You are told that your IQ scores falls at the 79th percentile.  What conclusion could you make about how you scored compared to others?

If Ted scores in the first quartile on his math test, that means he scored better than most students on the test.  True or False

Researchers have been studying the reliability of a new medical test. On their last study, they found that the test accurately identified those with the disease 92% of the time, and it accurately identified those without the disease only 74% of the time. There were 1,000 total people in this study, and 200 of them had the disease. Complete the table below using this information. Then, use your completed table to help you answer the questions. Disease Is Present Healthy (Disease Is Not Present) 184 Positive Test Result 16 Negative Test Result ९ Enter text [more.. 592 a) If an individual does not have the disease, what is the probability that the test suggests that the disease is present? Give your answer as a percent rounded to the nearest hundredth, if necessary. Be sure to include the % when inputting your answer. 0.26 X b) If the test result suggests that the disease is present, what is the probability that the patient does not have the disease? Give your answer as a percent rounded…

In a typical set of numerical data, what fraction of the data values lie above Q3?

Suppose we measure GPA for people in our class, we find the mean is 2.8 and the median is 3.2. What can you say is most likely true about GPAs in our class?

th Last year over 8000 students took an entrance exam at a certain state university. Tom's score was at the 55 percentile. Leila's score was at the 86 percentile. (a) Which of the following must be true about Tom's and Leila's scores? O Tom scored higher than Leila. O Both Tom and Leila scored higher than the median. O Leila answered 31 more questions correctly than Tom. O Tom's and Leila's scores were both in the bottom half of all scores. (b) Which of the following must be true about Tom's score? O Tom scored lower than about 55% of the students who took the exam. O Tom got about 55% of the questions correct. Tom scored higher than about 55% of the students who took the exam. Tom got about 55% of the questions wrong. Submit Assignme Continue iert 144 %23 4. 6. 8 R Y U H K L A. D paus V. B M alt ctri alt USE YOUR Dew de LL

A mathematics professor lost a test paper belonging to one of her students. She remembered that the mean score for the class of 20 was 81 and that the sum of the 19 other scores was 1530. What was the grade on the paper she lost?

In a population of scores, x=45 corresponds to z=+2.00 and x=30 corresponds to z=-1.00 what is the population mean

A colleague of yours is faced with testing a relationship at the .05 level or significance or the .01 level of significance. What is your advice to your colleague?  Why?

A student pursuing a degree in English as a second language believes the proportion female factory workers who can't speak English is less than the proportion of male factory workers who can't speak English. To test her claim she randomly selects 313 female factory workers and out of them 48 could not speak English. She then randomly selects 400 male factory workers and out of them 43 could not speak English. Test her claim at a=0.05 to see if she was right. The correct hypotheses are: O Ho:PF Рм (сclaim) O Ho:PF 2 PM HA:PF < PM(claim) O Ho:PF = pM HA:PF + PM(claim) Since the level of significance is 0.10 the critical value is -1.282 The test statistic is: (round to 3 places) The p-value is: (round to 3 places) The decision can be made to: O reject Ho O do not reject Ho The final conclusion is that: O There is enough evidence to reject the claim that the proportion female factory workers who can't speak English is less than the proportion of male factory workers who can't speak…