Male players at the high school, college, and professional ranks use a regulation basketball that weighs 22.0 ounces with a standard deviation of 1.2 ounces. Assume that the weights of basketballs are approximately normally distributed. If a basketball is randomly selected, what is the probability that it will weigh between 21.4 and 23.8 ounces? EXPRESS YOUR ANSWER AS A DECIMAL AND ROUND TO THE NEAREST TENTH

Q: The diameters of ball bearings are distributed normally. The mean diameter is 87 mm and the standard…

A:

Q: If the grades are normally distributed and 8 students received a B, how many students took the…

A: Let C denote the grades of students. Given that X follows N(mean = 82, SD = 5), then  Z = (X -…

Q: Michelle, a telemarketer makes six phone calls per hour and is able to make a sale on 30% of these…

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Q: 9% of all cars fail the emissions inspection, find the probability that in a sample of 125 cars, 16…

A: Given n=125 P=0.09

Q: 95% of 80 freshman history students scored between 70% and 80% on a take home quiz. If this data is…

A: Given,  n=80 α= (1-0.95) =0.05 Let X denote the score of freshmen. As per t-distribution table, the…

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Q: The probability distribution of a random variable x is given in the table. Find the mean and…

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Q: Use the table to answer each question. Note: Round 2-scores to the nearest hundredth and then find…

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Q: If the probability of defective bolt is 0.1, find the mean and the standard deviation for the number…

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Q: According to National Testing data, college math class testing times are Normally distributed with a…

A: We have given that  X~N( μ , ?^2 )    μ = 46    , ? = 9

Q: Full time Ph.D. students receive an average of $13,537 per year. If the average salaries are…

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Q: The weights of steers in a herd are distributed normally. The standard deviation is 200lbs and the…

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Q: ind the probability that a voice recorder will last between 2.8 and 6 years. Find the 70th…

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Q: The mean height of Grade III pupils is 138 cm with a standard deviation of 8 cm. If a sample of 30…

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Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 7.2…

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Q: oblem Solving: Sow your complete sOl 1. The systolic blood pressure for a distribution with u = 120…

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Q: A newly-hired school registrar in a Science High School would like to determine the overall…

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Q: Trucks in a delivery fleet travel a mean of 100 miles per day with a standard deviation of 19 miles…

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Q: Find the number of volunteers with ages less than 20 years. Find the number of volunteers with ages…

A: As per our guidelines, we are allowed to answer only first three sub-parts . Thanks.   a)  The…

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Q: The weights of newborn baby boys born at a local hospital are believed to have a normal distribution…

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Q: Temperatures a city are distributed approximately normal, with a mean of 61 degrees fahrenheit and a…

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Q: The probability that a patient recovers from a delicate heart operation is 60%. There are 20…

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Q: The average teacher's salary in Connecticut (ranked first among states) is $57,337. Suppose that the…

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A: given data  normal distribution  μ = 269σ = 15

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Q: The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation…

A: Refer Standard normal table/Z-table to find the probability of z=2.67.

Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

A: Given,mean(μ)=312P(X>319)=0.28

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.