Determine mean and standard deviation for population

Reference no: EM13111950

1. For population with µ = 100 and σ = 10
A) Determine z- score for each of the following X values: X = 105 X = 120 X = 130 X = 90 X = 85 X = 60.

B) Determine the score ( X value) that corresponds to each of the following z scores: z = -1.00 z = -0.50 z = 2.00 z =0.70 z = 1.50 z = -1.50

2. For the population with mean of M=85 a score of x=90 corresponds to z= 0.50. Determine the sample standard deviation?

3. In the population of exam scores score of X=88 corresponds to z=+2.00 and score of X=79 and corresponds to z=-1.00. Determine mean and standard deviation for the population. Draw the distribution and locate two scores on the sketch.

Reference no: EM13111950

Questions Cloud

Find the prediction interval : what portion of variation in stock price percentage change is explained by the percent change in profit and what is the approximate predicted value for tips if the total bill is $100?

What is the average surface area of the microcarriers : You have a cell suspension containing 4 * 10^5 cells/ml and want to seed these cells on microcarriers at a density of 1* 10^4 cells/cm^2. The average diameter of the microcarriers is 157.5um (the diameter range supplied by the vendor is 115-200um)..

What is the ratio of a/g : A particular animal's DNA has been determined to have 20% adenine.

Suggesting globally sustainable options for modern business : A new global sustainable business and industry incubator network is expanding into a Paris suburb. They want to make the newly acquired building and operations more environmentally friendly.

Determine mean and standard deviation for population : Determine mean and standard deviation for the population. Draw the distribution and locate two scores on the sketch.

Critical value approach to hypothesis testing : The waiting time to place an order at a branch of a fast-food chain during the lunch hour has had population mean of 3.55 minutes, with a population standard deviation of 1.1 minute.

Explain waste management plan for protecting environment : You are the chief environmental officer of an industrial operation of your choosing. Describe your operation, its different components or stages, the materials used and the type of wastes generated.

Identify the p-value : Suppose a study is conducted to test the claim, at a 0.01 significance level, that less than 75% of college students spend less than $250 per semester on text books. A survey of 700 students found that 71% spent less than $250 per semester on text..

Determine concentration of toluene in the tank : You use a properly calibrated explosimeter to measure the flammable hazard inside a tank that contained toluene and may still have some residual product a. inside.

User Account

All Pages