In a study of 824 randomly selected medical malpractice lawsuits, it was found that 485 of them were dropped or dismissed. Use a 0.01 significance level to test the claim that most medical malpractice lawsuits are dropped or dismissed. What is the P-value? P.value =O (Round to three decimal places as needed.)

According to a recent​ report, 46​% of college student internships are unpaid. A recent survey of 80 college interns at a local university found that 51 had unpaid internships.   b. Assume that the study found that 42 of the 80 college interns had unpaid internships and repeat​ (a). What is the test​ statistic?   ZSTAT= ​(Round to two decimal places as​ needed.) What is the​ p-value?   The​ p-value is   ​(Round to three decimal places as​ needed.)   What is the final​ conclusion?

You want to compare differences in prior arrests across ethnicity in your study, you measured ethnicity as white =0 black =1 hispanic=2, and other =3. Prior arrests was recorded as the number of prior arrests. which test would you perform to see if arrests differ across diffrent ethnic categories? A. ANOVA B. T-test

claim: Most adults would not erase all of their personal information online if they could. A software firm survey of 585 randomly selected adults showed that 49.3​% of them would erase all of their personal information online if they could. Make a subjective estimate to decide whether the results are significantly low or significantly​ high, then state a conclusion about the original claim.

In a study of the effect of college student employment on academic performance, the following summary statistics for GPA were reported for a sample of students who worked and for a sample of students who did not work. The samples were selected at random from working and nonworking students at a university. (Use a statistical computer package to calculate the P-value. Use ?employed − ?not employed. Round your test statistic to two decimal places, your df down to the nearest whole number, and your P-value to three decimal places.)   SampleSize MeanGPA StandardDeviation Students WhoAre Employed 174 3.12 0.475 Students WhoAre Not Employed 118 3.23 0.514 t =  df =  P =   Does this information support the hypothesis that for students at this university, those who are not employed have a higher mean GPA than those who are employed? Use a significance level of 0.05. Yes or no

A survey of 2314 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 428have donated blood in the past two years.   ​(a) Obtain a point estimate for the population proportion of adults in the country aged 18 and older who have donated blood in the past two years.   p=____? ​(Round to three decimal places as​ needed.)