Posted by **shirley** on Tuesday, November 29, 2011 at 12:15am.

4.Suppose you administered an anxiety test to a large sample of people and obtained normally distributed scores with a mean of 45 and standard deviation of 4. Do not use web-calculator to answer the following questions. Instead, you need to use the Z distribution table in Appendix A in Jackson’s book.

d.There are 200 students in a sample. How many of these students will have scores that fall under the score of 41?

- What?? -
**Writeacher**, Tuesday, November 29, 2011 at 6:46am
If you really want an expert to help you, be sure to follow directions and type your __subject__ in the **School Subject** box. Any other words, __including obscure abbreviations__, are likely to delay responses from a teacher who knows that subject well.

Also ... please note that no one here will do your work for you. However, we will be happy to read over what YOU THINK and make suggestions and/or corrections.

**Please post what **__you think.__

- university of phoenix -
**Reiny**, Tuesday, November 29, 2011 at 8:28am
The z-score for your 41 is

(41-45)/4 = -1

so use your chart to find the decimal for a standard deviation of -1 (should be .159 depending on the accuracy of your chart)

multiply that by 200

## Answer this Question

## Related Questions

- Statistics - Suppose you administered an anxiety test to a large sample of ...
- statistics - Suppose you administered an anxiety test to a large sample of ...
- statistics - 4. Suppose you administered an anxiety test to a large sample of ...
- statistics - the dean of admissions in a large university has determined that ...
- statistics! - 1) Entry to a certain University is determined by a national test...
- statistics - IQ scores are normally distributed with a mean of 105 and a ...
- statistics - Suppose that the population standard deviation (ó) for a normally ...
- statistics - Suppose it is known that the average score of all high school ...
- Word Problem - A math teacher gives two different tests to measure students' ...
- statistics - You are conducting an experiment to see if a given therapy works to...

More Related Questions