Normal Distribution Tech: Problem 9Previous ProblemProblem ListNext Problem(1 point) Suppose that X is normally distributed with mean 90 and standard deviation 14.A. What is the probability that X is greater than 109.46?Probability =B. What value of X does only the top 18% exceed?X =%3DNote: You can earn partial credit on this problem.Preview My AnswersSubmit AnswersYou have attempted this problem 1 time.Your overall recorded score is 0%.You have unlimited attempts remaining. Previous ProblemProblem ListNext Problem(1 point) Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. Thestudents kept track of many lifestyle variables including how many hours of sleep obtained on a typical day.Researchers found that visually impaired students averaged 9.2 hours of sleep, with a standard deviation of 2.24hours. Assume that the number of hours of sleep for these visually impaired students is normally distributed.(a) What is the probability that a visually impaired student gets less than 6.4 hours of sleep?answer:(b) What is the probability that a visually impaired student gets between 6.2 and 8.84 hours of sleep?answer:(c) Thirty percent of students get less than how many hours of sleep on a typical day?answer:hoursNote: You can earn partial credit on this problem.Preview My AnswersSubmit AnswersYou have attempted this problem 0 times.You have unlimited attempts remaining.

The concept used here is Normal distribution and using the standard normal table.

(1 point) Suppose that X is normally distributed with mean 90 and standard deviation 14. A. What is the probability that X is greater than 109.46? Probability = B. What value of X does only the top 18% exceed? X =

(1 point) Suppose that X is normally distributed with mean 90 and standard deviation 14. A. What is the probability that X is greater than 109.46? Probability = B. What value of X does only the top 18% exceed? X =

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

See similar textbooks

Related questions

Q: 42. A large national producer of appliances has traced customer experience with a popular toaster…

Q: According to Reader's Digest, 47% of primary care doctors think their patients receive unnecessary…

Q: why we developed and history of half logistic distribution in probability? i need regarding help…

A: Half logistic distribution is a probability distribution that is used to model the probability of an…

Q: i. What is your next action, if you obtain a perfect discriminatory test result (where both false…

A: Hypothesis testing is a vital process in inferential statistics where the goal is to use sample data…

Q: Discuss the different types of probability sampling designs and briefly explain how these differ…

A: In statistics, probability sampling refers to the sampling method in which all the members of the…

Q: maximize P=-10x+35y subject to 2x+3y>=30, 2x+y=0

Q: 1. Statistical process control, hypothesis testing, and control charts Consumers value prompt…

A: Process control can be defined as a process of monitoring a process and controlling it with an aim…

Q: suppose that Motorola uses the normal distribution to determine the probability of defects and the…

A: THE PROCES DISTRIBTUION GARPH IS AS ABOVE The process mean is 10 and the process S.D is 0.16So ,(…

Q: Explain the means and the use of variance and the Standard Deviation. Support your answer with…

A: Variance and standard deviation are both statistical measures that provide information about the…

Q: Explain the kind of changes occur in the coefficient of a non variable while making changes in the…

A: Sensitivity analysis investigates changes in the coefficients of an ou pas explore things by changes…

Q: Please provide the probability as Probability has not been provided for question b and c. As you…

A: Here, I would determine the expected activity duration, standard deviation and variance for each…

Q: Emenyi Company Limited is considering using Markov analysis to analyze brand switching between three…

A: Given information: The transition matrix of moving between the brands of each month is given,

Q: Given a normal distribution with μ= 105 and σ = 20, and given you select a sample of n = 16,…

A: According to central limit theorem, the distribution of sample means approximates a normal…

Q: From several years’ records, a fish market manager has determined that the weight of deep sea bream…

A: The z-score is used to measure the statistical significance of a data point. The z-score is…

Q: Risk analysis intervals are preferred over chance and consequence numbers for unknown reasons.

A: "The solution has been provided in a generalized Manner." Risk analysis is a critical aspect of…

Q: Using the given table compute for Mean Absolute Deviation (MAD). Using the given table compute for…

A: Forecasting is the process of prediction in which sales demand is estimated using historic…

Q: ased on the above, the test statistic is equal to? (Round answer to two decimal places ex. 2.09)

A: In the question, we have the following data, Hypothesized mean=22 They have considered 92 samples,…

Q: 3. Consider the following non-stationary process: 3t = 7o+y₁t+24. with uput-1+ and ei.i.d. ².…

Q: The tracking signal is the: mean absolute percent error (MAPE). cumulative error. standard error of…

A: Option 1: - Mean absolute percent error(MAPE) is the ratio of the difference between actual value…

Q: Write examples of different types of probability and non-probability sampling? Give practical…

A: Definition of Probability Sampling:- In statistics, probability sampling refers to the sampling…

Q: Using the Naive method, the Mean absolute Deviation (MAD) is

A: Following to be noted which is applicable for Naive method: ft = At-1 Ft = Forecast for period t…

Q: Fortune magazine conducted a survey to learn about the subscribers in the United States and Canada.…

A: Number of respondents = 816 responses Required range = $100,000 - 249,999 Percent Frequency = 20…

Q: The San Diego Freeway 405 in Southern California showed the number of accidents during the past 6…

A: Given, The table for month and accidents. Least square regression line is given by, Y = b * X + a

Q: Mal-VX Present x Ellucian x | To Do A X Quizzes Xx CA priva x1b Home]…

A: Detailed explanation: Step-by-Step Explanation1. Defining Binary VariablesFirstly, we define binary…

Q: 4. A credit rating company recommends granting of credit cards based on several criteria. One is…

A: The probability value for Z (-1.4583), according to the cumulative probability table, the…

Q: The mean is best defined as the: O Value that appears in a distribution most often. O Middle value…

A: In statistics, the mean is one of the essential measures of central tendency used apart from mode…

Q: Tyler Apiaries sells bees and beekeeping supplies. Bees (including a queen) are shipped in special…

A: Target weight of the package = 12 Kgs Historically, Tyler's shipments have weighted on an average=…

Q: Q7. A rigid vessel having a volume of 0.05 m³ initially contains carbon dioxide gas at temperature…

A: The problem involves a rigid vessel initially containing carbon dioxide gas at an unknown pressure…

Q: Bo Using data from 50 workers, a researcher estimates Wage = ẞe + B₁Education + B2Experience + B3Age…

A: Given:Intercept coefficient β0 = 7.17Education coefficient β1 = 1.81Experience coefficient β2 =…

Q: 0.9 0.8 0.7 0.6 [ Select ] 0.5 V 0.4 Uniform distribution 0.3 0.2 Normal distribution 0.1…

A: In a uniform distribution, the curve is plotted such that the cumulative probability does not change…

Q: Choose the correct option that best represents the pattern observed in the time-series graph. Ocean…

A: A time series graph is a line graph that is made after plotting data values as points and then…

Q: technique? a. Convenience sampling b. Quota sampling c. Judgement sampling d. Cluster sampling

A: The question is related to Non-probability sampling technique. Quota sampling may be defined as…

Q: (29) Please calculate the standard deviation for the following. Please round to 2 decimals (if…

A: To calculate the standard deviation, we need to follow these steps:Calculate the expected return…

Q: From the following time series data of sale project the sales for the next three years. Year 2001…

A: Given sales data- Years Sales (In 000's) 2001 80 2002 90 2003 92 2004 83 2005 94 2006…

Q: Problem 13-2 (Algo) A metal fabricator produces connecting rods with an outer diameter that has a 1…

A: Process capability index is a statistical measure of process capability. It is measure the ability…

Q: Suppose you sample one value from a uniform distribution with a = 0 and b=20. a. What is the…

A: a) Let's break down the steps for calculating the probability that the value will be between 12 and…

Q: Take Quiz this should be raised promptly to your subject teacher. Failure to aanere to the make your…

A: Step 1: Given that, Step 2: Since, R3,R4 and (R5+R6) are in parallel. Find the equivalent…

Q: Explain these term Mixture of extreme value distribution. Modelling complex relationship between the…

A: Mixture of extreme value distributions is a statistical concept that refers to the combination of…

Q: Bias is a synonym for Mean Absolute Deviation.

A: The mean absolute deviation of the samples is the biased estimator of the population. To get an…

Q: What is the meaning of x ̅ ~ N (50, 2)? 1. The Sampling distribution is distributed normally…

A: The notation x ̅ ~ N (50, 2) is used in statistics to denote a specific type of distribution. Here,…

Q: A certain reagent is created to test for an infectious disease. The test has an accuracy rate of p =…

A: Given : Accuracy rate of p = 90%, People are infected q = 5%

Q: For the next 6 numbers: Refer to the Management Scientist output of a maximization LP problem. The…

A: Given- Sensitivity Report-

Concept explainers

Forecasting in Business

Forecasting is the process of predicting the future based on the past and the present data and circumstances. In other words, forecasting is the act of making a detailed analysis of future events based on the decisions made in the past as well as the present. Forecasting plays a very important role in operational management as it helps in planning and decision-making. It is not only important for the success of a business but also contributes to individual growth and success. Many business organizations or companies have failed due to the shortcomings of their forecasting.

Question

Normal Distribution Tech: Problem 9
Previous Problem
Problem List
Next Problem
(1 point) Suppose that X is normally distributed with mean 90 and standard deviation 14.
A. What is the probability that X is greater than 109.46?
Probability =
B. What value of X does only the top 18% exceed?
X =
%3D
Note: You can earn partial credit on this problem.
Preview My Answers
Submit Answers
You have attempted this problem 1 time.
Your overall recorded score is 0%.
You have unlimited attempts remaining.

Previous Problem
Problem List
Next Problem
(1 point) Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. The
students kept track of many lifestyle variables including how many hours of sleep obtained on a typical day.
Researchers found that visually impaired students averaged 9.2 hours of sleep, with a standard deviation of 2.24
hours. Assume that the number of hours of sleep for these visually impaired students is normally distributed.
(a) What is the probability that a visually impaired student gets less than 6.4 hours of sleep?
answer:
(b) What is the probability that a visually impaired student gets between 6.2 and 8.84 hours of sleep?
answer:
(c) Thirty percent of students get less than how many hours of sleep on a typical day?
answer:
hours
Note: You can earn partial credit on this problem.
Preview My Answers
Submit Answers
You have attempted this problem 0 times.
You have unlimited attempts remaining.

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!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Problem 9

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.

Similar questions

You are a food specialist in a company that specializes inrefrigerated delicacies, and one of your brands requires beingmaintained at a temperature of 5°C. You determine averagewater activity (aw) at this temperature to be 0.2. One day, you are informed that the cooling systems onone of the delivery trucks carrying your company’s productsmalfunctioned while en route to its destination and it would notbe fixed until the next delivery. The driver has informed you thatthe temperature in the delivery bay of the truck is averaging55°C. You estimate a heat of sorption (Q) of 19 kJ/mol. Calculate the water activity of the brand at this elevatedtemperature and comment on it’s integrity. Should the deliverystill push through? Or should the products be recalled anddisposed
What is the meaning of x ~ N (50, 20)? 1. Sampling distribution of x is distributed with a mean of 20 and a standard deviation of 50 2. x-bar is normally distributed with a mean of 20 and a standard deviation of 50 3. x is normally distributed with a mean of 50 and a standard deviation of 20 4. Sampling distribution of x is distributed with a mean of 50 and a standard deviation of 20
4. ABC Dog Food Company located in Ottawa sells large bags of dog food to warehouse clubs. ABC uses an automatic filling process to fill the bags. Weights of the filled bags are approximately normally distributed with a mean of 50 kilograms and a standard deviation of 1.25 kilograms. (a) What is the probability that a filled bag will weigh less than 49.5 kilograms? (b) What is the probability that a randomly sampled filled bag will weigh between 48.5 and 51 kilograms? (c) What is the minimum weight a bag of dog food could be and remain in the top 15% of all bags filled? (d) ABC is unable to adjust the mean of the filling process. However, it is able to adjust the standard deviation of the filling process. What would the standard deviation need to be so that 2% of all filled bags weigh more than 52 kilograms?
A6
Using the cumulative frequency distribution below select the appropriate description 3the distribution of weight Weight lbs 101-120 cumulative frequency 2 Weight lbs 121-140 cumulative frequency 5 Weight lbs 141-160 cumulative frequency 10 Weight lbs 161-180 cumulative frequency 18 Weight lbs 181-200 cumulative frequency 26 Uniform Bell shaped Skewed right Skewed left
A and b please
The matrix of transition probabilities below deals with brand loyalty to CoronaBits and CovidBits junk food. Current Next Purchase Purchase CoronaBits CovidBits CoronaBits .75 25 CovidBits 20 .80 What are the steady state probabilities? O [3/4 1/4] O [ 2/3 1/3] O [4/9 5/9] O [1/2 1/2]
Attendance at Orlando's newest Disneylike attraction, Lego World, has been as follows Quarter Guests (in thousands) Quarter Summer Year 2 Winter Year 1 58 99 Fall Year 2 149 Winter Year 3 Spring Year 1 Summer Year 1 Fal Year 1 Winter Year 2 75 Spring Year 3 63 Summer Year 3 Spring Year 21 82 Fall Year 3 Based on the given attendance, the seasonal indices for each of the seasons are (round your responses to three decimal places) Season Index Winter Spring Summer Fall 0000 Guests (in thousands) 125 54 99 146 210 99
The historical demand for four period is 62, 60, 72, and 67 respectively. Using the Naive method, the Mean absolute Deviation (MAD) is Select one: a. None is correct b. -10.67 C. 10.67 • d. 6.33 e. 14.67
A decision in which the manager of a firm decides on only the whole number value of a control variable. * marginal decision discrete decision continuous decision incremental decision
Fill in the P(X=x) values to give a legitimate probability distribution for the discrete random variable X, whose possible values are -3, 0, 4, 5, and 6. Value x of X P (X = x) -3 0 0.23 5 0.17 6 0.30
(Use an excel file to show formulas used)