in this excerise we ar conducting many hypothesis tests to test a clai. assume that the null hypothesis is true. if 1100 tests are conducted using a signifance level of 5. approxmately how many of the test will incorrectly signifincance

in this excerise we ar conducting many hypothesis tests to test a clai. assume that the null hypothesis is true. if 1100 tests are conducted using a signifance level of 5. approxmately how many of the test will incorrectly signifincance

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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A local chess club claims that the length of time to play a game has a mean of less than 59 minutes. Write sentences describing type I and type II errors for a hypothesis test of this claim. A type I error will occur if the actual mean of the length of time to play a game is minutes, but you the null hypothesis, A type II error will occur if the actual mean of the length of time to play a game is minutes, but you the null hypothesis, 59 59
For a one-tailed hypothesis test (upper tail) the p-value is computed to be 0.037. If the test is being conducted at 99% confidence, the null hypothesis could be rejected or not rejected depending on the sample size could be rejected or not rejected depending on the value of the mean of the sample is not rejected is rejected
A researcher is investigating US resident’s natural disaster preparedness. The researcher wants to test if less than 40% of US residents have a “natural disaster emergency plan”. To test this, the researcher selected a sample of 1000 US residents. Each sample member was asked if they have a “natural disaster emergency plan”. Of the 1000 samples, 371 responded that they did have a “natural disaster emergency plan”. Conduct the appropriate Hypothesis Test using ∝=.05. The steps of the hypothesis test are provided below: Step 1: State the null and alternative hypotheses one would use to test if less than 40% of US residents have a “natural disaster emergency plan”. Step 2: What distribution/model should be use to conduct this hypothesis test?(If using statistical features on your calculator then what test will you use?) Step 3: State rejection rule. Step 4: Provide the p-value. (From you calculator output or explain how you determined it) Step 5: Using ∝=.05, draw a conclusion.…
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Carefully state the null and alternative hypotheses of this test and find the missing values *, **, ***, ****, ***** What is the conclusion for this test? Give reasons for your answer.
A manager of a certain cargo company reported that his company has delivered 8453 packages during the month of January. Based on this information he also claimed that his company would deliver 124,400 packages during the year. уear. Determine whether the manager's claim is an example of a descriptive statistic or an example of an inferential statistic.
Which of the following would be an appropriate null hypothesis? The sample mean is greater than 3.4 O The sample mean is equal to 3.4 O The population mean is not equal to 3.4 The population mean is equal to 3.4 The population mean is equal to 3.4 « Previous MacBook Air
I need to turn this into a hypothesis test using a Ti84 As a dog owner I became curious as to the reason, why people choose to own a dog. I claim that more women choose to own a dog mainly for companionship than women who choose to have a large dog mainly for companionship. Do the data provide sufficient evidence to conclude that the proportion of women who prefer small dogs for companionship greater than the proportion of women who prefer large dogs for companionship? On Sunday, I will stand outside of my local Petco and survey women who are entering the store. I will ask if they own a dog, the main reason that they acquired a dog whether it was for protection or companionship and the size of their dog. I will collect this data in my notebook. I will not collect data from people exiting the store to ensure that I do not survey the same person more than once. I will acquire 30 samples of women who own small dogs and 30 women who own large dogs. I will not include women under the…
If we have a sample of size 100 from a population of rope with sample mean breaking strength of 960 pounds with standard deviation 200 pounds and we wish to run a hypothesis test with this data to see if the population mean breaking strength is less than 1000 pounds, then what is the TYPE I ERROR? NONE OF THE OTHERS The population mean was actually less than 960 pounds, but our data leads us to conclude it is at least 960 pounds, The population mean breaking strength is at least 1000 pounds but our data leads us to conclude it is less than 1000 pounds. The population mean breaking strength is not equal to 1000 pounds, but our data leads us to us to conclude it is equal to 1000 pounds. The population mean breaking strength is actually less than 1000 pounds, but our data leads us to us to conclude it is at least 1000 pounds.
The calculator at this link will allow you to perform a one-way chi-square or “goodness of fit test”:http://vassarstats.net/csfit.htmlLinks to an external site.Fifty students can choose between four different professors to take Introductory Statistics. The number choosing each professor is shown below. Use the calculator above to test the null hypothesis that there is no preference for professors -- that there is an equal chance of choosing each of them. Report your results including chi-square, degrees of freedom, p-value and your interpretation. Use an alpha level of .05. Be careful not to over interpret – state only what the test result tells you. Professor N Dr. Able 20 Dr. Baker 8 Dr. Chavez 14 Dr. Davis 8
Please show all parts of the hypothesis test, including the conclusion to reach the claim. thank you
The mean weight of super model winners is greater than 108 pounds. A study of 25 randomly selected super model resulted in a mean winner weight of 115 pounds. Choose the correct Null and Alternative Hypothesis