5. Test score for the Manila Science High school are normally distributed with a mean of 92 and standard deviation of 13. To qualify, candidates must score in the top 10%. Find the lowest possible score to qualify.
5. Test score for the Manila Science High school are normally distributed with a mean of 92 and standard deviation of 13. To qualify, candidates must score in the top 10%. Find the lowest possible score to qualify.
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...
Related questions
Concept explainers
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
Question
Solve Number 5
Transcribed Image Text:5. Test score for the Manila Science High school are normally distributed with a mean of 92 and standard
deviation of 13. To qualify, candidates must score in the top 10%. Find the lowest possible score to qualify.
6. Suppose that a population consists of the values 11, 13, 15, 17, and 20. Do the following:
(a) find the population mean, variance, and standard deviation;
(b) list all possible samples of size 2 selected without replacement; and
(c) find the mean, variance, and standard deviation of the sampling distribution.
7. The average price of a kilogram of ham is 1,300. Assume that the standard deviation is 150. If a random
sample of 30 one-kilogram packages is selected, find the probability that the sample will be less than 1,260.
8. The amount of time that sales managers devote to their jobs per week is normally distributed with a mean
of 55 hours and a standard deviation of 5 hours. What is the probability that 30 randomly selected sales
manager works for
(a) more than 56 hours per week?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.Recommended textbooks for you
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON