Based on data from 1996-2006 from the Western Regional Climate Center, the average speed of winds in Honolulu, Hawaii is 10.6 mph, with standard deviation of 3.5 mph. Suppose we take a sample of 30 wind speeds.  What is the probability that the mean wind speed exceeds 11.8 mph? That is find: P(X>11.8) a. 0.3669 or 36.69% b. 0.6331 or 63.31% c. 0.9699 or 96.99% d. 0.0301 or 3.01%

Q: The Aluminum Association reports that the average American uses 56.8 pounds of aluminum in a year. A…

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

Q: The average GPA at the University of North Carolina is 3.2, with a standard deviation of 0.3. Assume…

A: Given that.   X~N( μ , ?^2 )   μ=3.2     , ?=0.3   Z-score =( x - μ )/?

Q: The diameter of a brand of tennis balls is approximately normally distributed with a mean of 2.45…

A:

Q: In a survey of a group of​ men, the heights in the​ 20-29 age group were normally​ distributed, with…

A: Given data,μ=69.7σ=3P(68<X<70)=?

Q: During a recent week the mean price of regular gasoline in Houston was $2.15 with a standard…

A: Given information- Population mean, μ = $2.15 Sample size, n = 36 Population standard deviation, σ =…

Q: A. If one male passenger is randomly selected from the airliner, find the probability that he will…

A:

Q: a. What is the distribution of the mean mpg for the sample? b. What is the probability that the mean…

A: It is given thatMean, μ = 30Standard deviation, σ = 1.7 Sample size, n = 4

Q: Suppose that the sample dataset of July 1 temperatures consisted of 64 observations and that these…

A: given data standard deviation s = 4 sample size n = 64

Q: A study by Hershey's indicated that Americans consumed an average of 12.4 pounds of chocolate per…

A: Given that  X~N( μ = 12.4 , ? = 3.9) μ = 12.4 , ? = 3.9 Z-score =( x - μ )/?

Q: The wildlife department has been feeding a special food to rainbow trout fingerlings in a pond.…

A:

Q: A certain brand of automobile tire hae a life expectancy that ie normally distributed with a mean of…

A:

Q: Assume that the two samples are independent simple random samples selected from normally distributed…

A: The data for the women's and men's diastolic blood pressure are given.

Q: Thwhe average arm height of jaguars is 16 inches, with a standard deviation of 2 inches. out of a…

A:

Q: Tom's commuting time from his residence in Carmel to the IUPUI campus has a normal distribution.…

A: Given that  The Tom's commuting time from his residence in Carmel to the IUPUI campus has a normal…

Q: The average wind speed at a particular site is 16.4 miles per hour (mph) with a standard deviation…

A:

Q: A group of apples from a particular grower were found to have diameters with a mean of 69.0 mm and a…

A:

Q: In a classic statistical study of plants, R. A. Fisher found that a compound measure of dif-ferences…

A: Given: Population mean μ=33.816 Population standard deviation σ=4.781 Sample size (n) = 50 As per…

Q: According to a study done by UCB students, the height for Martian adult males is normally…

A: Find the probability that the person is between 65.1 and 66.4 inches? Let X = height of the…

Q: the mean starting salary for nurses is 67,984 dollars nationally. the stndard deviation is…

A: Mean is 67984 dollars Standard deviation is 10391 dollars

Q: Which of the following is an accurate definition of a Type I error? A.) Rejecting a false null…

A: Answer - Which of the following is an accurate definition of a Type I error?

Q: Given a mean price of a residential real estate sales of KD 527,000 and a standard deviation of KD…

A: To find the probability of: a) having a sale above KD 550,000 b) having a sale below KD 527,500

Q: The salary for workers at a company are normally distributed with a mean of $60,000 and a standard…

A:

Q: In a certain presidential election, Alaska's 40 election districts averaged 1,954.8 votes per…

A: Let X = number of votes for this candidate for an election district.

Q: probability of a worker finishing a pair of jeans in less than 3.5 hours is Select one: a. 0.0808.…

A: It is given that  Mean, μ = 4.2 hours = 252 minutes  Standard deviation, σ = 30 minutes  Z-Score, Z…

Q: Hamilton has an average rainfall of 70 mm over the month of June, wit standard deviation of 3 mm.…

A: Given data,μ=70σ=3P(X=75)=?

Q: The distribution of average speeds of the top 53 drivers in NASCAR is roughly symmetric, unimodal,…

A: Given: μ=184.4σ=7.2N=53

Q: Assume the fill amount of bottles of a soft drink is normally distributed with a mean of 2.0 liters…

A: Assume the random variable x defines the fill amount of bottles of a soft drink.

Q: In a 15-day period, the amount of growth for a population of sunflower plants was found to be a…

A: Here it is given that the growth of sunflower is normally distributed with mean=3.18 and SD=0.52…

Q: ertain presidential election, Alaska's 40 election districts averaged 1,958.8 votes per district for…

A: X will follow normal distribution with mean equal to 1958.8 votes and standard deviation equals to…

Q: Participants from the National Health and Nutrition Examination Survey, 2003-2004, had a mean BMI of…

A: Given,Mean, μ = 28.3Standard deviation, σ = 6.0Using formula (Empirical rule),According to empirical…

Q: On average, the parts from a supplier have a mean of 97.5 inches and a standard deviation of 12.2…

A: On average, the parts from a supplier have a mean of 97.5 inches and a standard deviation of 12.2…

Q: The ideal serving temperature of a particular type of red wine in 15 °C. A food critic is worried…

A: …

Q: Based on tests of the Chevrolet Cobalt, the miles per gallon in highway driving are normally…

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 grocer finds that the cantaloupes in his store have weights with mean 0.7 kg and standard…

A: Given, Mean weight of cantaloupes is 700 gm. Standard deviation is 53 gm

Q: A special diet was given to a species of birds and the gain in weight (in grams) over a 5-week…

A: Given the five-number summary is 55, 90, 105, 120, 155. This means: Min=55 first quartile=90…

Q: A population distribution has o =6. What position in this distribution is identified bya z-score = +…

A:

Q: According to the College Board, scores on the math section of the SAT Reasoning college entrance…

A: Given information, Mean =516 Standard deviation =116

Q: a. H0: _______ b. Ha: _______ c. In words, CLEARLY state what your random variable X represents.…

A: