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I'm trying to find the mean,range,mode and standard deviation of a sample. Basic statistics in Excel
Solved by B. W. in 25 mins
use the excel sheet name part 2 to answer the question and round the answer to 4 decimal places . Information from the American institute of insurance indicates that mean amount of life insurance per household in the united states is $100,000 with a standard deviation of $40,000 assume the population distribution is normal. A random sample of 100 household is taken What is the probability that sample mean will be more than $120,000? What is the probability that sample mean will be between $100,000 and $120,000?
Solved by B. Y. in 21 mins
Use the RANDBETWEEN function in Microsoft Excel to select three simple random samples of 10, 50 and 500 days from the population. Using just your samples, calculate the mean, median, standard deviations and mode if applicable for each random sample. [10%]. Compare these outcome figures. How do the mean and SD change with sample size? [10%].
Solved by G. Q. in 15 mins
Now use the RANDBETWEEN function in Microsoft Excel to select two simple random samples of 10 days sample and 500 days sample from the population. Using just your samples, calculate the mean, median, standard deviations and mode if applicable for each random sample. [20%].
Solved by D. S. in 26 mins
The sheet names Baseball players, contains salary data on all major league baseball players for year 2015. Generate a simple random sample of size 30 from this population. Calculate the population mean of annual salary. Then calculate the sample mean of annual salary. What is the sampling error.
Solved by O. B. in 21 mins