You're fired! ~ Suppose that in a random sample of 252 employed Americans, there are 38 individuals who say that they would fire their boss if theycould.Round all calculated values in this problem to 4 decimal places.1. The value 38/252 = 0.1508 is a StatisticWe want to use the information from the sample to conduct a hypothesis test to determine if fewer than 19% of employed Americans would fire theirboss if they could.2. Choose the null and alternative hypotheses for this test. Use appropriate notation.ОА. Но : р %3D 0.19, На : р <0.19В. Но : р %3D 0.19, На : р#0.19С. Но : р %3D 0.19, На : р<0.1508OD. Ho : p = 0.19, HA : p > 0.19A3. If you assume that the observations in the sample are independent, what is the smallest value the sample size could be to meet the conditions forthis hypothesis test?А. 38В. 10С. 20D. 67ОЕ. 53OF. None of the above 4. Calculate the test statistic.Z =5. Calculate thevalue.p =6. Based on the p value we have Somev evidence that the null model is not a good fit for our observed data.

We have given that Sample size n=252 Favorable cases x = 38 Sample proportion p^=x/n

Answered: 4. Calculate the test statistic. z = 5.…

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 are testing the claim that having lights on at night increases weight gain (abstract). A sample of 10 mice lived in an environment with bright light on all of the time and 8 mice who lived in an environment with a normal light/dark cycle is given below. Test the claim using a 10% level of significance. Assume the population variances are unequal and that the weight changes are normally distributed. Give answers to 3 decimal places. Data available at StatKey, choose Mice Wgt Gain-2e data set Light (x₁) 1.71 4.67 4.99 5.33 5.43 6.94 7.15 9.17 10.26 11.67 What are the correct hypotheses? Note this may view better in full screen mode. Select the correct symbols in the order they appear in the problem. Ho: Select an answer ? V Select an answer V Ha: Select an answer ✓ Based on the hypotheses, find the following: Test Statistic = Dark (₂) 2.27 2.53 2.83 4 4.21 4.6 5.95 6.52 p-value = ? V Select an answer V (Hint: difference in means from Ha) The correct decision is to Select an answer…
Need sub part B answered only
i. Write out the regression equation ii. What is the sample size used in this investigation? iii. Determine the values of *, ** and ***, **** iv. Conduct a hypothesis test, at the 5% level of significance, to determine whether ? issignificant. v. What would be the growth of the plant if 4g of fertilizer and 7g of ater was given to itdaily? vi. Carry out an F -test at the 1% significance level to determine whether the model issignificant
Professor Nord stated that the mean score on the final exam from all the years he has been teaching is a 79%. Colby was in his most recent class, and his class’s mean score on the final exam was 82%. Colby decided to run a hypothesis test to determine if the mean score of his class was significantly greater than the mean score of the population. α = .01. What is the mean score of the population? What is the mean score of the sample? Is this test one-tailed or two-tailed? Why?
a. b. C. Name: 3. You have been provided the following regression summery output for the demand for Good X. F df Significance F 0.00000798529 53.29202 Regression Residual Total Intercept Price (Px) Income (1) Price Other (Py) 3 56 59 Coefficients 355.8130 -4.9835 0.8762 -1.4893 SS 824.897 209.662 1,034.559 Standard Error 0.632473 0.939474 0.487969 0.968633 MS 255.3953 4.792375 P-value 6.45E-05 0.001985 0.078924 0.027889 Using the estimates above, state the demand function rounded to two decimals (Format: Qx=do+a1 Px + a ₂1+ a 3Py): Is the product called X a normal or inferior good? (motivate) Is the "Price Other (Py)" referring to a complement or substitute good (motivate)
I understand how to find the f-ratio and generate a conclusion however I am really struggling with the p-values.
I know the answer between choice I) and choice II) is: I) But why is it choice I)?
Please sir or ma’am, please help me with hypothesis, critical region, and t statistic.
Data for fuel economy ratings in mi/gal for different cars are listed below. Each pair of data represents the rating using the Old test and the New test. Old (x) 31 22 23 33 27 21 22 19 31 16 New (y) 25 17 26 26 23 18 19 16 28 19 Find the best predicted value for the New test method given that the Old test method rating was 26. Use a significance level of 0.05.Round your answer to 1 decimal place, if needed.
Which of the following is not a sample property of OLS? a. Sample covariance of each included variable and the residuals is zero b. the sum of all residuals is zero c. the average of all residuals is zero d. the covariance of x and y is on the regression line.

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4. Calculate the test statistic. z = 5. Calculate the p value. p = 6. Based on the p value we have Some v evidence that the null model is not a good fit for our observed data.