Determining two sided interval

Reference no: EM13105188

Assume a very large normally distributed population of scores on a test with mean 77 and standard deviation 7.

a. Find the two sided interval that includes 90% of this population

b. Suppose a sample of 40 members is randomly selected from this population. Find an interval (two sided) that provides a 5% error in the estimation of this sample.

c. What is this interval for a random sample of 300 members?

Reference no: EM13105188

Questions Cloud

By how much are the electrons deflected : (a) In what direction are the electrons deflected? toward the negative plate toward the positive plate (b) By how much are the electrons deflected after passing through these plates?

Confidence interval-difference in proportion : Borst et.al. investigated the relation of ego development, age, gender, and diagnosis to suicidality among adolescent psychiatric inpatients.

Nonaka theory of knowledge creation : Compare the models and information found with Nonaka's Theory of Knowledge Creation. Consider ways knowledge creation works in an organizations.

What is the magnitude of the total flux : hat is the magnitude of the total flux through the five non-shaded faces.

Determining two sided interval : Assume a very large normally distributed population of scores on a test with mean 77 and standard deviation 7.

Explain demonstrating ability in reasoning : A child is told that Bob is older than Sally, and Sally is older than Fred. When enquired, "Who is older, Bob or Fred?" child replies, "Bob." This child is demonstrating __________ ability.

Discuss the key considerations in the choice of outsourcing : Illustrate what are the key challenges in maintaining a relationship like the one among LEGO and Flextronics? Discuss the key considerations in the choice of outsourcing /off shoring production.

How a uniform electric field might used to measure distance : Describe how a uniform electric field might be used to measure distance. Hint: In the parallel electrode arrangement, what parameter(s) varied with distance between the electrodes and what parameter(s) stayed constant?

Discussion on the sequence of construction : A contracting company has been awarded a contract for converting 10 miles of a high-traffic gravel road into a hot-mixed asphalt pavement. The contract includes the tasks of reshaping and leveling the original road.

User Account

All Pages