Sketching the distribution of sample means

Reference no: EM1316405

A normal shaped distribution has μ= 80 and σ = 15.

a. Sketch the distribution of sample means for sample of n = 25 scores from this population.

b. What are the Z score values that form the bounded areas for the middle 95% of the distribution of sample means?

c. Compute the Z score for M = 89 for a sample of n = 25 scores. Is this sample mean in the middle 95% of the distribution?

d. Compute the Z score for M = 84 for a sample of n = 25 scores. Is this sample mean in the middle 95% of the distribution?

Reference no: EM1316405

Questions Cloud

Expected utility and total utility : Fewer potatoes are demanded when the price of rice has fallen from $ 0.25 to $0.10 cents per pound-The Molly Jock wants to buy a high definition television to watch the Olympic Greco roman wrestling competition in Beijing.

Finding out strength as well as weakness of organization : Finding out strength as well as weakness of organization using ratio analysis and what is causing this drop in net income

Computation of cost of goods sold : Computation of cost of goods sold from given data - The dollar value of its desired ending inventory is 25% of the following month's cost of goods sold.

Results support the psychologists theory : Utilizing the .05 level, do the results support the psychologists' theory. Elucidate your answer to somebody whom has never had a course in statistics.

Sketching the distribution of sample means : Sketch the distribution of sample means for sample of n = 25 scores from this population.

Finding coefficient : Finding coefficient

Show a diagram of the firm''s cost structure : Devising a trading strategy to generate arbitrage profits - Show a diagram of the firm's cost structure

Compute the correlation between y1 and y2 : Computation of Expectation, Variance and Covariance.Calculate the variances of Y1 and Y2.

Assessment of demand and supply for given price : Given the Demand curve for flyswatters Q = 500-50P, estimate the quantity demanded for the following prices.

User Account

All Pages