Sample size

Related BrainMass Solutions

• Margin of Error & Sample size

  Discuss the effect of margin of error on sample size. The sample size is given by . Hence as margin of error increases, the sample size decreases and vice-versa.

• Sample size: Penny abolition

  Size 1233.727815 Result Sample Size Needed 1234 B)What is the minimum sample size needed assuming that no prior information is available?

• Determining sample size when planning statistical study

  460795 Determining sample size when planning statistical study SAMPLE SIZE DETERMINATION Determining sample-size is important step when planning a statistical study. It is also quite a difficult task since many variables must be considered.

• Confidence Interval & Sample Size

  Intermediate Calculations Z Value -1.959963985 Calculated Sample Size 928.7793771 Result Sample Size Needed 929 Hence the sample size required = 929 1(c)(ii) The sample size is given by where p is taken as 0.5 Sample Size

• Calculations for Standard Error of the Mean

  In order to manipulate the standard error of the mean to be 15, we would: A. increase the sample size to 200 B. increase the sample size to 400 C. decrease the sample size to 50 D. decrease the sample size to 25.

• Probability of Proportions

  Result Sample Size Needed 196 c.

• Sample size from a survey of food costs per year

  for the calculation of sample size.

• Sample Size

  for the calculation of sample size.

• Sample Size of Study Incomes in a Region

  If the population standard deviation is known to be $5,000 what sample size would the economist need to use? Sample Size = 1000 Sample Size = 98 Sample Size = 9604 Sample Size = 6766 Please see attached file.

• Sample size and estimates

  Z Value -1.644853627 Calculated Sample Size 51.19564601 Result Sample Size Needed 52 The solution provides step by step method for the calculation of sample size.