Data from a large national study reports that 10% of pregnant women deliver prematurely.  A local obstetrician is seeing 16 pregnant women in his next clinic session. What is the probability that none will deliver prematurely? What is the probability that fewer than 3 will deliver prematurely? What is the probability that none will deliver prematurely if in fact the true percentage who deliver prematurely is 5.5%? Interpret findings compared to part a. If the true percentage is 10% and this obstetrician has 146 pregnant women under his care, how many would be expected to deliver prematurely?

Q: Based on a recent study in a manufacturing company, 40% of employees older than 30 years own a car…

A: It is given that, 40% of employees older than 30 years own a car and a house.

Q: You are analysing a factory. Stage 3 of the manufacturing process has a 15% chance of finishing on…

A:

Q: Hospital records show that of patients suffering from a certain disease, 35% die of it. What is the…

A:

Q: It has been shown by claims that have been made that 20% of parcels arrive damaged when using an…

A:

Q: In a recent year, the Better Business Bureau settled 75% of complaints they received. You have been…

A: Given, in recent year, the Better Business Bureau settled 75% of the complaints they have received.…

Q: My friend Mary lies 20% of the time. She calls me and says that it's currently raining in Amsterdam.…

A: Since Mary lying and its raining in Amsterdam are two independent events

Q: Suppose 1% of woman develop breast cancer. Physicians report that a mammogram accurately classifies…

A: This problem can be solved using Bayes probability theorem. According to this theorem, if A nd B are…

Q: Ten patients participated in a study to see if vitamin C can prevent colds. If each patient has a…

A: It is given that 10 patients participated in a study to see if vitamin C can prevent colds. The…

Q: It is reported that 60% of people are non-smokers. A non-smoker has a 10% chance of infected by the…

A: Given information, P(non-smoker)=60%=0.60 P(smoker)=1-0.60=0.40 P(infected| non-smoker)=0.10…

Q: In a Survey, 85% of the people interviewed were unaware that maintaining a healthy weight could…

A: Givenp=0.85n=20Let "x" be the no.of people are unware that maintaining a healthy weightcould reduce…

Q: Although studies continue to show diabetes leads to significant health problems, 20% of adults in…

A: Introduction: Denote X as the number of sampled adults who have diabetes. Assume that the n = 250…

Q: The average monthly grocery bill for an individual is normally distributed with a mean of $85 and a…

A: Solution: Let X be the average monthly grocery bill for an individual is normally distributed with…

Q: What is the probability that the two sample proportions will differ by more than

A: From the given information, p=6.2%=0.062p1=10.2%=0.102n1=500p2=8.3%=0.083n2=200

Q: The Statistical Bulletin reports that 22.5% of the households in the country are inhabited by one…

A: See below hand written answer: hgyukj

Q: Suppose a recent study determined that 29% of Americans favorite ice cream flavor is If a sample of…

A:

Q: Industrial accidents can be very costly to both workers and employers. Prior to a safety campaign at…

A: Obtain the probability of at most one accident occurs in the campaign.   The probability of at…

Q: what is the probability that greater than 12.72% of them ended up dropping out?

A: Let p be the dropout rate of high school. Given that, Population proportion (p) = 10.28% = 0.1028 q…

Q: A study shows that 15% of adult males don’t wash their hands in a public restroom. We take a random…

A:

Q: It is known that 20% of people ride public transport without paying for it. We talk to 68 people who…

A: From the provided information, 20% of people ride public transport without paying for it that is…

Q: On a five-day vacation, the forecast is a 55% chance of rain every day. What’s the probability that…

A: Let p denote the probability of rain every day = 0.55 Let n be days in an vacation = 5 Let the R.V X…

Q: Last week, a flower delivery business conducted a survey on customer happiness. They found that 51%…

A:

Q: In an experiment, the probability of getting the desired outcome is 0.62. What is the probability of…

A: The probability of getting the desired outcome is 0.62.

Q: Assume that hybridization experiments are conducted with peas having the property that for…

A: As per our guidelines we are suppose to answer only one question. Given,n=10p=0.75A random variable…

Q: Color blindness has a rate of about 5% among males.  If you pick a group of 15 males, what is the…

A:

Q: In an experiment, the probability of getting the desired outcome is 0.48. What is the probability of…

A: It is given that the probability of getting the desired outcome is 0.48 We have to calculate the…

Q: Approximately 30% of obese patients develop diabetes. If a physician sees 10 patients who are obese,…

A:

Q: The drop out rate of female students from computer science programs in their first year is much…

A: Answer is explained

Q: manufacturer of aspirin claims that the proportion of headache sufferers who get relief with their…

A: Given data,Probability of success is p=63.8%=0.638If n=430P(X<58.4%)=?

Q: If the probability of being hit by lightning is 1 in 1,000,000, what is the probability of not…

A: Given that , P (being hit by lightning) = 1/1000000 =0.000001

Q: 1. A patient newly diagnosed with a serious ailment is told he has a 60% probability of surviving 5…

A: In the medical field, patients often receive information that may be difficult to comprehend,…

Q: If a particular shipment of thousands of aspirin tablets actually has a 44​% rate of​ defects, what…

A: It is given that aspirin tablets have a 44% rate of defects. That is probability of getting a…

Q: A dashboard warning light is supposed to flash red if a car's oil pressure is too low. On a certain…

A:

Q: The national center for health statistics has found that there is a 5.01% chance that an american…

A: There is 5.01% chance that an American citizen will die from an accident.

Q: If the chance of suffering from occupatinal hazards is 25%, what is the probability that out of…

A:

Q: Police records show that for a certain area in Arendale, when the driver of a car double parks, 60%…

A: Let X be the number of not allowed towed away  Let p be the probability of towed away=0.6  q be the…

Q: A telemarketing firm conducts surveys with a 40% historical response rate. What is the probability…

A:

Q: Suppose that 24% of US adults favor an increase in taxes.  What is the probability that in a group…

A: According to the given information, we have Sample size, n = 8 Given that 24% of US adults favor an…

Q: According to the Center for Disease Control (CDC), the percentage of boys who are diagnosed with…

A:

Q: A construction company wants to understand how important safety helmets are on their worksite. They…

A: Define the events, A : The worker wear safety helmet B : The worker report head injuries Now, 73% of…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.