Z-score corresponding to values

Assignment Help Basic Statistics

Reference no: EM13106422

1) Compute the z-score corresponding to each of the following values of x:

a. x=40, s=5, x (with line over) = 30
b. x=90, (weird u for subtracting x with line over) = 89, (weird o with line over it for dividing the result by s) = 2
c. (weird u for subtracting x with line over) = 50, (weird o with line over it for dividing the result by s) = 5, x = 50
d. s=4, x=20, x (with line over) = 30

2) What is the 50th percentile of a quantitative data set called?

3) Suppose that 40 and 90 are two elements of a population data set and that their z-scores are -2 and 3, respectively. Using only this information, is it possible to determine the population's mean and standard deviation? If so, find them. If not, explain why its not possible.

Reference no: EM13106422

Questions Cloud

Determining z-score of departmental store : A department store, on average, has daily sales of $29,876.76. The standard deviation of sales is $1000.00. On Tuesday, the store sold $34,893.71 worth of goods.

Differentiate between avoiding risk and accepting risk : Differentiate between avoiding a risk and accepting a risk. Indicate the implications to a travel agency.

What is its initial speed as it leaves the ground : A startled armadillo leaps upward rising 0.550 m in the first 0.203 is. (a) What is its initial speed as it leaves the ground? m/s (b) What is its speed at the height of 0.550 m? m/s (c) How much higher does it go?

What is the vertical component of the force : Since you are pulling up a little on the crate, the floor doesn't have to support as much weight. When you are pulling up on the rope as described above, what is the upward force that the floor exerts on the crate.

Z-score corresponding to values : Compute the z-score corresponding to each of the following values of x: What is the 50th percentile of a quantitative data set called?

Explain behavior using humanistic and social perspectives : Jasper, often become overly critical of others. Use psychoanalytic, humanistic and social -cognitive perspectives to give three contrasting description of his behavior.

Interpret the regression equation : State carefully the ceteris paribus assumption in this case. Do you think this simple regression of Y on X satisfies that assumption? Why or why not?

How financial formula aids in decision making process : Consider yourself the CEO of a major healthcare organization. For several years you have taken a small not-for-profit hospital from mediocre financial status to elite status in a growing regional environment.

Determining z test statistics and scores : What differentiates a z test statistic for a population from the z statistic for a sampling of means? Why is there a difference? Consider a normal population with ? = 43 and ? = 5.2. Calculate the z-score for an x ? of 46.5 from a sample of size 16.

User Account

All Pages