Question: A searcher claims that the incidence of a certain type of cancer is less than 5% to test this claim, a random sample of 4000 people are checked and 170 are determined to have the cancer. find the test statistics for the hypothesis test for the proportion round your answer to two decimal places
Question: A police office claim that the proportion of people wearing seat belt is less than 65% to test this claim a random sample of 200 drivers is taken and is determined that 126 people are wearing seat belts. find the test statistic for this hypothesis test for a proportion round your answer to two decimal places
Question: The owners of a Supermarket chain are looking into the effectiveness of the supermarkets loyalty card program. specifically, they would like to know if the percentage of Shoppers in their stores who use the loyalty card has changed from 63 % in 2014. Chloe works in the marketing department of the chain and is assigned to answer the owners’ enquiry randomly selects 196 customers from various stores in the chain and find that 114 use the loyalty card what are the null and alternative hypothesis for this test hypothesis?
Question: kylie works for a large nursery and is investigating whether to use a new brand of seeds. the new brand of seeds advertisers that 93% of the seeds germinate, which is higher than the germination rate of the seeds she is currently using she will change over to this new brand unless the actual germination rate is less than what is advertised. Kylie conducts experiment by randomly selecting 76 seeds of the new brand and plants them she finds that 70 of those seeds germinated which are the null and alternative hypothesis for this hypothesis test.
Instituition / Term
Term
Year 2022
Institution
MATH 225N Statistical Reasoning for the Health Sciences
