependent and independent),and briefly set up the test. Include any ethical issues you might run across as you begin to collect your data. answer the all parts of question like it says!!! do not plagiarize!!!! answer must be a minmim of 350 words!! follow directions!!!
5. TWO (INDEPENDENT) SAMPLE T-TEST (a) Describe the independent samples t-test for two means briefly. How...
5. TWO (INDEPENDENT) SAMPLE T-TEST (a) Describe the independent samples t-test for two means briefly. How does it do it? (b) State the null and the alternative hypothesis. (c) State the assumptions. (d) State the formula for the test statistic. (e) State the rejection rule with (How to reject the null hypothesis) (f) Give an real life example of how we can use the independent samples t-test for two means.
TWO (INDEPENDENT) SAMPLE T-TEST (a)Describe the independent samples t-test for two means briefly. How does it...
TWO (INDEPENDENT) SAMPLE T-TEST (a)Describe the independent samples t-test for two means briefly. How does it do it? (b) State the null and the alternative hypothesis. (c) State the assumptions. (d) State the formula for the test statistic. (e) State the rejection rule with (How to reject the null hypothesis) (f) Give an real life example of how we can use the independent samples t-test for two means.
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...
CH10. 1. Consider the following hypothesis test. The following results are for two independent samples taken...
CH10. 1. Consider the following hypothesis test. The following results are for two independent samples taken from the two populations. Sample 1 Sample 2 n 1 = 80 n 2 = 70 x 1 = 104 x 2 = 106 σ 1 = 8.4 σ 2 = 7.6 What is the value of the test statistic? If required enter negative values as negative numbers (to 2 decimals). What is the p-value (to 4 decimals)? Use z-table. 2. The USA Today...
1. Hypothesis Test for Two Population Means, Independent Samples, Population Variances Unknown and Not Assumed to...
1. Hypothesis Test for Two Population Means, Independent Samples, Population Variances Unknown and Not Assumed to be Equal (5 points) Group Statistics Specialty N Mean Std. Deviation Std. Error Mean Enrollment Research 17 596.235 163.2362 39.5906 Primary Care 16 481.500 179.3957 44.8489 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means F Sig. t df Sig. (2-tailed) Mean Difference Std. Error Difference 90% Confidence Interval of the Difference Lower Upper Enrollment Equal variances assumed .077...
Two sample Independent t-test You want to test your hypothesis below: There is a difference in...
Two sample Independent t-test You want to test your hypothesis below: There is a difference in developing skills by practice methods: Distributed practice vs. Massed practice.             Provide your answers in the template below the data set. distributed practice massed practice 17 19 18 20 16 22 18 24 12 10 20 25 18 20 20 22 20 21 22 23 20 20 10 10 8 12 12 14 16 12 16 20 18 22 20 24 18 23 21...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT