### Determining reversal

Assignment Help Basic Statistics
##### Reference no: EM13110267

1. In the 2000 football season, 247 plays were reviewed by officials using instant video replays, and 83 of them resulted in reversal of the original call. In the 2001 football season, 258 plays were reviewed and 89 of them were reversed. Test the claim that the proportion of plays reversed is different for the 2000 and 2001 seasons.

a) State the null and alternative Hypotheses (H0 and H1).

b) Calculate the test statistic. 11 or 6

c) What is the critical value for ?

d) State your conclusion (reject H0 or fail to reject H0 )and explain your reasoning. Fail to reject H0

e) Is there a .05 significant difference in the two reversal rates? yes

#### Introduction to non-parameiric test

Suppose normality is not assumed. What nonparameiric test can be used to compare total heart weight of males with left-heart disease with that of normal males?

#### Statistical psychology

Explanation on what is the logic behind using the sum of the products of deviation scores as the numerator of the formula for the correlation coefficient?

#### Convert into valid standard form syllogisms - us surgeon

Convert them into valid standard-form syllogisms. The U.S. surgeon general's latest report on cigarettes and cancer is an interesting example of natural selection in the lat

#### Find confidence interval for true mean thermostat setting

Find confidence interval for true mean thermostat setting for New England homeowners during winter.- Find a 95% confidence interval for the true mean thermostat setting for So

#### Component with a reliability

Two components of reliability 0.95 are in parallel and this subsystem is connected in series to a component with a reliability of 0.90. Calculate the overall reliability of

#### Choose a research topic and an interviewer

For this assignment, you will submit only the FINAL copy as there is no DRAFT option. This assignment is designed to help inform a topic that interests you, and the informat

#### Find chance of element being included in the sample

Simple random sample of 100 elements is taken: (a) What is the chance of an element being included in the sample? (b) What is this chance called (hint: not probability)?

Assume the underlying population is normal and that σ = 3.4. Is there any evidence to suggest that the download speed for the United States is greater than the world populat