A researcher believes that 51% of people who grew up as the only child have an IQ score over 100. However, unknown to the researcher, this figure is actually 50%, which is the same as in the general population. To attempt to find evidence for the claim, the researcher is going to take a random sample of 400 people who grew up as the only child. Let p be the proportion of people in the sample with an IQ score above 100. Answer the following. (If necessary, consult a list of formulas.) (c)Compute an approximation for , which is the probability that there will be 51% or more people with IQ scores over 100 in the sample. Round your answer to four decimal places.
A researcher believes that 51% of people who grew up as the only child have an IQ score over 100. However, unknown to the researcher, this figure is actually 50%, which is the same as in the general population. To attempt to find evidence for the claim, the researcher is going to take a random sample of 400 people who grew up as the only child. Let p be the proportion of people in the sample with an IQ score above 100. Answer the following. (If necessary, consult a list of formulas.) (c)Compute an approximation for , which is the probability that there will be 51% or more people with IQ scores over 100 in the sample. Round your answer to four decimal places.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A researcher believes that 51% of people who grew up as the only child have an IQ score over 100. However, unknown to the researcher, this figure is actually 50%, which is the same as in the general population.
To attempt to find evidence for the claim, the researcher is going to take a random sample of 400 people who grew up as the only child. Let p be the proportion of people in the sample with an IQ score above 100.
Answer the following. (If necessary, consult a list of formulas.)
(c)Compute an approximation for , which is the
Transcribed Image Text:Below is a graph of a normal distribution with mean µ = −1 and stan
from this distribution that is between −7 and 3.
0.2+
Shade the corresponding region under the standard normal curve below
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