Sample size and estimates

Related BrainMass Solutions

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  Hence, the least sample size is n=1692. The solution estimates the number of Americans that own their house based on the sample size.

• Point estimates and margins of error

  The following posting helps with problems involving point estimates and margins of error. Calculations involve point estimates, margin of error and sample size.

• Sample Size for Population Proportion

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  THis gives a sample of sufficient size for the desired reliability and interval width since it yields the maximum sample size.

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• Hypothesis Testing: Independent Sample t Test

  Details t Test for Differences in Two Means Data Hypothesized Difference 0 Level of Significance 0.05 Population 1 Sample Sample Size 10 Sample Mean 1220 Sample Standard Deviation 550.3534218 Population 2 Sample Sample Size 10 Sample

• Determining Minimum Sample Size

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• What sample size is necessary?

  It estimates that 30 percent of customers do so. It wants the results of its survey to be accurate within 5 percent, and it wants to be 95 percent confident of the results. What sample size is necessary? The excel file solution is attached.