One tailed Study guides, Class notes & Summaries

1/1 points A fitness center claims that the mean amount of time that a person spends at the gym per visit is 33 minutes. Identify the null hypothesis, H0, and the alternative hypothesis, Ha, in terms of the parameter μ. That is correct! H0: μ≠33; Ha: μ=33 H0: μ=33; Ha: μ≠33 H0: μ≥33; Ha: μ<33 H0: μ≤33; Ha: μ>33 Answer Explanation Correct answer: H0: μ=33; Ha: μ≠33 Let the parameter μ be used to represent the mean. The null hypothesis is always stat...

EDCO 735 Quiz 2-1 EDCO 735 Quiz 2-2 EDCO 735 Quiz 2-3. EDCO 735 Quiz 2-4 EDCO 735 Quiz 2-5 Question 1 0 / 3 pts If the nominal alpha is set to .05, what p value would not be considered statistically significant? .222 You Answered .022 .034 .033 Question 2 3 / 3 pts If the state of the world is that the null hypothesis should not be rejected and researchers fail to reject it, they have committed: Correct! no error Type I error Type II error Type III error Question 3 3 / ...

Whenever the population standard deviation is unknown and the population has a normal or near-normal distribution, which distribution is used in developing an interval estimation? - ANSWERSt-distribution If a hypothesis is not rejected at the 5% level of significance, it - ANSWERSwill also not be rejected at the 1% level A sample statistic, such as a sample mean is known as - ANSWERSa statistic The p-value is a probability that measures the support (or lack of support) for the - ANSWERS...

AP Environmental Science |APES Unit 1-9 Progress Check: MCQ’s Complete Answered 100% correctly_ Spring 2023 APES Unit 1 Progress Check: MCQ Six white-tailed deer and six sika deer were enclosed in a pasture for observation during an eight-year study in central Texas. White-tailed deer are a native species to central Texas, while sika deer are a nonnative species to central Texas. White-tailed deer feed on flowering plants and the tips of trees and shrubs but do not eat grass. Sika deer f...

STATISTICS MISC - SOPHIA STATISTICS UNIT 5 – MILESTONE 5 LATEST 2023 If we first note the denominator of Then, getting the z-score we can note it is This tells us that 36.1 is 2.83 standard deviations above the value of 36. Note that when you round some values you may get slightly different results, but the results should be relatively close to this final calculated value. CONCEPT Z-Test for Population Means 2 Emile has calculated a one-tailed z-statistic of -1.97 and wants ...

STATS Chapter 9 Study Guide Test 2024. For a given sample size and α level, the Student's t value always exceeds the z value - CORRECT ANSWER TRUE For a given level of significance, the critical value of Student's t increases as n increases - CORRECT ANSWER FALSE For a sample of nine items, the critical value of Student's t for a left-tailed test of a mean at α= .05 is -1.860 - CORRECT ANSWER TRUE Holding other factors constant, it is harder to reject the null hypothesis for a...

PSYC 515 SPSS M1 1 REVIEW SPSS WORKSHEET INSTRUCTIONS OVERVIEW This worksheet is designed to assess your ability to perform, interpret, report, and graphically represent the following statistical tests using SPSS and standard reporting conventions as covered in this course: correlations, regression, independent samples t tests, and correlated groups t tests. These are standard tests in our field and are foundational to the more sophisticated research designs. Knowledge of these tests provi...

If your obtaind z test is 109 and the critical z value is 1.96 in a two- tailed test, which of the following conclusions is correct? a. obtained z test is too big there is something wrong with the calculation b. there is a difference between your sample mean and population mean c. there is a difference between your same means d. in your calculation you need to estimate the population standard deviation using the sample standard deviation e. none of the above Answer b. there is a difference ...

PSYC 515 SPSS M1 REVIEW SPSS WORKSHEET INSTRUCTIONS Answered 2023. HOMEWORK: REVIEW SPSS WORKSHEET INSTRUCTIONS OVERVIEW This worksheet is designed to assess your ability to perform, interpret, report, and graphically represent the following statistical tests using SPSS and standard reporting conventions as covered in this course: correlations, regression, independent samples t tests, and correlated groups t tests. These are standard tests in our field and are foundational to the more sop...