Suppose that the age of students at George Washington Elementary school is uniformly distributed between 5 and 11 years old. 42 randomly selected children from the school are asked their age. Round all answers to 4 decimal places where possible. What is the distribution of XX? XX ~ U(Correct,Correct) Suppose that 42 children from the school are surveyed. Then the sampling distribution is What is the distribution of ¯xx¯? ¯xx¯ ~ N(Incorrect,) What is the probability that the average of 42 children will be between 8 and 8.3 years old?

Q: About 79% of all female heart transplant patients will survive for at least 3 years. Eighty female…

A: Consider that p is population proportion of female heart transplant patients, who are surviving for…

Q: cosh(7)=

A: cosh is hyperbolic function. Formula for cosh is given by, cosh(x) = ex+e-x2

Q: Use a normal distribution to estimate the probability of more than 55 girls being born in 100…

A: Given that, The Mean and Standard deviation are, Check the conditions of normal approximation to…

Q: In Binomial Distribution, If q=60% and n=12, then the mean is 0.72. (True or False)

A: Solution: From the given information, q=0.60 and n=12.

Q: A professor of statistics noticed that the marks in his course are normally distributed. He has also…

A: μ1=0.78, σ1=0.15μ2=0.74, σ2=0.13

Q: Suppose the mean height in inches of all 9th grade students at one high school is estimated. The…

A: Given that  Sample size n =9 Population standard deviation =3

Q: According to the Department of Education, 60% of college students enjoy taking Statistics. Suppose…

A: Let  X be the number of students who enjoy taking Statistics in a sample of 200. Given n = 200…

Q: The number of calls received by an office on Monday morning between 8:00 AM and 9:00 AM has a mean…

A: Answer: From the given data, Let X represent the number of calls received by an office on morning…

Q: A certain airline wishes to estimate the mean number of seats that are empty on flights that use…

A:

Q: A poll is given, showing 65% are in favor of a new building project. If 9 people are chosen at…

A:

Q: We are interested in the mean migration distance of Canadian geese. Suppose that we know that the…

A: Sample size n =25 Population mean μ =2500 Population standard deviation =250

Q: what is the probability of rolling two dice a sum of 5 as a percent rounded to 1 decimal place.

A: From the provided information, Two dice are rolled. Total outcome after rolling two dice = 6 × 6 =…

Q: A test is conducted in a high-risk area during a pandemic. Of the 20 people who were tested, 7 are…

A: The total number of people tested are 20. The number of positive cases are 7. The number of negative…

Q: uppose you know that the distribution of sample proportions of fifth grade students in a large…

A: Given that  Sample size n =100 Mean=0.30 Standard deviation =0.08

Q: Q9. What is the probability that a randomly chosen number among these data points is between 95 &…

A: Given that, Total number of data values nS=16

Q: Phyllis, a college business student wants to study how many students in her class study for less…

A: The central limit theorem states that the distribution of the sample mean is approximately normal…

Q: What is the mean of the sample distribution? What is the R code to find the probability that this…

A: The population mean: μ=2500 Standard deviation: σ=250 Sample Size: n=25

Q: (Question from the class forum) A grocery store has 3 red apples, 2 green mangos, 6 green apples, 3…

A: 3 - red apples 2 - green mangos 6 - green apples 3 - red mangos ____________________ 14 total fruits…

Q: Planet X has 73 calendar days. What is the probability that in a room with 11 inhabitants of Planet…

A: To solve this, we can first calculate the probability that none of the 11 inhabitants share a…

Q: A courier service company wishes to estimate the proportion of people in various States that will…

A: It is given that: The population proportion is p=0.05. The sample size is n=330.

Q: A box contains 5 balls. One is numbered 3, two are numbered 4, and two are numbered 5. The balls are…

A: Given: A box contains 5 balls. One is numbered 3, two are numbered 4, and two are numbered 5. The…

Q: What is the probability that the sample mean tax is between 7600 8000

A:

Q: About 79% of all female heart transplant patients will survive for at least 3 years. Seventy female…

A:

Q: Prepare a distribution table and probability histogram for the number of 3s when a die is rolled…

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Q: Illustrate the probability histogram of the sampling distribution ofthe means. There are total of…

A: Given information: The average time of 15 minutes. Standard deviation of 6 minutes 56 athletes are…

Q: what is the probability that the sample proportion will differ from the population proportion by…

A: We have given that the true population proportion p = 0.07. The sample size n = 492.

Q: You are to pick 4 numbers from 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 such that the 4 numbers…

A:

Q: Goofy's fast food center wishes to estimate the proportion of people in its city that will purchase…

A: Consider that p is population proportion of people in its city that will purchase its products.

Q: About ​80% of all female heart transplant patients will survive for at least 3 years. Seventy female…

A: Given information Probability that female heart transplant patients will survive for at least 3…

Q: Mean is 100, dtandard deviation is 15, IQ values are 100, 120, 88, 92, 65.  What is probability in…

A:

Q: About 71% of all female heart transplant patients will survive for at least 3 years. Eighty female…

A:

Q: A waitress keeps track of the tips she earns and knows that her mean tip is 15% with a standard…

A: We have been given that a waitress keeps a track of the tips that she earns and knows that her mean…

Q: The number of accidents recorded yearly in a certain discrete for eight consecutive years are 96,…

A:

Q: Find the sum of squares of the deviation from the mean of the series of act scores listed below are…

A:

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.