Find the sample size necessary to estimate the mean iq

Assignment Help Basic Statistics

Reference no: EM13608491

An IQ test is designed so that the mean is 100 and the standard deviation is 22 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 95% confidence that the sample mean is within 5 IQ points of the true mean. Assume that o = 22 and determine the required sample size.

(a) The required sample size is ___ (Round up to nearest integer)

(b) Is this sample size reasonable?

A. Yes. 75 IQ test scores is a fairly small number

B. No. 75 is a fairly large number

c. No. 75 is a fairly small number

D. Yes. 75 is a fairly large number

Reference no: EM13608491

Questions Cloud

Is this an observational study or an experiment why what : many studies have found that people who drink alcohol in moderation have lower risk of heart attacks than either

Find the mass of liquid formed if the volume under the : saturated water vapor is enclosed in a piston cylinder arrangement with a volume v initial 5 liters at a temperature

All materials are added at the beginning of the process the : department r had 4382 units in work in process that were 77 completed as to labor and overhead at the beginning of the

A carnot engine operates with an efficiency of 230 when the : a carnot engine operates with an efficiency of 23.0 when the temperature of its cold reservoir is 274 k. assuming that

Find the sample size necessary to estimate the mean iq : an iq test is designed so that the mean is 100 and the standard deviation is 22 for the population of normal adults.

Consider a monatomic gas of particles each with mass m what : a. consider a monatomic gas of particles each with mass m. what is vrms sqrtv2 the root mean square rms of the x

When job 711 was completed direct materials totaled 28635 : when job 711 was completed direct materials totaled 28635 direct labor 33688 and factory overhead 21897 respectively.

A company is working on the construction of two shopping : explain why there must be a mistake in each of the following statements1. the probability that a student will get an a

If the cylinder is to be protected against excessive : a hydrogen tank 25 cm in diameter and 80 cm in height is charged to 150 atmospheres at room temperature 25 c. a

User Account

All Pages