In a certain community, eight percent of all adults over age 50 have diabetes. If a health service in this community correctly diagnosis 95% of all persons with diabetes as having the disease and incorrectly diagnoses ten percent of all persons without diabetes as having the disease, find the probabilities that: The health service will diagnose an adult over age 50 as having diabetes. A person over 50 diagnosed by the health service as having diabetes actually has the disease.

Q: Suppose an insurance company has three types of customers-high risk, medium risk and low risk. From…

A: Given that: 25% of customers are high risk 25% of customers are medium risk 50% of customers are low…

Q: According to a study, 70% of K-12 schools or districts in a country use digital content such as…

A:

Q: According to a study, 74% of K-12 schools or districts in a country use digital content such as…

A:

Q: interviewed were unaware that maintaining a healthy weight could reduce the risk of stroke. If 20…

A: Given : Probability of success,p = 0.90

Q: Of the patients at a cardiac rehabilitation centre, 37% lead a sedentary lifestyle and have had a…

A: 37% lead a sedentary lifestyle and have had a heart attack82% of the patients lead a sedentary…

Q: According to a study, 83% of k-12 schools or districts in a country use digital content such as…

A: Probability:   The ratio of the number of favorable outcomes to certain event and total number of…

Q: According to a study, 79% of K-12 schools or districts in a country use digital content such as…

A: Let,Event D = Schools or districts in a country use digital content.Event C = Schools use digital…

Q: Eighty-two % of trees planted by a local landscaping company survive. In a random sample of 200…

A: Solution

Q: In one study, researchers at a clinic looked at more than 120,000 patients enrolled in 14…

A: Given Information:  Researchers at a clinic looked at more than 120,000 patients enrolled in 14…

Q: The mayor of a town estimates that 65% of the residents in the town favor a raise of taxes to…

A: Given information: p=The probability of residents in the town favor a raise =65%=0.65 400 people…

Q: Eight percent of Americans have a master’s degree. If five Americans are selected at random, what is…

A:

Q: In a StarCraft campaign, 30% of the population are Zerg, 50% are Terran, and 20% are Protoss. In an…

A: Given,30% of the population are Zerg. That is, P(Zerg) = 30% = 0.3050% of the population are Terran.…

Q: Eight percent of Americans have a master’s degree. If five Americans are selected at random, what is…

A: Let X represent random variable   n=5 p=0.08   X~ binomial (5, 0.08)

Q: Twenty percent of all undergraduates at a university are chemistry majors. In a random sample of…

A: Given information:Population proportion (p) = 20%                                         p =…

Q: In a city with 300,000 inhabitants, 55% of the population are men and 45% are women. If 40% of the…

A: PM=0.40PW=0.30 Where M and W are the events of the men and women who prefer to use public…

Q: Of the cartons produced by a​ company, 10​% have a​ puncture, 8​% have a smashed​ corner, and 1.3​%…

A:

Q: Human blood types are typically classified by the ABO blood group and the Rh blood group systems.…

A: First let us create a frequency table of the blood types from the given Venn diagram.   A B AB O…

Q: At a local​ college, four sections of economics are taught during the day and two sections are…

A:

Q: ts have allergies.  A test for allergies correctly diagnoses the presence of an allergy in 85% of…

A: Define the following events : A: Proportion of people having allergy B: proportion people which do…

Q: Suppose that 15% of a population is red-headed, and 10% of the same population is left-handed. If…

A: It is known that, if two events A and B are independent, then P(A and B) = P(A)P(B).

Q: An automotive plant produces three types of vehicles: Sedan, SUV and Sports. 56% of the production…

A: Given information: The probabilities are as given below: P (Sedan) = 56% = 0.56 and P (SUV) = 20% =…

Q: A researcher want to know if there is a relationship between sleep and anxiety.  The researcher…

A: For random variables X and Y the value of SP is, SP = Σ (x – x̅)(y – ȳ), where x̅ is the mean of X…

Q: Suppose a basketball player has a free throw success rate of 75%. If she takes 4 free throws in a…

A: given that, a basketball player has a free throw success rate of 75%.

Q: A zookeeper feeds a group of animals daily. On any given day, there is a 40% chance of feeding…

A: The probability of feeding bananas is 0.40.The probability of feeding apples is 0.30.The probability…

Q: Out of 800 families with four children each, what percentage would be expected to have no girls?…

A: Given that, Out of 800 families with four children each and  boys and girls are equally likely to…

Q: In a sample of 1500 adult U.S. citizens, 690 said that Donald Trump was the worst president in U.S.…

A: Sample of size(n)=1500X=no.of adults who said Donald trump was the worst president in…

Q: Suppose a university has a student body of 10,000 students, of whom 60% are undergraduate students…

A:

Q: Research has shown that approximately 1 woman in 700 carries a mutation of a particular gene. About…

A: We are given,Research has shown that approximately 1 woman in 700 carries a mutation of a particular…

Q: An agricultural cooperative claims that 85% of the watermelons shipped out are ripe and eady to eat.…

A:

Q: n 2000, 86% of all Caucasians in the United States, 77% of all African-Americans, 77% of all…

A: It was stated that in 2000, 86% of all Caucasians in the United States, 77% of all…

Q: A survey reports that 53% of college students use Google as their search engine. If 100 students of…

A: Given that n=100 p= 0.53 q= n-p=0.47 μx= n*p= 53 Standard deviation= σ= sqrt(n*p*q)=4.991   Add…

Q: Exercise 6.5 Consider a fully discrete 10-year term insurance issued to a select life aged 50, with…

A: Given      Insurance type : Term insurance     Age : 50 years Sum insured : $100000…

Q: According to a study, 74% of K-12 schools or districts in a country use digital content such as…

A: Given datan=10x=5p∧=xn=510=0.5Po=74%=0.74

Q: Of the cartons produced by a​ company, 7​% have a​ puncture, 10​% have a smashed​ corner, and 1.1​%…

A:

Q: In a population of 10,000, there are 5000 nonsmokers, 2500 smokers of one pack or less per day, and…

A: The number of non-smokersThe number of smokers of one pack or less per dayThe number of smokers of…

Q: You have just talked to a randomly selected person who was wearing a red shirt, but forgot to ask…

A:

Q: An animal shelter had a 65 % adoption rate for puppies. Of all puppies in the shelter , 75% live to…

A:

Q: Employment data at a software company reveal that 50% of employees have a computer science degree,…

A: Obtain the probability that a randomly chosen employee is female or has a computer science degree.…

Q: A car dealership sells two types of cars: sedans and SUVs. The dealership conducted a survey and…

A: Answer Calculation:1. Total number of customers surveyed = 2002. Number of customers who purchased…

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.