Posted by **Anonymous** on Friday, April 18, 2014 at 8:49pm.

Scores on a national exam assume a normal distribution with a population mean of 50 and population standard deviation of 10 points. A sample of 36 exam scores was selected from UCA with a mean score of 58 points. Using a significance level of 0.01, determine whether scores on the exam have actually increased, statistically. What is the null hypothesis?

- statistics -
**PsyDAG**, Saturday, April 19, 2014 at 1:00pm
Ho: ยต = sample mean

- statistics -
**Anonymous**, Monday, March 28, 2016 at 11:01pm
buhiu

## Answer This Question

## Related Questions

- statistics - The scores of students on the ACT college entrance examination in ...
- Statistics - 1. The scores of students on the ACT college entrance examination ...
- statistic - In a population of exam scores, a score of X 48 corresponds to z...
- statistics - Scores on a national writing exam are approximately normally ...
- Math - I need help with this these two problem PLEASE!!! For a population with ...
- Statistics - 5. Scores on a recent national statistics exam were normally ...
- math - Statistics: Analyze student exam scores Students were given an exam with ...
- statistic - 1. A distribution has a standard deviation of 12. Find the z-...
- statistics - what are the mean and standard deviation of a sampling distribution...
- probability and statistics - a population forms a normal distribution with a ...

More Related Questions