jorge327js jorge327js

18-11-2022
Mathematics

Answered

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
90% confidence that the sample mean is within 5 IQ points of the true mean. Assume that o=22 and determine the
required sample size using technology. Then determine if this is a reasonable sample size for a real world calculation.
The required sample size is
REED
(Round up to the nearest integer.)

Answer :

Other Questions

Urgent .. Suppose that a national testing service gives a test in which the results are normally distributed with a mean of 550 and standard deviation of 85. If

On a farm, it took an average of 50 minutes for new workers to learn how to use a new machine. Recently a new agricultural machine was introduced. The farmer wa

The time (in minutes) between telephone calls at an insurance claims office has the exponential probability distribution: f(x) = 0.80e-0.80z a. What is the mea

How can I solve this! Please and thank you!! Consider the null hypothesis H0: μ = 100. Suppose that a random sample of 35 observations is taken from this popula

If P is true, Q is false, R is true, and S is false, determine the truth value of the following. ~[P v (Q v R)] >~ (SVP) O a. True O b. False

√x + y ≤ 7 x - y ≤ 3

What is an equation of the line that passes through the points (4, -2)(4,−2) and (8, 3)(8,3)

Question 13 Let f(x) = x³ - 2x - 5 and assume that f(2)= -1 and f(3) = 16. What does the Intermediate Value Theorem say about this? A. The graph of f stays unde

a positive integer is 5 less than another. If the sum of the reciprocal of the smaller and twice the reciprocal of the larger is 4/3, then find the two integers

On May 2, you receive your bank statement showing a balance of $1,641.18. Your checkbook shows a balance of $1,427.15. Outstanding checks are $167.31, $245.66,