Monday
July 28, 2014

Homework Help: statistics

Posted by Crystal on Friday, December 27, 2013 at 2:22pm.

I really need help with my statistical analysis... i cant understand it. Here are the questions

A sample group was surveyed to determine which of two brands of soap was preferred. H0 :p = 0.50; H1: p is not equal to 0.50. Thirty-eight of 60 people indicated a preference. At the .05 level of significance, we can conclude that:

The performance of students on a test resulted in a mean score of 25. A new test is instituted and the instructor believes the mean score is now lower. A random sample of 64 students resulted in 40 scores below 25. At a significance level of α = .05:

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics - I have to analyze a statistical research paper and have never done ...
Statistics - 1. z test 2. t test for independent samples, and 3. t test for ...
statistics - if u had a scenario where your boss promoted you for your ...
Statistics - For the past week I have been trying to find Canadian statistics ...
STATISTICS - A teacher wants to investigate whether there is a difference ...
Statistics - When conducting an inferential statistical analysis, and applying a...
Statistics - Post a null hypothesis that would use a t test statistical ...
UNC - What is an example of "statistical abuse" in the media in january 2011. ...
ib math studies - i need a internat assesment project idea with something to do ...
statistics - An analysis of variance is used to evaluate the mean differences ...

Search
Members