(a) z 0.81 for a right tail test for a difference in two proportions Round your answer to two decimal places. p-value the absolute tolerance is +/-0.01 SHOW HINT LINK TO TEXT (b) Z =-2.46 for a left tail test for a difference in two means Round your answer to three decimal places. p-value- the absolute tolerance is +/-0.001
please help.. respond to the following in at least 175 words. The difference between a one tail and a two tailed test. The importance of stating the null and alternative hypotheses before conducting the test. The importance of a type one error (p) in conducting the test The relationship between the p value and our decision to accept or reject the null hypothesis
In a two-tail test for the population mean, if we decided in favor of the alternative hypothesis when the null hypothesis is false, A. a Type II error is made B. a one-tail test should be used instead of a two-tail test C. a correct decision is made D. a Type I error is made In a one-tail test for the population mean, if we decide in favor of the null hypothesis when the alternative hypothesis is true, A. a...
1- Explain how you would test the hypotheses for paired difference between the means of two populations. Give an example. 2- Explain how the proportions for two populations are used in hypotheses testing about two population proportions. Give an example. Note: type it if possible.
Part 1) The critical value of t at a .01 level in a one-tail test will equal the critical value of t for a two-tail test at what level of significance? .05 .10 .20 None of these Part 2) The critical value of t at a .05 level in a two-tail test will equal the critical value of t for a one-tail test at what level of significance? .025 .10 .20 None of these
1. When do we use a chi-square test ? Explain with a help of some examples, the difference between a right-tail, a left-tail and a two-tail chi-square test. 1.1 11. Ce
11. Flipping coins: We flipped 40 coins, and observations are obtained as 25 Head and 15 Tail. Please test the variance to find out if there is a significant difference between the observation and expected value at 95% confidence level. [10 points] 11. Flipping coins: We flipped 40 coins, and observations are obtained as 25 Head and 15 Tail. Please test the variance to find out if there is a significant difference between the observation and expected value at 95%...
Explain two - way ANOVA. What is the statistical information difference between this and a one way ANOVA.
QUESTION 2 Which of the following is TRUE? The p-value for a two tail test is less than the p-value for the corresponding one tail test. The calculated p-value should be divided by 2 to make the decision for a two tail test. The calculated p-value should be compared with the selected level of significance divided by 2 (a/2) to make the decision for a two tail test. O None of the above.
Can someone tell me the definition of tukey's and duncan's test? and what is the difference between tukey's and duncan test? and when do I perform each test?