An alternative hypothesis in a one-sample Z-test could state which of the following: Group of answer...
An alternative hypothesis in a one-sample Z-test could state which of the following:
Group of answer choices
(A) The mean of sample 1 is greater than the mean of sample 2.
(B)The mean of sample 1 is equal to the mean of sample 2.
(C)The sample mean is greater than the population mean.
(D)The sample mean is equal to the population mean.
Homework Answers
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An alternative hypothesis in a one-sample Z-test could state
which of the following:
Group of answer...
State which hypothesis test would be appropriate under the following conditions. Our data set’s mean is...
State which hypothesis test would be appropriate under the following conditions. Our data set’s mean is being compared to a fixed or assumed value. The data set comes from a population that has a normal distribution and we know the population standard deviation. Group of answer choices 1--- z-test 2---- Mann-Whitney U Test 3----- 2-sample t-test with unequal variances 4--- t-test 5---- 2-sample t-test with equal variances I just need to know which of the 5 is the right answer....
Important instructions: For all situations requiring a hypothesis test (z test, one-sample t test, one-sample vari...
Important instructions: For all situations requiring a hypothesis test (z test, one-sample t test, one-sample variance test or two-sample t test), you must 1. Choose the appropriate test based on the information you are given 2. State null and alternative hypotheses 3. Choose a one or two tailed test and explain why you chose that test 4. Calculate the appropriate test statistic, showing all work neatly. This includes calculations of means, standard deviations, etc. 5. Draw the appropriate conclusions (i.e.,...
1) Timothy has finished calculating a z-test. Now he turns to the table of z-scores to...
1) Timothy has finished calculating a z-test. Now he turns to the table of z-scores to find the: a) Critical value b) Test value c) calculated value d) obtained value 2) Joyce has calculated a Z-test with an alpha set to .05. She calculates a z-value of 6.36. What can she conclude? a) none of these b) reject the null hypothesis c) fail to reject the null hypothesis d) the result is too close to call 3) In order to...
Which of the following would be an appropriate alternative hypothesis? Question 1 options: 1) The mean...
Which of the following would be an appropriate alternative hypothesis? Question 1 options: 1) The mean of a sample is greater than 55. 2) The mean of a population is greater than 55. 3) The mean of a population is equal to 55. 4) The mean of a sample is equal to 55.
5/quizzes/208414/take Maps The P-value picture for a One-Sample Hypothesis Test is given below, use it to...
5/quizzes/208414/take Maps The P-value picture for a One-Sample Hypothesis Test is given below, use it to answer the following question: Which alternative hypothesis does the picture correspond to? P-value Picture XP-value area 2000 3000 The center of the curve is at 3000. 2020 Radna Bos, Florida State University Department of Statistics Ha: The population mean is greater than 2000. Ha: The population mean is not equal to 2000. Ha: The population mean is not less than 2000, Ha: The population...
5. Which of the following would be an appropriate Alternative Hypothesis? A) The mean of a...
5. Which of the following would be an appropriate Alternative Hypothesis? A) The mean of a population is equal to 60 B) The mean of a sample is equal to 60 C) The mean of a population is not equal to 60 D) The mean of a sample is not equal to 60 E) All of the above 6. Which of the following statements about the level of significance in a hypothesis test is true? A) The larger the level...
Question Which of the following is true about the one sample z-test and one sample t-test:...
Question Which of the following is true about the one sample z-test and one sample t-test: A. for a t-test, the population mean and standard deviation are needed for a t-test only the sample mean is needed. for a z-test the population mean and standard deviation are needed. The z and t-tests are identical except for the size of the sample used. The z and t-tests are identical in terms of the amount of information needed. B. C. D. E....
1. You want to test whether you can reject the null hypothesis that a population mean...
1. You want to test whether you can reject the null hypothesis that a population mean is greater than or equal to 10. To do this, you collect a random sample of size 500 from the population, and you calculate that the sample mean and sample standard deviation are 8.6 and s, respectively. Which of the following is true? a. If s is any value between 11 and 13, you can reject the null hypothesis at the 5% significance level....
A one-sample z-test for a population mean is performed. Suppose that the P-value for the test...
A one-sample z-test for a population mean is performed. Suppose that the P-value for the test is 0.04. For what significance levels (values of a) can the null hypothesis be rejected? For a = 0.04 For all values of a greater than or equal to 0.04 For a = 0.05, 0.10 For all values of a smaller than 0.04
Which of the following statements about the Null Hypothesis Decision Strategy is false? Group of answer...
Which of the following statements about the Null Hypothesis Decision Strategy is false? Group of answer choices As a last step, we state whether our scientific hypothesis is actually true or not The logic of NHDS is much the same for all research scenarios except for when we have categorical response variables Confidence in our conclusions about our population of interest is greater when we are able to obtain a random as opposed to a nonrandom sample from that population...
Important instructions: For all situations requiring a hypothesis test (z test, one-sample t test, one-sample variance test or two-sample t test), you must 1. Choose the appropriate test based on the information you are given 2. State null and alternative hypotheses 3. Choose a one or two tailed test and explain why you chose that test 4. Calculate the appropriate test statistic, showing all work neatly. This includes calculations of means, standard deviations, etc. 5. Draw the appropriate conclusions (i.e.,...
5/quizzes/208414/take Maps The P-value picture for a One-Sample Hypothesis Test is given below, use it to answer the following question: Which alternative hypothesis does the picture correspond to? P-value Picture XP-value area 2000 3000 The center of the curve is at 3000. 2020 Radna Bos, Florida State University Department of Statistics Ha: The population mean is greater than 2000. Ha: The population mean is not equal to 2000. Ha: The population mean is not less than 2000, Ha: The population...
5. Which of the following would be an appropriate Alternative Hypothesis? A) The mean of a population is equal to 60 B) The mean of a sample is equal to 60 C) The mean of a population is not equal to 60 D) The mean of a sample is not equal to 60 E) All of the above 6. Which of the following statements about the level of significance in a hypothesis test is true? A) The larger the level...
Question Which of the following is true about the one sample z-test and one sample t-test: A. for a t-test, the population mean and standard deviation are needed for a t-test only the sample mean is needed. for a z-test the population mean and standard deviation are needed. The z and t-tests are identical except for the size of the sample used. The z and t-tests are identical in terms of the amount of information needed. B. C. D. E....
A one-sample z-test for a population mean is performed. Suppose that the P-value for the test is 0.04. For what significance levels (values of a) can the null hypothesis be rejected? For a = 0.04 For all values of a greater than or equal to 0.04 For a = 0.05, 0.10 For all values of a smaller than 0.04
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