In a recent health insurance survey, employees at a large corporation were asked, "have you been a patient in a hospital during the past year, and if so, for what reason? " the following results were obtained: 495 employees had an injury, 771 had an illness, 1,256 had tests, 248 had an injury and an illness and tests, 705 had an illness and tests, 506 had tests and no injury or illness, 952 had an injury or illness, and 1,549 had not been a patient. (round your answers to one decimal place.)
what percent of the employees had been patients in a hospital?

Atest of sobriety involves measuring the subject's motor skills. a sample of 31 randomly selected sober subjects take the test and produce a mean score of 64.4 with a standard deviation of 2. a claim is made that the true mean score for all sober subjects is equal to 65. for each part below, enter only a numeric value in the answer box. for example, do not type "z =" or "t =" before your answers. round each of your answers to 3 places after the decimal point. (a) calculate the value of the test statistic used in this test. test statistic's value = (b) use your calculator to find the p-value of this test. p-value = (c) use your calculator to find the critical value(s) used to test this claim at the 0.2 significance level. if there are two critical values, then list them both with a comma between them. critical value(s) =