
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Suppose the weights of 3-month-old babies are normally distributed —baby boys with a mean of 14.4 pounds and a standard deviation of 1.7, and baby girls with a mean of 12.8 pounds and a standard deviation of 1.7.
What is the probability that a 3-month-old baby boy will weigh more than 16 pounds? (Round your answer to four decimal places.)
Answer:_____________________
You may need to use the appropriate appendix table to answer this question.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Similar questions
- A random sample of 100 selected from a population with a standard deviation of 10 yielded a mean = 225. The mean and the standard deviation of the distribution of the sample means are ____________. 225 and 10 225 and 1 225 and 0.1 22.5 and 1 22.5 and 10arrow_forwardsubpart. plz help with the last questionarrow_forwardAmericans on average drink 78 gallons of coffee individually each year, with a standard deviation of 13 gallons. Assume the population of amounts of coffee drank by Americans individually is normally distributed. If a sample of 15 Americans is taken, what is the probability that the sample mean amount of coffee drank individually will be more than 80 gallons? ? ( x̅ > 80 ??????? ) Round your final answer to four decimal places. = ______________arrow_forward
- A collection of numbers is Normal with a Mean of 20 and a Standard Deviation of 5; that is N(20,5). Boris’s score is 23.7 and Bela’s score is 26.2. What is the probability that a score is greater than Boris and less than Bela? Your final answer should be correct to 3 places after the decimal point. ________arrow_forwardThe Intelligence Quotient (IQ) test scores for adults are normally distributed with a population mean of 100 and a population standard deviation of 20. What is the probability we could select a sample of 80 adults and find the mean of this sample is less than 95? 0.0125 0.9750 0.4875 0.9476arrow_forwardWhat is the z-score of x = 3 if it is 2 standard deviation to the left of the mean? -3 -2 1 O 2 1.arrow_forward
- Data from a state indicate that scores on the SAT test are normally distributed with a mean of 994 and a standard deviation of 204. Scores on the ACT test are normally distributed with a mean of 20 and a standard deviation of 5.1. It is assumed that the two tests measure the same aptitude, but use different scales.If a student gets an SAT score that is the 77 percentile, find the actual SAT score. Round answer to a whole number. SAT score = What would be the equivalent ACT score for this student? Round answer to 1 decimal place. ACT score = If a student gets an SAT score of 1280, find the equivalent ACT score. Round answer to 1 decimal place. ACT score =arrow_forwardA population of scores has µ = 10 and σ = 2. If every score in the population is multiplied by 4, then what are the new values for the mean and standard deviation? Group of answer choicesarrow_forwardA species of bird has eggs that have an average weight of 92.5 grams with a standard deviation of 12.3 grams. The weights of the eggs are approximately normally distributed. ___________________ percent of the eggs weigh more than 85 grams. The probability is ___________________ that a randomly selected egg will weigh between 80 grams and 110 grams. Thiry-seven percent of the eggs weigh more than ___________________ grams. Half of the eggs weigh more than ___________________ grams.arrow_forward
- Page > of 3 The Environmental Protection Agency (EPA) fuel economy estimates for automobile models tested recently predicted a mean of 27.8 miles per gallon, with a standard deviation of 4.2 miles per gallon. Assume that a Normal model applies. Find the probability that a randomly selected automobile will average: 1. Less than 24 miles per gallon. 2. More than 19 miles per gallon. 3. Between 24 and 30 miles per gallon. 45°F Cloudy here to search (25arrow_forwardGentle Ben is a Morgan horse at a Colorado dude ranch. Over the past 8 weeks, a veterinarian took the following glucose reading from the horse (in mg/100 mg). 92 87 82 107 99 109 85 89 The sample mean x-bar is 93.8. Let x be a random variable representing glucose readings taken from gentle Ben. We may assume x has a normal distribution, and we know from past experience that the standard deviation = 12.5. The mean glucose level for horses should be mu = 85mg/100gl. Do these data indicate that gentle Ben have a overall average glucose level higher than 85? Use alpha = 0.05 A- Compute z value of the sample stasistic test. Round answer to 2 decimal places B- Find (or estimte) the P-Value . Round answer to 4 decimal places I get 1.99 for the z value but cannot come up with correct p-value.arrow_forwardThe variable "X" represents the age of students in a junior-level class. 10 Answer Probability Distribution of "X" 15 20 What's the Standard Deviation of this distribution? 25 O About 0.0 O About 2.0 O About 1.0 30 About 4.0 35 It's not possible to say, given the data available.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
- Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman

MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc

Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning

Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning

Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON

The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman

Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman