A survey was conducted in five countries. The percentages of respondents whose household members own more than one personal computer, laptop, notebook or iPad are as follows:AustraliaNew ZealandChinaJapanSouth Korea53%48%38%54%49%Suppose that the survey was based on 500 respondents in each country.a) At the 0.05 level of significance, determine whether there is some significant difference in the proportion of households in these countries who own more than one computer (personal computer, laptop, notebook or iPad). Do the calculations first manually and then in R.

A survey was conducted in five countries. The percentages of respondents whose household members own more than one personal computer, laptop, notebook or iPad are as follows:AustraliaNew ZealandChinaJapanSouth Korea53%48%38%54%49%Suppose that the survey was based on 500 respondents in each country.a) At the 0.05 level of significance, determine whether there is some significant difference in the proportion of households in these countries who own more than one computer (personal computer, laptop, notebook or iPad). Do the calculations first manually and then in R.b) Find the approximate p-value of the test in (a) from the relevant statistical table.

Read the following information carefully and answer the 4 questions.A survey was conducted among 200 users of laptops of different companies. It was found that 160 use laptops of SONY, 100 use laptops of HP and 90 use laptops of TOSHIBA. 20 use laptops of all the three companies and each one uses laptops of at least one of the three companies.Q1. How many use laptops of only one company ?Question 18Answera.95b.105c.80d.70

A consumer survey was conducted to examine patterns in ownership of tablet computers, cellular telephones, and Blu-ray players. The following data were obtained: 315 people had tablet computers, 236 had cell phones, 269 had Blu-ray players, 69 had all three, 64 had none, 94 had cell phones and Blu-ray players, 57 had cell phones but no computers or Blu-ray players, and 108 had computers and Blu-ray players but no cell phones. (Round your answers to one decimal place.)(a) What percent of the people surveyed owned a cell phone? %(b) What percent of the people surveyed owned only a cell phone?

Based on survey results, the proportion of U.S. adults who own at least one Apple product (iphone, ipad, macbook, etc) is 0.42. This point estimate would be unbiased and most accurate if the survey were based on which of the following? A random sample of 1,000 U.S. adults A random sample of 1,800 U.S. adults A random sample of 2,500 U.S. college students An internet survey posted on TechGuru.com with 3,100 responses

A survey was conducted among 200 users of laptops of different companies. It was found that 160 use laptops of SONY, 100 use laptops of HP and 90 use laptops of TOSHIBA. 20 use laptops of all the three companies and each one uses laptops of at least one of the three companies.Q4. What is the minimum possible number of users, who uses only SONY ?Question 21Answera.45b.25c.30d.50