Suppose that samples of size n = 25 are selected at random from a normal population with mean 100 and standard deviation 10.What is the probability that the sample mean falls in the interval from ug – 2.00g to ug + 1.2og ?Express your answer to four decimal places (e.g. 0.9876).The probability is iStatistical Tables and ChareTextbook and Media

Given that X~N(μ= 100 , σ= 10 ) μ= 100 , σ= 10 , n= 25 Formula for Z-score Z=(X-μ)/σ

Answered: Suppose that samples of size n = 25 are…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Systolic Blood Pressure Assume that the mean systolic blood pressure of normal adults is 120 millimeters of mercury (mmHg) and the standard deviation is 5.6. Assume the variable is normally distributed. Round the answers to at least 4 decimal places and intermediate z-value calculations to 2 decimal places. Part 1 of 3 If an individual is selected, find the probability that the individual's pressure will be between 120 and 122.6 mmHg. P(120 < X < 122.6) = 0.1772 Part: 1 / 3 Part 2 of 3 If a sample of 29 adults is randomly selected, find the probability that the sample mean will be between 120 and 122.6 mmHg. Assume that the sample is taken from a large population and the correction factor can be ignored. P(120 < X < 122.6) = X
8
f the standard deviation of a normally distributed population is 22.0 and we take a sample of size 4, then the standard error of the mean is
A normal distribution has a mean of=100 with a SD= 20 . If one score is randomly selected from this distribution. What is the probability that the score will have a value between X=100 and X=130? NOTE: Using the z-score table attached
The round off errors when measuring the distance that a long jumper has jumped is uniformly distributed between 0 and 5.8 mm. Round values to 4 decimal places when possible. b. The standard deviation is c. The probability that the round a. The mean of this distribution is off error for a jumper's distance is exactly 0.3 is P(x-03)-d. The probability that the round off error for the distance that a long jumper has jumped is between 0 and 5 8 mm is PC1.7 x 5.2)- that the jump's round off error is greater than 1.76 is P(x > 1.76) Find the 81st percentile. e. The probability f P(x > 1.4 x > 0.6) h. Find the mnmum for the upper quartile.
Assume that adults have IQ scores that are normally distributed with a mean of μ= 100 and a standard deviation σ = 20. Find the probability that a randomly selected adult has an IQ less than 120. Click to view page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected a (Type an integer or decimal rounded to fo Standard Normal Table (Page 1) NEGATIVE z Scores Standard Normal (z) Distribution: Cumulative Area from the LEFT .00 .01 02 .03 .04 .05 .06 .07 .08 .09 -3.50 and lower .0001 -3.4 .0003 .0003 .0003 .0003 .0003 .0003 .0003 .0003 .0003 0002 -3.3 .0005 .0005 .0005 .0004 .0004 .0004 0004 .0004 0004 .0003 -3.2 .0007 .0007 .0006 .0006 .0006 .0006 0006 .0005 .0005 0005 -31 0010 .0009 .0009 .0009 .0008 .0008 .0008 .0008 .0007 .0007 -3.0 .0013 0013 .0013 0012 .0012 .0011 .0011 .0011 0010 0010 -2.9 .0019 .0018 0018 .0017 .0016 .0016 0015 .0015 .0014 .0014 -2.8 .0026 .0025 .0024 .0023 .0023 .0022 .0021 .0021 .0020 0019 -2.7 .0035 .0034 .0033 .0032 .0031…
Age of an animal (X) has the normal distribution with mean = 5, variance = 9; find the probability P(4 < X<8). %3D A. 0.555 B. Answer 0.572 C. Answer 0.495 OD. Answer 0.472
Plzz solved.
The weight of frogs in grams in a marsh population are normally distributed with mean (μ) equal to 23 grams and standard deviation (σ) equal to 1 gram. What is the probability that the mean ( ?¯) of a random sample of 4 frogs weighs less than 24 grams? Round your answer to three decimal places.

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