Statistics Homework Solutions
#10374
Chi-squared
A chi-square test statistic was calculated to be 18, based on a sample variance of 20 and a hypothesized population variance of 40. How many observations were made when the sample was extracted? Which one?
a. 9
b. 10
c. 36
d. 37
The solution provides a comprehensive answer to the question going into a lot of details. The solution satifies all the requirements of the question.
What is this?
By OTA - Overall OTA Rating
Amrit Lal Ahuja, PhD (IP) - 4.9/5
Purchase Cost Now
$2.19 CAD (was ~$3.99)
Included in Download
- Plain text response
Why you can trust BrainMass.com
- Your Information is Secure
- Best Online Academic Help Service
- Students find real academic Success
- Hypothesis Testing: Chi-sqd - A new inoculation device uses a skin penetrating spray (rather than a hypodermic needle). Among the tests used to evaluate its effectiveness is one to determine if the amount of medication varies too ...
- Find Critical value - Find the critical value Chi squared R corresponding to a sample size of 3 and a confidence level of 95 percent.
- Chi squared distribution - Fine the value Chi squared value (X^2) 0.99 associated with X^2 curve with 10 degrees of freedom.
- Chi square intervals - (See attached file for full problem description with equations) --- Given that X is a normal variable and given the sample values s = 6, n = 20, (a) test the hypothesis that by showing that , ...
- The alternatives to a Chi squared test. - Is there an alternative test to the chi squared test? What if my results give an expected frequency below 5, which stats book states that these should be treated with caution? Is there a more appropri ...
