(d) Identify any unusual events. Explain your reasoning. Choose the correct answer below. A. The events in parts (a) and (b) are unusual because its probabilities are less than 0.05. B. None of the events are unusual because all the probabilities are greater than 0.05. C. The event in part (a) is unusual because its probability is less than 0.05. D. The event in part (c) is unusual because its probability is less than 0.05.

Q: Assume that a distribution of 10000 scores is normally distributed with a mean of 90 and a standard…

A:

Q: A school psychologist is looking at assessment scores from the end of semester finals. She takes the…

A: (a) Step-by-step procedure to draw a curve for getting the probability of a sample mean of SEM=95…

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

A: (a)   Obtain the probability that pregnancy will last 307 days or longer. The probability that…

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A:

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

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

Q: Assume that a distribution of 10000 scores is normally distributed with a mean of 90 and a standard…

A:

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of 96.9 and a standard…

A:

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: a. Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: Given that the mean for a data set is 24.8 and the standard deviation is 2.3, find the z-score of…

A:

Q: A large group of students took a statistics test.               The mean score, from the scale of…

A:

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: Since you have posted a question with multiple sub-parts, we will solve first 3 sub-parts for you.…

Q: The salaries of elementary echool teachere are normally dietributed with a mean of $32,000 and a…

A:

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

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

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: "Since you have posted a question with multiple subparts, we will solve first 3 sub-parts for you.…

Q: The amount of revenue of a shop is approximately normally distributed with a mean of $4500 and a…

A: We have to find out given probability..

Q: Assume that adults have IQ scores that are normally distributed with a mean of 96 and a standard…

A: GIVEN DATA , normal distribution μ=96σ=18robability that a randomly selected adult has an IQ greater…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A:

Q: The length of a fully grown hibiscus plants is normally distributed and has a mean of 35cm and a…

A: Given that,Mean(μ)=35standard deviation(σ)=4     The random variable  is length of fully grown…

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

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

Q: The final exam scores in a statistics class were normally distributed with a mean of 63 and a…

A:

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: Given Information: Highest speed = 76.7 Mbps  Sample mean (x) = 17.21 Mbps

Q: For a population with a mean of 75 and a standard deviation of 4, find the Z Score for an X Score of…

A: Given,population mean(μ)=75population standard deviation(σ)=4Raw score(X)=73

Q: The data {9, 5, 5, 9, 2} represent a random sample of the number of days absent from school for five…

A:

Q: The lengths of pregnancies are normally distributed with a mean of 266days and a standard deviation…

A:

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: (a) Determine the difference between carrier’s highest data speed and the mean of all 50 data…

Q: The weekly demand for Baked Lay's potato chips at a certain Subway sandwich shop is a normally…

A: The question is about normal distribution.Given :Population mean weekly demand (  ) = 450Population…

Q: Find the indicated probability. The weekly incomes of a summer intern in Tesla are normally…

A: Given data,Mean μ=1500sd    σ=300P(X<1200)=?

Q: A survey indicates that for each trip to the supermarket, a shopper spends an average of 45 minutes…

A: Given that, The lengthsnof time spent in the store are normally distributed and are represented by…

Q: What​ women's height corresponds to a​ z-score of −1.80​? b. Professional basketball player Evelyn…

A: It is given that For men, mean = 64, and SD = 2.5 For women, mean = 73, and SD = 2

Q: The length of a fully grown hibiscus plant is normally distributed and has a mean of 35cm and a…

A: Given that, The random variable X is length of fully grown hibiscus plant. It is normally…

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: Hi! Thank you for the question. As per the honor code, we are allowed to answer three sub-parts at a…

Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 62.6 ,…

Q: The WAIS is an IQ test. Scores on the WAIS for the 20-34 age group are normally distributed with a…

A: It is given that the mean and standard deviation for the age group of 60-64 is 90 and standard…

Q: As part of a study, 800 college football players are randomly chosen and their weights taken. The…

A:

Q: Assume that the SAT test scores are normally distributed with a mean score of 1200 and a…

A:

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: Given : x= 78.6 x̄ = 15.15 s = 21.46

Q: A standardized​ exam's scores are normally distributed. In a recent​ year, the mean test score was…

A: We have, X= A standardized​ exam's scores the mean test score was 1549 and the standard deviation…

Q: Assume that a basketball game final scores are normally distributed with a mean of 75 and a standard…

A: Mean = 75Standard deviation = 8

Q: assume that adults have IQ scores that are normally distributed with a mean of 99.5 and a standard…

A:

Q: Assume that​ women's heights have a distribution that is symmetric and​ unimodal, with a mean of 64…

A: As per the multiple questions rule, answering first question. Please repost the second question…

Q: The average price of a gallon of bottled water is $1.58 with a standard deviation of $0.35. If the…

A: Solution

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

A: a) If the probability of a defective bolt is 0.1. Given that there are total of 400. That is, n=400…