The correct hypotheses are: H : The sample is a good fit to the Bureau of Transportation Statistics. The sample is not a good fit to the Bureau of Transportation Statistics.(claim) H: H, : The sample is not a good fit to the Bureau of Transportation Statistics. H: The sample is a good fit to the Bureau of Transportation Statistics.(claim) O Ho : The sample and the Bureau of Transportation Statistics are independent. The sample and the Bureau of Transportation HA: Statistics are dependent.(claim) H: The sample and the Bureau of Transportation Statistics are dependent. The sample and the Bureau of Transportation Statistics are independent.(claim) H: The test valun is (round to 3 decimal places) The pvalue is (round to 3 decimal places) The correct decision is to o reject H, do not reject H,

The correct hypotheses are: H : The sample is a good fit to the Bureau of Transportation Statistics. The sample is not a good fit to the Bureau of Transportation Statistics.(claim) H: H, : The sample is not a good fit to the Bureau of Transportation Statistics. H: The sample is a good fit to the Bureau of Transportation Statistics.(claim) O Ho : The sample and the Bureau of Transportation Statistics are independent. The sample and the Bureau of Transportation HA: Statistics are dependent.(claim) H: The sample and the Bureau of Transportation Statistics are dependent. The sample and the Bureau of Transportation Statistics are independent.(claim) H: The test valun is (round to 3 decimal places) The pvalue is (round to 3 decimal places) The correct decision is to o reject H, do not reject H,

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You wish to test the following claim (H) at a significance level of a = 0.05. Ho:μ = 89.6 H: 89.6, You believe the population is normally distributed and you know the standard deviation is 19.5. You obtain a sample mean of 96.5 for a sample of size 50. a) What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = b) What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = c) The p-value is... O less than (or equal to) a O greater than a d) This test statistic leads to a decision to... O reject the null O accept the null O fail to reject the null e) As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the population mean is not equal to 89,6. There is not sufficient evidence to warrant rejection of the claim that the population mean is not equal to 89.6. O The sample data support the claim that the population mean is not equal to 89.6.
In the hypothesis testing: A. What are the five steps of hypothesis testing? B. Explain the difference between type 1 and type 2 error. C. What does a p-value represent?
2.2.25 According to a Pew Research Center report from 2012, the average commute time to work in California is 27.5 minutes. To investigate whether a different average is true for the small city that she lives in, a California high school student surveys 45 people she knows-her teachers, her parents and their friends and co-workers-and finds the average commute time for this sample to be 24.33 minutes, with a standard deviation of 9.53 minutes.
Is this correct (AP statistics)
I am to do a project for an inferential statistics class and I would like some basic guidance. I am to propose a research question. My proposed research question is "Does drinking stimulants such as coffee improve a student's grades?" My population will be the students at my school. I will use a test of association hypothesis test because I will need to find an association between drinking stimulant’s such as coffee and the grades of the students. So, I will divide the students that do drink coffee before school and those who don’t and determine if there is a sizeable difference in academic success between the two groups. My question is what type of graph do you think would be best served to visually display the data?
What I Can Do Directions: Cite five (5) situations in your community where you can apply hypothesis testing. Then, just choose one situation and: 1. create a problem statement; 2. formulate the null and alternative hypothesis; 3. select the level of significance and sketch the rejection region; and 4. state the possible Type I and Type II errors.
The Bureau of Labor Statistics reports that the official unemployment rate for Black people was 10.4% and 4.7% for White people in February 2015. Select all correct answers for this question. O The samples of white and black people are independent. The explanatory variable is the unemployment rate. The response variable is the unemployment rate. The response variable is race.
I. Identify the claim in symbolic form, hypotheses in symbolic form, appropriate analysis, and the tail of the distribution for thefollowing situation. For the appropriate analysis, choose among the following choices:• t-Test for one population mean• z-Test for one population mean• t-Test for two dependent population means • z-Test for two independent population means• t-Test for two independent population mean For the tail of the distribution, choose among the following choices:• two-tailed• left-tailed• right-tailed 4. The effectiveness of the Weight Watchers diet is tested in an experiment, and for each subject, the weight before the dietand the weight after the diet are recorded.a. Claim: ___________b. Ho: _________________________Ha: _________________________c. Analysis: _________________________d. Tail of the distribution: _________________________
Which of the following claims would result in a Left tail test? O A. Claim: The average heart rate for exercisers is lower than the average heart rate for nonexercisers. B. Claim The variation in the grades of the Final Exam are different than previously (which was 2.3). O C. Claim: The proportion of people with pets is over 75%. OD. Claim: The average age of voters in Clarke County is not 45 years.
What statistical test would a researcher use to test the following research hypothesis: Individuals who report less favorable attitudes toward the police are more likely to be sentenced to higher security prisons. Attitudes measured as 1 = very favorable, 2 = somewhat favorable, 3 = somewhat not favorable, and 4 = not at all favorable. Sentences measured as 1 = minimum, 2 = medium, and 3 = maximum.
Which alternative? In each of the following situations,is the alternative hypothesis one-sided or two-sided?What are the hypotheses?a) A college dining service conducts a survey to see ifstudents prefer plastic or metal cutlery. b) In recent years, 10% of college juniors have appliedfor study abroad. The dean’s office conducts a surveyto see if that’s changed this year.c) A pharmaceutical company conducts a clinical trial tosee if more patients who take a new drug experienceheadache relief than the 22% who claimed relief aftertaking the placebo.d) At a small computer peripherals company, only 60% of the hard drives produced passed all their perfor-mance tests the first time. Management recently in-vested a lot of resources into the production system and now conducts a test to see if it helped.
Write the following five steps of hypothesis test: 1. Set a set of hypotheses 2. Determine rejection rule with a given a (Fa). 3. Compute test statistic (F-Value) 4. Make judgment 5. Interpretation with p-value Utilize excel output to conduct your answers.