About the part of two independent samples test in 2 sample hypothesis testing, why need to...
Homework Answers
You necessarily don't have to.
We assume sigma1 = sigma2 if one sigma is less than twice of the other.
For example:
If sigma1 = 2, sigma2 = 3.5
Since sigma2 < 4, we can assume that sigma1 = sigma2.
For example:
If sigma1 = 2, sigma2 = 4.5
Since sigma2 > 4, we cannot assume that sigma1 = sigma2.
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About the part of two independent samples test in 2 sample
hypothesis testing, why need to...
what is the hypothesis for one-sample t test, dependent samples t test, independent samples t test.
what is the hypothesis for one-sample t test, dependent samples t test, independent samples t test.
Consider the following hypothesis test. The following results are for two independent samples taken from the...
Consider the following hypothesis test. The following results are for two independent samples taken from the two populations. Sample 2 n2=70 X 2 106 7.6 Sample 1 1-104 7 1 -8.4 a. What is the value of the test statistic? If required enter negative values as negative numbers (to 2 decimals). b. What is the p-value (to 4 decimals)? Use z-table. C. With α-.05, what is your hypothesis testing conclusion? Select Icon Key
Right side Hypothesis Testing 03 (two independent samples 3. Two different formulations of ormulations of an...
Right side Hypothesis Testing 03 (two independent samples 3. Two different formulations of ormulations of an Oxygenated motor fuel are being tested to study their road Varance of road octane number for formulation 1. 1.5 and for forma sample of size n = 15 and n = 20 are tested, and the mean road octane 12 = 92.5. Assume Normality. motor fuel are being tested to study their road octane numbers. The 1.5 and for formulation 2 It is of...
Right side Hypothesis Testing 03 (two independent samples 3. Two different formulations of ormulations of an...
Right side Hypothesis Testing 03 (two independent samples 3. Two different formulations of ormulations of an Oxygenated motor fuel are being tested to study their road Varance of road octane number for formulation 1. 1.5 and for forma sample of size n = 15 and n = 20 are tested, and the mean road octane 12 = 92.5. Assume Normality. motor fuel are being tested to study their road octane numbers. The 1.5 and for formulation 2 It is of...
Consider the following hypothesis test Но The following results are for two independent samples taken from...
Consider the following hypothesis test Но The following results are for two independent samples taken from the two populations Sample 1 Sample 2 1 25.8 22.5 a. What is the value of the test statistic (round to 2 decimals)? 2.89 b. What is the p-value (round to 4 decimals)? Use z-value rounded to 2 decimal places. c. with α-0.05, what is your hypothesis testing conclusion? p-value is- Select your answer- Hide Feedback Partially Correct
For each example, state whether the one-sample, the two-independent-sample, or the related samples t-test is most...
For each example, state whether the one-sample, the two-independent-sample, or the related samples t-test is most appropriate. If it is a related samples t-test, indicate whether the test is a repeated measures design or a matched-pairs design. 1) A researcher matches right-handed and left-handed siblings to test whether right-handed siblings express greater emotional intelligence than left-handed siblings. A. one-sample t-test B. two-independent sample t-test C. related samples t-test using the repeated measures design D. related samples t-test using the matched-pairs...
When testing the difference between two population proportions using large independent random samples, the __________ test...
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6. 2.43 Consider the following hypothesis test 7.2.43 The following results are for two independent samples...
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10. If we are doing two-sample hypothesis testing with related samples of sizes n1 = 10...
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an anova hypothesis test is equivalent to conducting two sample t-test between every pair of samples....
an anova hypothesis test is equivalent to conducting two sample t-test between every pair of samples. if there are three samples, there are three pairs:1-2,1-3, 2-3. how many pairs are there when there are 4 samples?
Consider the following hypothesis test. The following results are for two independent samples taken from the two populations. Sample 2 n2=70 X 2 106 7.6 Sample 1 1-104 7 1 -8.4 a. What is the value of the test statistic? If required enter negative values as negative numbers (to 2 decimals). b. What is the p-value (to 4 decimals)? Use z-table. C. With α-.05, what is your hypothesis testing conclusion? Select Icon Key
Right side Hypothesis Testing 03 (two independent samples 3. Two different formulations of ormulations of an Oxygenated motor fuel are being tested to study their road Varance of road octane number for formulation 1. 1.5 and for forma sample of size n = 15 and n = 20 are tested, and the mean road octane 12 = 92.5. Assume Normality. motor fuel are being tested to study their road octane numbers. The 1.5 and for formulation 2 It is of...
Right side Hypothesis Testing 03 (two independent samples 3. Two different formulations of ormulations of an Oxygenated motor fuel are being tested to study their road Varance of road octane number for formulation 1. 1.5 and for forma sample of size n = 15 and n = 20 are tested, and the mean road octane 12 = 92.5. Assume Normality. motor fuel are being tested to study their road octane numbers. The 1.5 and for formulation 2 It is of...
Consider the following hypothesis test Но The following results are for two independent samples taken from the two populations Sample 1 Sample 2 1 25.8 22.5 a. What is the value of the test statistic (round to 2 decimals)? 2.89 b. What is the p-value (round to 4 decimals)? Use z-value rounded to 2 decimal places. c. with α-0.05, what is your hypothesis testing conclusion? p-value is- Select your answer- Hide Feedback Partially Correct
6. 2.43 Consider the following hypothesis test 7.2.43 The following results are for two independent samples taken from two populations. Excel File: data10-03.xlsx Sample 1 Sample 2 n, 80 104 o 8.4 n 70 2 106 7.6 Enter negative values as negative numbers a. What is the value of the test statistic? (to 2 decimals) 1.53 b. What is the p-value? (to 4 decimals) 0630 c. With a-0.05, what is your hypothesis testing conclusion? Do not reject the null hypothesis...
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