2. The table provided represents results on a survey given to U.S. adults on the issue of regional primary elections. The question asked was, "it has been proposed that four individual primaries be held in diferent weeks of June during presidential election years. Does this sound like a good idea or a bad idea? Good ides Peor idea No opinion Republican 200 200 Demoorat 250 176 Independent 27 21 At the 5% level of significance, do the data suggests that feelings of adults on the issue of regional primaries are dependent on political affiliation?

2. The table provided represents results on a survey given to U.S. adults on the issue of regional primary elections. The question asked was, "it has been proposed that four individual primaries be held in diferent weeks of June during presidential election years. Does this sound like a good idea or a bad idea? Good ides Peor idea No opinion Republican 200 200 Demoorat 250 176 Independent 27 21 At the 5% level of significance, do the data suggests that feelings of adults on the issue of regional primaries are dependent on political affiliation?

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Description: 2. The table provided represents results on a survey given to U.S. adults on theissue of regional primary elections. The question asked was, "it has beenproposed that four individual primaries be held in different weeks of June duringpresidential el

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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Suppose you work for a large cell phone distributor, and want to examine which brands of cell phones Canadians prefer around the country. Use the following example dataset regarding the number of users (in millions) based on phone preference and geographical location in Canada. Using this information, and assuming the sample represents the population of Canada perfectly, select all the statements below that are correct. |iPhone AndroidNeither 0.7 0.3 Ontario Quebec British Columbia Other 0.2 0.4 0.4 0.1 0.2 0.3 0.9 0.2 0.4 0.1 P(Ontarid Neither) -0.267 OP(Ontario)and P(British Columbia) are independent events. If a user was known to be from Quebec, the chance of them not using an iPhone is 50%. UP(Other) and P(Android) are not independent events. If a random Android user was selected, there is an approximately 23% chance that they are from British Columbia.
A local bank has three branch offices. The bank has a liberal sick leave policy, and the CEO was concerned with employees taking advantage of this policy. She thought that the tendency to take advantage depended on the branch at which the employee worked. To see if there were differences in the time employees took for sick leave, she asked each branch manager to sample employees randomly and record the number of days of sick leave taken during 2020. Ten employees were chosen, and the data are listed below. Do this data indicate a difference in branches? Use a level of significance of 0.05. Ho: H₂: Branch 1 Branch 2 Branch 3 Source Treatments Error Total Degrees of freedom: Rejection region: Test statistic: Decision: Conclusion: 15 11 18 df 2 7 9 20 15 19 SS 89.8333 50.6667 140.5000 19 11 23 MS 44.9167 7.2381 14 F 6.2056
In a recent survey [YouGov, 11th–16th June 2020], 1088 adults were asked (amongst other questions) if they thought Watford counted as part of London. The following excerpt from the results shows the number of survey participants in different age categories and the percentage of them saying that they did consider Watford as part of London. Age 18-24 25-49 50–64 65+Number of participants 124 544 247 173 Percentage saying Watford is in London 31 34 15 19
(6) A student surveys some students on campus in the evening and finds that 16 out of 20 of the students she interviewed are part time students. She uses the data to estimate the percentage of all students who are part time. What type of bias is present in her sample?
In order to estimate the proportion of students at a small liberal arts college who watch reality TV for more than 4 hours per week, a random sample of students at the school is selected and each is interviewed about his or her reality TV viewing habits. The students conducting the survey are worried that people that watch reality TV might be embarrassed to admit it and that they may not respond to the survey with honest answers. What type of bias are the students conducting the survey worried about? Measurement or response bias They shouldn't worry--there is no obvious source of bias. Selection bias Nonresponse bias
Age and party 2008. The Pew Research Centercollected data from national exits polls conducted byNBC News after the 2008 presidential election. Thefollowing table shows information regarding voter ageand party preference: a) What sampling strategy do you think the pollstersused? Explain.b) What percentage of the people surveyed wereDemocrats? c) Do you think this is a good estimate of the percent-age of voters in the United States who are registered Democrats? Why or why not?d) In creating this sample design, what question do youthink the pollsters were trying to answer? Republican Democrat Other Total18–29 260 390 351 100130–44 320 379 300 99945–64 329 369 300 99865+ 361 392 251 1004Total 1270 1530 1202 4002
In survey question, what is Nonresponse bias?
A survey asked 827 randomly sampled registered voters in California to select a response best fitting their opinion about drilling for oil and natural gas off the coastline of California. Response options include (1) Support, (2) Oppose, or (3) Do not know enough to answer. Data was disaggregated along whether respondents were college graduates or not. Here's the data: Support Drilling Oppose Drilling Doesn't Know Graduated College 154 180 104 Didn't Graduate College 132 126 131 Does this data show a statistically significant difference in the support of drilling between those who graduated college and those who didn't?
We wish to determine whether there is a relationship between the gender of ateenager and their preferred brand of running shoes. A survey of 200teenagers produced the following results: Preferred BrandGender,Nike, Asics ,New Balance and TotalFemale nike24 ascis19 new balance59 total102 Male nike32 asics28 new balance38 total98 Total nike56 asics47 new balance97 total200 Perform an appropriate test at a 5% level of significance to determine whetherthere is a relationship between the gender of teenagers and the preferredbrand of running shoes.
Need help with a review statistics question
When I was an undergraduate, I helped my father conduct some Child Psychology research about parental influence on gender bias. In this study we interviewed 158 kindergarteners. Our initial question was "What is your favorite color?" where we studied the distribution of "Pink" and "Blue" responses. To our surprise, 38 of the students interviewed responded "Turquoise". Use this information to select the response which correctly answers the question. Being curious, we decided to further interview the children who responded "Turquoise". While he took a lunch break, he told me to select 5 such children to form a group for interviews. How many different possible groups could I have formed? O 769754986 O 5.297 x 1036 O 501942 O 1109750