Wednesday
August 20, 2014

Homework Help: statistics

Posted by pokwang on Sunday, September 18, 2011 at 12:07am.

It is known from the records of the City Schools that the standard deviation
of Algebra scores is 6.0. A sample of 200 students from the system was
taken and was found out that the sample mean score is 75. Previous tests
showed the population mean to be 70. Is it safe to conclude that the
sample is significantly different from the population? Use α= 0.05.

Answer this Question

First Name:
School Subject:
Answer:

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 - d. There are 200 students in a sample. How many of these students ...
statistics - what are the mean and standard deviation of a sampling distribution...
Statistics - 3. A professor is interested in whether there is a difference in ...
statistics - The Survey of Study Habits and Attitudes (SSHA) is a psychological ...
statistics - Suppose that the mean score of an exam was 77 when taken 30 ...
statistics - Suppose that the mean score of an exam was 77 when taken 30 ...
statistics - IQ scores are normally distributed with a mean of 105 and a ...
statistics - The Survey of Study Habits and Attitudes (SSHA) is a psychological ...

Search
Members