Let us suppose that a certain probability instructor manages, with probability 1, to write exams that have mean 75 and standard deviation 10 . The instructor is teaching two classes, one of size 64 and the other of size 36, and is about to give an exam to both classes. (a) Approximate the probability that the average test score in the class of size 64 exceeds 80. Probability ≈(b) Repeat part (a) for the class of size 36. Probability ≈ (c) Approximate the probability that the average test score in the larger class exceeds that of the other by more than 2 points. Probability ≈ (d) Approximate the probability that the average test score in the smaller class exceeds that in the other by more than 2 points. Probability ≈

Q: ALICE and YouGov conducted an online poll among Americans hotel guests of more than 18 years old to…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 710 grams and a standard…

A: Let X be the random variable from normal distribution with mean (μ) = 710 and standard deviation (σ)…

Q: The pharmaceutical manufacturing process is continually monitored for out-of-specs content of the…

A: A. The complete table is given below.Out-of-specs (x)Probability (x)x.P(x)x - μ(x -…

Q: The distribution of the scores on a certain exam is ​N(50​,10​),which means that the exam scores are…

A:

Q: Let, x, represent the number of guests interested in gaining experiences of local cuisine…

A: Let, x, represent the number of guests interested in gaining experiences of local cuisine…

Q: According to the Alzheimer's Association for 2014 for people ages 75-84, for a group of 4 people the…

A: Given the probability distribution table: x P(x) 0 0.07 1 0.22 2 0.34 3 0.27 4 0.10…

Q: Rosa surveys 53 students at random to determine the proportion of students who have attended Mt. San…

A: Given Information:  Sample size (n) = 53 students Proportion (p) = 0.53

Q: second one. Suppose the speed of the first plane (km/hr) is normally distributed with mean 550 and…

A:

Q: Tom works for a fruit company and found that the weight of pineapples are normally distributed with…

A: From the information, mean is 500 and standard deviation is 100.

Q: ose that we know, in addition, thất the standard deviation of the student's test on the final is…

A: We have given that.   X~N( μ , ?^2 )   μ = 71.5 , ? =8.8   Z-score =( x - μ )/?

Q: Suppose that you and every person in your very large city get five pieces of chocolate from Trader…

A: Given,sample size(n)=5mean(μ)=3standard deviation(σ)=2

Q: hat is the probability distribution if X~B(3, 0.82)

A: Given : X~B(3, 0.82) Here X is a random binomial variable with number of trials , n = 3 and p = 0.82

Q: ALICE and YouGov conducted an online poll among Americans hotel guests of more than 18 years old to…

A: Solution: Let X be the number of guests interested in gaining experiences of local cuisine tastings/…

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.