A new brand of drug-free nasal strip claims to be 90% effective in relieving nasal congestion to help you breathe and sleep better. In a sample of 50 patients, what is the probability that exactly 90% of the patients will find this nasal strip effective?

Q: If a seed is planted, it has a 90% chance of growing into a healthy plant. If 10 seeds are planted,…

A: Let us denote X= number of plants that do not grow healthy n= number of trials= 10 probability of…

Q: Eighteen percent of adults in Austria have completely paid off their house mortgage. You randomly…

A: Let X denote the number of 10 adults have completely paid off their house mortgage. Then X follows 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: If a seed is planted, it has a 95% chance of growing into a healthy plant. If 12 seeds are planted,…

A: Sample size, n = 12 Probability(grow) = 95% = 0.95

Q: If a seed is planted, it has a 60% chance of growing into a healthy plant. If 6 seeds are planted,…

A: For any seed there are two possibilities  1. Either they grow  2. Not grow So each seed is…

Q: The probability that a person in the United States has type B blood is 10%. If 3 people are randomly…

A: Let X be a random variable that represents the person in the united states who has type B blood. The…

Q: An entomologist had determined the abundance of weaver ants, Oecophylla smaragdina within oil palm…

A: n = 20P = 0.68X ~ Bionomial (n=20, P=0.68)P(x=x) = nCx P qn-x; x = 0, 1, ...n…

Q: We want to determine the probability that the fifth patient who recovers is the seventh person to…

A: A certain drug is known to be effective in treating a specific disease with a success rate of…

Q: Unilever Inc. recently developed a new body wash with a scent of ginger. Their research indicates…

A: Solution: Let X be the number of men like the ginger scent in the body wash and n be the sample…

Q: If a seed is planted, it has a 60% chance of growing into a healthy plant. If 12 seeds are planted,…

A: 60% chance of growing into a healthy plant i.e. Probability(grow) = 0.60 Probability(doesn't grow) =…

Q: A company's sales team is aiming to achieve a 33% success rate in closing deals. What is the…

A: The given data is as follows:Probability of closing deals is 0.33.The objective is to compute the…

Q: (a) Find the probability that more than 40% of the people in this sample have highblood pressure.(b)…

A: Given : n=75 , p=0.3 Our aim is to find the following :  (a) Find the probability that more than 40%…

Q: If a seed is planted, it has a 80% chance of growing into a healthy plant. If 10 seeds are planted,…

A:

Q: What are the chances that an email that has been flagged as spam is actually a non-spam email?

A: Let us define some events A : an email is spam. B : an email is non-spam. E : an email is flagged as…

Q: If a seed is planted, it has a 75% chance of growing into a healthy plant. If 6 seeds are planted,…

A: From the provided information, If a seed is planted, it has a 75% chance of growing into a healthy…

Q: Based on historical data, your manager believes that 29% of the company's orders come from…

A: The question is about sampling dist. of sample prop.Given :Popl. prop. of company's order come from…

Q: 10 years ago, high levels of lead in blood put 83% of children at risk. Now only 8% of children are…

A: Introduction: Denote p as the true population proportion of children who were at risk 10 years ago,…

Q: An herbalist has a virtually unlimited supply of herbs to treat your gluten allergy. Each herb has a…

A: It is given that there is a 6% of herbs are effective. Therefore, the probability that finding an…

Q: Dr. Threpio has developed a new procedure that he believes can correct a life-threatening medical…

A: Given that  Dr. Threpio has developed a new procedure that he believes can correct a…

Q: A national survey reported that 31% of adults in a certain country have hypertension (high blood…

A: Let X denote the no.of adults in a certain country have hypertension and it follows binomial…

Q: A national survey reported that 31% of adults in a certain country have hypertension (high blood…

A:

Q: An experimental drug has been shown to be 85% effective in eliminating symptoms of allergies in…

A: We have to find given probability.

Q: If an experiment is repeated multiple times, the experimental probability and the theoretical…

A: the more trials you do, the closer the experimental probability comes to theoretical probability

Q: High blood pressure has been identified as a risk factor for heart attacks and strokes. The National…

A: Given: Proportion, p = 0.3 Sample size, n = 80 μ(p)=p=0.3 Standard deviation, σ= p…

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: If a seed is planted, it has a 90% chance of growing into a healthy plant. If 10 seeds are planted,…

A: Given that if a seed is planted, the chance of growing into a healthy plant is 90%.

Q: Some electronic devices are better used than new: The failure rate is higher when they are new…

A: The probability that the machine has flaw is obtained below: From the information, 51.50% of the…

Q: Based on historical data, your manager believes that 32% of the company's orders come from…

A: The probability that the sample proportion is greater than than 0.45 = 0.00352

Q: What is the probability that 8 out of 12 customers will see dramatic results? What is the…

A:

Q: If a particular shipment of thousands of aspirin tablets actually has a 6​% rate of​ defects, what…

A: Given datap=0.06n = 21Applying Binomial theoremProbability of x success out of n trial is given by

Q: Day care centers expose children to a wider variety of germs than the children would be exposed to…

A: Given that,sample one, x1 =1020, n1 =1272, p1= x1/n1=0.8019sample two, x2 =5343, n2 =6238, p2=…

Q: Based on historical data, your manager believes that 34% of the company's orders come from…

A: It is known that, the mean of the sampling distribution of sampling distribution, p-hat is equal to…

Q: A nylon connector manufacturing plant yields 15 % defective items. If 1000 connectors are randomly…

A: Here, n = 1000, p = 0.15.

Q: Some electronic devices are better used than new: The failure rate is higher when they are new than…

A:

Q: Find the probability that exactly 3 experienced insomnia as a side effect.

A: It is given that, Number of Clarinet-D users in our sample (n) = 20 Probability of patients…

Q: Charles is reviewing the midterm grades of all seventh graders at a middle school. Thus far, 10.3%…

A:

Q: Privacy is a concern for many users of the Internet. One survey showed that 59% of Internet users…

A: Let p be the probability of concerned about the confidentiality of their email Based on this…

Q: If a seed is planted, it has 75% chance of growing into healthy plant. If 12 seeds are planted,…

A: Given that, 75% chance of growing into healthy plant.  Sample size = 12

Q: Flying over the western states with mountainous terrain in a small aircraft is 40% riskier than…

A:

Q: What is the expected value for the number of defective LCD

A: The number of LCDs (n) is 5.

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

A: It is given that the proportion of headache sufferers who get relief with just two aspirins is 64%.

Q: A new radar device is being considered for a certain missile defense system. The system is checked…

A:

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.