p value, make a decision, is there or is there not enough evidence Mistakes in a Song A random sample of six music students played a short song, and the number of mistakes in music each student made was recorded. Afterthey practiced the song 5 times, the number of mistakes each student made was recorded. The data are shown. At a=0.05, can it be concluded that there wasa decrease in the mean number of mistakes? Assume that all variables are normally or approximately normally distributed. Let u₁ be the mean before andHD H1 H2. Use the P-value method and a TI-83 Plus/TI-84 Plus calculator.Student ABCDFBefore12149884After1112 57133Send data to ExcelPart: 0/4Part 1 of 4(a) State the hypotheses and identify the claim with the correct hypothesis.□<□ 0>0ローロH₁:(Choose one)H₁:(Choose one)□≠□HDSubmit Assic

Step 1: Objective and ConceptObjective:-To conduct a hypothesis test. Concept:-In the context of the…

Answered: Mistakes in a Song A random sample of…

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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Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 640 randomly selected adults showed that 99.3% of them would erase all of their personal information online if they could. Make a subjective estimate to decide whether the results are significantly low or significantly high, then state a conclusion about the original claim.
No programming please. I don’t want a code as an answer.
use a hypothesis test to determine if the proportions are statistically different. A recent survey showed that in a sample of 100 elementary school teachers, 15 were single. In a sample of 180high school teachers, 36 were single. Is the proportion of high school teachers who were single greater than theproportion of elementary teachers who were single? Use ΅ = 0.01.
What does hypothesis test indicates?
Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below. Does an employee’s attitude affect their job performance? Performance 59 63 65 69 58 77 76 69 70 64 Attitude 72 67 78 82 75 87 92 83 87 78 What is the test statistic for this hypothesis test, critical value, pvalue of the hypothesis test?
Hypothesis testing will consist of four hypothesis tests which you need to complete. While you will not need to show your work or upload any files, each test will require the following: Type of Test: Null Hypothesis: Alternate Hypothesis: SE: Test Statistic: P-value: Decision: Sentence:
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.
What is all about the Test of Goodness of Fit and the Test of Independence? Give example.
Does more education lower a person’s level of prejudice? The number of years of education and the score on a prejudice test for ten people is given in the following table. Higher scores on the test indicate more prejudice. Years of Education: 12, 15, 14, 13, 18, 10, 16, 12, 10, 4 Score of Prejudice Test: 1, 6, 2, 3, 2, 4, 1, 5, 5, 10 Conduct a hypothesis test to determine if there is a significant linear correlation between the two variables. If there is a significant linear correlation between the variables, determine the regression equation. There is a significant correlation between the variables and the regression equation is y' = 10.5 - 0.532x There is a significant correlation between the variables and the regression equation is y' = - 0.532 + 10.5x There is not a significant correlation between the variables, so the regression equation should not be determined. There is a significant correlation between the variables and the regression equation is y' = 16.509 - 1.054x
Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 600 randomly selected adults showed that 62% of them would erase all of their personal information online if they could. Find the value of the test statistic.
The table to the right contains observed values and expected values in parentheses for two categorical variables, X and Y, where variable X has three categories and variable Y has two categories. Use the table to complete parts (a) and (b) below. EQuestion Help X, X2 32 44 51 (35.39)(44.42)(47.19 19 20 17 (15.61)(19.58)(20.81) O B. H,: The Y category and X category have equal proportions. H,: The proportions are not equal. OC. Hn: The Y category andX category are dependent. H,: The Y category and X category are independent. OD. Ho: H -E, and Hy =E, H: H #E, or H, 7E, What is the P-value? P-value = (Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer. port
A hypothesis test is conducted to determine whether the percentage of US adults that think marijuana should be illegal is less than 40%. A random sample of 400 US adults includes 144 that think marijuana should be illegal. The value of the test statistic is -1.63 Find the P-value of the hypothesis test

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