A pharmaceutical company claims that a drug is effective in treating 90% of people having severe mig headaches. The drug is administered to 6 patients who have severe migraine headaches. What is the standard deviation of the binomial distribution? O 0.27 O 0.73

Q: In an article about the cost of health care, Money magazine reported that a visit to a hospital…

A: The mean of the cost of the sore throat is $328. The standard deviation of the cost of the sore…

Q: The average credit card debt for college seniors is $3000. If the debt is normally distibuted with a…

A: A) The senior owes at least $1200

Q: If the mean of a Binomial distribution is 5, which is the most likely value for its standard…

A: Answer :- Mean of binomial Distribution  = np = 5 Standard Deviation of binomial Distribution =

Q: The mean weight of newborn infants at a community hospital is 6.6 pounds. A sample of seven infants…

A: Sample points are 9.0,7.3,6.0,8.8,6.8,8.4,6.6. Sample size = n = 7.

Q: According to a 2017 Wired magazine article, 40% of emails that are received are tracked using…

A: a. Let the variable X is defined as the number of emails that are tracked which follows binomial…

Q: Calculate the mean, standard deviation, and variance for the following five scores: 9,4,7,1,4.

A:

Q: c.    What is the mean of the sample means? d.    What is the standard deviation of the sample means…

A: Let  Mu = population mean  X bar = sample mean n = sample size  Sigma = population standard…

Q: A pharmaceutical company claims that a drug is effective in treating 90% of people having severe…

A: It is given that the random variable follows a binomial distribution with n=6 and p=0.9.

Q: The Economic Policy Institute periodically issues reports on wages of entry level workers. The…

A: From the given data: Standard deviation for male = $2.30 Standard deviation for female = $2.05

Q: a. How many standard deviations away from the mean is a beetle with mandible length of .44 mm? b.…

A: A z-score is known as the standard score that determines how much the data point deviates from the…

Q: Find: -mean -variance -standard deviation  -z-scores Of this set of numbers: 1, 1, 2, 2, 2

A:

Q: Find: -mean -variance -standard deviation  -z-scores Of this set of numbers: 4, 3, 3, 3, 4

A:

Q: (a) How many reams should the manager expect to use each day? (b) What is the standard deviation of…

A: here given Discrete probability Distribution of X  X=  no of reams of paper Used

Q: The weight of football players is normally distributed with a mean of 180 pounds and a standard…

A:

Q: Rochester, New York averages μ = 21.9 inches of snow for the month of December. The distribution of…

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Q: 4. Which of the following distributions has the larger mean? Which has the larger standard…

A: Hey there! Thank you for posting the question.  Since there are multiple questions posted, we will…

Q: The amount of rain falling in Waimea Canyon State Park, Kauai is normally distributed with a mean of…

A: Let x¯ is defined as the mean rain of 16 randomly picked days which follows normal distribution. The…

Q: Full-time college students report spending a mean of 29 hours per week on academic​ activities, both…

A: Givenmean(μ)=29standard deviation(σ)=4sample size(n)=64

Q: The Cpa practice advisor reports that the mean preparation fee for 2017 federal income tax returns…

A: From the provided information, Mean (µ) = $273 Standard deviation (σ) = $100 X~N (273, 100) Here X…

Q: s the standard deviation of the following data set?  State your result as a decimal value with two…

A: The table that shows the necessary calculation is depicted as: x x−¯x (x−¯x)2 1 -2.5 6.25…

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 9.6 inches,…

A: Given : Let X be a r.v X : Length of items (in inches)  Mean (μ) = 9.6 S.D (σ) = 1.8

Q: At a customer service call center for a large company, the number of calls received per hour is…

A:

Q: A recent CNN News survey reported that 76% of adults think the U.S. pennies should still be made.…

A: (a)   Determine the expected value.   The expected value is obtained below as follows:   Let X…

Q: b) The American Automobile Association reports that the average time it takes to respond to an…

A: Given  μ=38, σ=9.002 and n=80

Q: The average full-time faculty member in a post-secondary degree-granting institution works an…

A: In a bell shaped distribution, 68% items falls within one standard deviation of mean, 95% items…

Q: According to government data, the probability that a woman between the ages of 25 and 29 was never…

A:

Q: The iPhone battery capacity is normally distributed with a mean of 4 years and a standard deviation…

A: Note: “Since you have posted a question with multiple sub-parts, we will solve first three subparts…

Q: Given that the population of women's height has a mean of 63.6 inches and a standard deviation of…

A: Hello. Since your question has multiple, we will solve first question for you. If you want remaining…

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 11.6…

A:

Q: A laptop producer has been getting complaints on the batteries they install. Particularly, the…

A: probability of overheating =P =9/20 =0.45 Let x be the random variable denoting the number of…

Q: The number of incoming students at two campuses of a midwestern university have historically been…

A: Given that the main campus incoming class has a mean of 3,916 and a standard deviation of 375.…

Q: A senior high student commutes daily from home to school. The average time for a one way trip is 20…

A: Given that, μ=20 minutesσ=4 minutes The no.of minutes is the starting point of the longest 10% of…

Q: Based on past experience, a bank believes that 10.9% of the people who receive loans will not make…

A: Given Information: p = 0.109 n = 360 q = 1 - p = 1 - 0.109 = 0.891 Suppose a random sample of size…

Q: A physical fitness association is including the mile run in its secondary-school fitness test. The…

A:

Q: A physical fitness association is including the mile run in its secondary-school fitness test. The…

A: P(X<348)=?

Q: The probabilities that a person is receiving a chat message 0, 1, 2, 3, 4, or 5 per day are the…

A: Let X be the random variable having probability distribution is,  X 0 1 2 3 4 5 P(x)  0.08 0.19…

Q: The heights of strawberry plants are Normally distributed with a mean of 12 inches and a standard…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: a

A: Given data: Mean cost of money magazine is $328, standard deviation of the magazine is $92. To find:…

Q: The final score for a mathematics exam is normally distributed, with an average score (µ) of 57 and…

A: GivenMean(μ)=57standard deviation(σ)=9.25

Q: What is the standard deviation of the distribution in Table 1? Round your answer to the nearest…

A: Solution: Let X be the number of slam dunks. The probability function for X is calculated as…

Q: According to a study, the salaries of registered nurse are normally distributed with a mean of 56310…

A: Given,mean(μ)=56310standard deviation(σ)=5038

Q: A laptop producer has been getting complaints on the batteries they install. Particularly, the…

A: There are 9 overheating batteries in the batch of 20 means that the proportion of getting the…

Q: ne Energizer Company claims that the life of oproximately normally distributed with a mean lengt hen…

A: (a) As the population standard deviation is known, it can be said that the distribution follows a…

Q: If a gambler places a bet on the number 7 in​ roulette, he or she has a​ 1/38 probability of…

A:

Q: A technical assistance service with electronic equipment has that its service time is normally…

A: Given,mean(μ)=80standard deviation(σ)=25

Q: A fitness instructor at a large gym would like to know if the individuals that take fitness classes…

A: Morning steps mean should be greater than Evening

Q: c. What is the probability that exactly ten of the 45 luxury cars sold are silver? d. What is the…

A: It is given that n=45 and p=0.191.

Q: According to AAA, the price of a gallon of regular, unleaded gas across gas stations in Ohio is…

A: According to AAA, the price of a gallon of regular, unleaded gas across gas stations in Ohio is…

Q: The mean, µ, is (Round to the nearest tenth as needed.) The variance, o², is| (Round to the nearest…

A: Given : The distribution is binomial distribution  and  n = 50 , p = 0.2

Q: "An electrical firm manufactures light bulbs that have a length of life that is approximately…

A: Given data,Mean μ=843sd    σ=35n=31Find mean of sampling distribution?