Null hypothesis h0 - Study guides, Class notes & Summaries

Stats 12: Final CCLE Quizes Latest Update (2024/2025) Rated A+ When stating the null and alternative hypotheses, the hypotheses are: Select one: a. Always about the parameter only b. Always about the statistic only c. Always about both the statistic and the parameter d. Sometimes about the statistic and sometimes about the parameter a. Always about the parameter only The probability of rejecting the null hypothesis when, in fact, the null hypothesis is true is called the Select one: a. s...

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 stated with ...

In hypothesis testing, the tentative assumption about the population parameter is called - ANSWERSthe null hypothesis A fast food restaurant has automatic drink dispensers to help fill orders more quickly. When the 12 ounce button is pressed, they would like for exactly 12 ounces of beverage to be dispensed. There is, however, undoubtedly some variation in this amount. The company does not want the machine to systematically over fill or under fill the cups. Which of the following gives the co...

MATH 225N FINAL EXAM 2 – QUESTION AND ANSWERS 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 Expla...

***Download Test Bank Immediately After the Purchase. Just in case you have trouble downloading, kindly message me, and I will send it to you via Google Doc or email. Thank you*** MATH 120: INTRODUCTION TO STATISTICS LIME SPRING WEEK 7 BOOK EXAM 2023/2024/100% CORRECT ANSWERS Question 1: What is the impact of changing from the 90% confidence interval to the 99% confidence interval? • The range of values included increases. • The range of values included decreases. • The range of valu...

LSU is an ___ school; research is the main priority. LSU is a university that creates knowledge; doesn't just teach it. correct answers R1 means reviewers of research papers do not know the author, and the author does not know who the reviewers are. Best validity of information. correct answers double blind 100% increase claim; but the company went from 1 customer in the first quarter to 2 in the other leads to screwy statistics. But, if the company went from one warehouse to 2 in the nex...

Mathematically, the power of an experiment is - the probability that the results of an experiment will allow rejection of the null hypothesis if the independent variable has a real effect. As the power of an experiment increases, the probability of making a Type II error ___________________. - decreases The hypothesis that claims the difference in results between conditions is due to the independent variable is the - alternative hypothesis This error is defined as a decision to retain the ...

You conduct a z test using an alpha level of .05two-tail (zcrit = ± 1.96). The value of zobt = -1.5. Do you reject or retain the null hypothesis? - Retain the null hypothesis Mathematically, the power of an experiment is - the probability that the results of an experiment will allow rejection of the null hypothesis if the independent variable has a real effect. You conduct a sign test and find that the calculated probability is .067. You are using an alpha level of .05two-tailed. Given thi...

null hypothesis (H0) - the statistical hypothesis tested by the statistical procedure; usually a hypothesis of no difference or no relationship Interquartile Range (IQR) - the difference between the first and third quartiles (middle 50% of observations) dichotomous measure - describes the presence or absence of an attribute (ex smoker/nonsmoker) nominal data - categories that vary with no natural order (ex blood types) ordinal data - categories with natural order but without clear units (e...