Exhibit 12-6The following shows the number of individuals in a random sample of 300 adults who indicated they support the newtax proposal.23Political Party300Democrats299RepublicansSupportIndependentsWe are interested in determining whether the opinions of the individuals of the three groups are uniformly distributed.100Refer to Exhibit 12-6. The number of degrees of freedom associated with this problem is12080

We can use chi-square test to find whether the opinions of the individuals of the three groups are…

Answered: Exhibit 12-6 The following shows the…

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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16 Find the mode(s) for the following group of data items. 20, 17, 16, 15, 21, 18, 14, 16 Select the correct choice below and, if necessary, fill in the answer box within your choice. A. The mode(s) is/are _____. (Use a comma to separate answers as needed.)
Gender and Award Preference: A two-way table showing preferences for an award (Academy Award, Nobel Prize, Olympic gold medal) by gender for the students sampled in shown below. Test whether the data indicate there is some association between gender and preferred award. Use a=.05 Two-way table of gender and preferred award Academy Nobel Olympic Total Female 20 76 73 169 Male 11 73 109 193 Total 31 149 182 362 How many degrees of freedom do we have for this test? Find the value of the chi-square statistic for the sample. Find the p-value. Do you reject the null hypothesis? Yes or no.
To investigate how people communicate over the internet, a researcher had subjects write messages in an online forum. She split her sample of 76 participants into young adults and older adults based on their age. She then compared how many emojis and emoticons the young adults used in their messages compared to the older adults. What is the best test to analyze the results of this study? One Sampe Z Test One Sample t Test Independent Samples t Test Dependent Samples t Test
In the following picture there is a box diagram or two variables containing the annual income of mayors and annual income per person for a sample of 32 towns in Puerto Rico The distribution of annual income of the mayors in this 32 towns of Puerto Rico are: A. Can’t tell B. Symmetric C. Skewed to the left D. Skewed to the right
If there are 11 people in the first sample and 10 people in the second sample, the degrees of freedom for the first sample is type your answer... and type your answer... for the second sample.
Do question 1
3899 you're a data analyst for an insurance company. You want to make sure that your employer is not over-paying for car repairs. To investigate this, you bring 38 different cars to two different garages, Bubba's Hubcap Heaven and Repair, and Merle's Motor Shop. Some of the cars need lots of repairs. Some of the cars need very few. By taking each car to both shops, we can directly compare the two sets of prices. Before running your analysis, be sure to look at the data file and verify that each car requires a different amount of repairs, and that prices in one shop are correlated with prices at the other shop. That is, they're in the same ballpark. The question is whether one tends to charge more, on average, than the other. Your task is to use Excel to test the research hypothesis that prices are different in the two shops; the null hypothesis is that prices are equal between the two shops. You test at the alpha = 0.01 significance level. What do you conclude? Are prices the same?…
I need help with question 7
Moving to another question will save this response. Question 5 Obtain the five-number summary for the given data. The test scores of 15 students are listed below. 42 45 50 53 57 61 67 68 75 76 85 87 90 94 95 O 42, 53, 71.5, 87, 95 42, 52.25, 71.5, 85.5, 95 O 42, 53, 68, 87, 95 O 42, 52.25, 68, 85.5, 95 A Moving to another question will save this response. earch F2 DII F3 F4 F5 PrtS 5 W
Mr Alsup asked the studentS in his third-and sixth-period English classes whether they had chosen a topic for thier writing assignment. he recorded the data in a two-way table, as shown below English class Yes No Total Third period 24 6 30 Sixth period 22 3 25 Total 46 9 55 if jannette in in mr alsup sixth-period english class what is the probablity that she has not chosen a topic for her writing assignment? a- 3% b- 5% c- 12% d-14%
ch 11 end. 5 : The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodology in this survey, the sample sizes are unequal. Research question: Are the mean annual attendance rates the same for employees in these three departments?
Need 99% interval for all five countries.

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