Chi-square distribution tableDegrees ofFreedom123456789100.9950.0100.0720.2070.4120.6760.9891.3441.7352.1560.990.0200.1150.2970.5540.8721.2391.6462.0882.558PrintArea to the Right of the Critical Value0.9750.0010.0510.2160.4840.8311.2371.6902.1802.7003.2470.950.0040.1030.3520.7111.1451.6352.1672.7333.3253.940DoneIx0.900.0160.2110.5841.0641.6102.2042.8333.4904.1684.8650.102.7064.6056.2517.7799.23610.64512.01713.36214.68415.987the conclusios. The table beel to test the counts would repectation? Conduct the hypothesis test and provide the test statistic and the critical value, and state the conclusion.KA person randomly selected 100 checks and recorded the cents portions of those checks. The table below lists thosecents portions categorized according to the indicated values. Use a 0.05 significance level to test the claim that the fourcategories are equally likely. The person expected that many checks for whole dollar amounts would result in adisproportionately high frequency for the first category, but do the results support that expectation?D0-2430Cents portion of check25-4924NumberClick here to view the chi-square distribution table.The test statistic is(Round to three decimal paces as needed.)50-741975-9927

The formula for the chi-square test statistic is given as,

Answered: Conduct the hypothesis test and provide…

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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In a 25-unit sample of a variable with a population average of 50, the Mean was 53 and the variance was 100. Which of the following is the test statistic for hypothesis testing? Please select one: a. 2.5 b. 1 c. 0.75 d. 3 e. 1.5
Find the test statistic and p value
Need the test statistic and p value pls help Thankyou.
The average house has 14 paintings on its walls. Is the mean larger for houses owned by teachers? The data show the results of a survey of 14 teachers who were asked how many paintings they have in their houses. Assume that the distribution of the population is normal. 15, 13, 16, 16, 17, 14, 14, 15, 13, 13, 15, 16, 15, 16 What can be concluded at the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Но: ? Select an answer v H: ?v Select an answer v c. The test statistic ? v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? va f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest that the population mean number of paintings that are in teachers' houses is not significantly more than 14 at a = 0.01, so there is insufficient evidence to conclude that…
The average house has 15 paintings on its walls. Is the mean larger for houses owned by teachers? The data show the results of a survey of 16 teachers who were asked how many paintings they have in their houses. Assume that the distribution of the population is normal. 18, 15, 17, 14, 16, 17, 18, 15, 15, 14, 14, 14, 15, 15, 16, 18 What can be concluded at the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Но: Select an answer v H1: Select an answer v c. The test statistic ? v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? va f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the population mean is not significantly more than 15 at a = 0.05, so there is sufficient evidence to conclude that the population mean number of paintings that are in…
← The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (a) and (b) below. is 2: ? Actress (years) 27 27 Actor (years) 56 35 2 a. Use the sample data with a 0.01 significance level to test the claim that for the population of ages of Best Actresses and Best Actors, the differences have a mean less than 0 (indicating that the Best Actresses are generally younger than Best Actors). View an example In this example, is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the actress's age minus the actor's age. What are the null and alternative hypotheses for the hypothesis test? Ho: H0 year(s) H₁: H0 year(s) (Type integers or decimals. Do not round.) Identify the test statistic. t=…
Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 475 randomly selected adults showed that 57% of them would erase all of their personal information online if they could. Find the value of the test statistic.
If Ashley wants to test for GPA differences among first-, second-, third-, and fourth-year college students, which of these difference tests should she use? A. chi-square test of independence B. between-subjects, two-way ANOVA C. between-subjects, one-way ANOVA D. repeated-measures ANOVA
In a survey of 3078 adults, 1410 say they have started paying bills online in the last year. Construct a 99% confidence interval for the population proportion. Interpret the results. Interpret your results. Choose the correct answer below. A. The endpoints of the given confidence interval show that adults pay bills online 99% of the time. B. With 99% confidence, it can be said that the sample proportion of adults who say they have started paying bills online in the last year is between the endpoints of the given confidence interval. C. With 99% confidence, it can be said that the population proportion of adults who say they have started paying bills online in the last year is between the endpoints of the given confidence interval.
Need help with C, F and G please!
Past studies have indicated that the percentage of smokers was estimated to be about 34%. Given the new smoking cessation programs that have been implemented, you now believe that the percentage of smokers has reduced. You randomly surveyed 1783 people and found that 553 smoke. Use a 0.05 significance level to test the claim that the percentage of smokers has reduced.
A marketing director developed a short television commercial to improve the image of a company. The commercial was tested on 20 people. People’s attitudes about the company were measured with a questionnaire when they first came in for the experiment and then again with the same questionnaire after viewing the commercial. Which statistical test would be best to determine if there is a significant difference between measures? one-sample t-test dependent samples t-test independent samples t-test ANOVA

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