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Question 14 0 / 1 pts Tina Dennis believes that the current cash-flow problem at Meek is due to the slow collection of accounts receivable.
Question 14 0 / 1 pts Tina Dennis believes that the current cash-flow problem at Meek is due to the slow collection of accounts receivable. She believes that more than 60% of the accounts are in arrears for more than three months. A random sample of 200 accounts showed that 140 were more than three months old. At the .01 significance level, can she conclude that more than 60% of the accounts are in arrears for more than three months? Find the T-stat? Leave answer in 2 decimal places O 2.11 O 2.87 O -1.90 O -2.88 1.89 O -2.12Question 9 0 / 1 pts The fatality rate for lung cancer in the 1990's was 80 per 100,000 people. After the turn of the century and the establishment of newer treatments and adjustment in public health advertising, a random sample of 10,000 people exhibits only six deaths due to lung cancer. Test at the .05 significance level whether these data are proof of a reduced fatality rate for lung cancer. Find the T-stat? Leave answer in 2 decimal places O 0.71 O -0.38 O -1.70 O -0.29 O 1.73 O -0.72Question 10 0 / 1 pts The following hypotheses are given. Ho: p 0.70 A sample of 100 observations revealed that p-hat = .75. At the 05 significance level, can the null hypothesis be rejected? Find the T-stat? Leave answer in 2 decimal places 2.10 O -1.07 O 1.09 O -2.08 O -3.11
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