Monday

March 30, 2015

March 30, 2015

Posted by **Nabiha** on Saturday, December 3, 2011 at 8:23pm.

a) show that the probability of them both having degrees is 3/36

b)Find the probability that only one of them has a degree.

c) Find the probability that neither of them has a degree.

- statistics -
**sara**, Saturday, December 3, 2011 at 9:38pmA study was made of 413 children who were hospitalized as a result of motor vehicle crashes. Among 290 children who were not using seat belts, 50 were injured severely. Among children using seat belts, 16 were injured severely (based on data from “Morbidity Among Pediatric Motor Vehicle Crash Victims: The Effectiveness of Seat Belts,’’ by Osberg and Di Scala, American Journal of Public Health, Vol. 82, No. 3).

a) State the null hypothesis and alternative hypothesis.

b) Compute the test statistic.

c) Is there sufficient sample evidence to conclude, at the 0.05 significance level, that the rate of severe injuries is lower for children wearing seat belts?

d) Calculate the p-value.

e) State a conclusion about the null hypothesis and state a final conclusion that addresses the original claim

**Answer this Question**

**Related Questions**

statistics - The probability that a married man watches a certain television ...

intro to statistics - A random study of recent graduates' average grades and ...

Probability - A husband and wife discover that there is a 10% probability of ...

statistics - The below table shows the probabilities generated by rolling one ...

statistics - 1. Express the indicated degree of likelihood as a probability ...

statistics - 1. Express the indicated degree of likelihood as a probability ...

statistics - Define each of the following probability terms for the scenario of ...

Statistics - The body temperatures of adults are normally distributed with a ...

Math - A newly married couple expected a boy and a girl or four children, ...

12 math - there are 8 opposite sex married couples at a party. two people are ...