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In 2019, fifteen thousand US households were randomly surveyed and it was found that 10575 households purchased goods online. Using a 99% confidence level, test
In 2019, fifteen thousand US households were randomly surveyed and it was found that 10575 households purchased goods online. Using a 99% confidence level, test the claim that the true proportion of all US households that purchased goods online in 2019 was greater than 68%. For the above problem: i) Name the parameter(s) that is being tested using both the parameter name and the appropriate symbol. If this is for two samples, then name the parameters appropriately using subscripts 1 and 2 with descriptions. ii) Name and give the values of the correct sample statistic(s) that is being used to test the claim. Use both a name using the appropriate symbol and give the value. If this is a test using two samples, then name the sample statistics using the correct subscripts as defined in i) and give the values appropriately. For means/std. dev. use the values given, and for proportions give fractions only. iii) Give the correct alternative hypothesis for the test using correct notation. Give specific words, phrases or other important information that helped you write the hypothesis. iv) Name the correct distribution that will be used to conduct the hypothesis test and explain how you know. You have only two choices Normal or Student's
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