For numbers 5-8, refer to the following problem. The average precipitation for the first 8 months of the year is 18.35 inches with a standard deviation of 2.2 inches. Assume that the average precipitation is normally distributed.   5. What is the average precipitation of 5 randomly selected years for the first 8 months? A. 18.35 inches B. 19.32 inches C. 19.35 inches D. 20 inches   6. What is the standard deviation of 5 randomly selected years for the first 8 months?

Q: Assume that the readings on the thermometers are normally idstributed with a mean of 0° and a…

A: Mean(µ) = 0Standard deviations (σ) = 1X ~ N (µ, σ )= N(0,1)

Q: A statistics teacher believes that the final exam grades for her business statistics class have a…

A: Given Normal distribution with  Mean =82   SD =8 We have to answer for mentioned questions

Q: Suppose that the exam scores of a statistics class were normally distributed with a mean of 94 and…

A: Solution: Let X be the exam score of a statistics class. From the given information, X follows…

Q: Assume that weights of men are normally distributed with a mean of 160 pounds and a standard…

A: Given, Weights of men follows normal distribution with mean 160 pounds and standard deviation 25…

Q: A set of average city temperatures in December are normally distributed with a mean of 16.3°C and a…

A: Given: μ=16.3σ=2

Q: A researcher measures the amount of food consumed by each dog in her lab. She finds that the mean…

A: It is given that mean amount of food is 12 oz and number of dogs is 16. The sum of squared…

Q: Suppose that the speeds of cars travelling on California freeways are normally distributed with a…

A: Provided information is: The speeds of cars travelling on California freeways are normally…

Q: A nutritionist wants to determine how much time nationally people spend eating and drinking Suppose…

A: According to the given information in this question, we need to answer part c

Q: Greg is in his first semester at a university and is taking a calculus course with a large…

A:

Q: Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard…

A:

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: In a given school year, the ACT test mean score was 21 with a standard deviation of 4.9.  The same…

A:

Q: sume that the readings on the themometers are normally distributed with a mean of 0" and standard…

A: We have find givan normal distribution...

Q: Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard…

A:

Q: Below represents the amounts that a random sample of employees reported that they spent on dinner…

A:

Q: Jim and Pat are both taking Calculus. Jim scored 92 on a test in his class. The average on the test…

A: To find: Who actually did better? Include the Z-scores as part of the answer.

Q: 5 students were given a test. The average and standard deviation of the 5 scores were found to be…

A:

Q: Laura learned that the average GPA in her school is 3.6 with a standard deviation of 0.3. If her GPA…

A: From the given information,   Mean = 3.6 Standard deviation = 0.3   The objective is to find the…

Q: Last year, the mean salary of accounting clerks was $29932. If we assume that the annual salaries…

A: Given Data: Let X represent the random variable   X~ Normal (29932, 18502)

Q: Last year the revenue for utility companies had a mean of $60 million with a standard deviation of…

A:

Q: Suppose that the mean of a set of data is 50.2 and the standard deviation is 4.2.  Assume that the…

A: Given  μ=50.2, σ=4.2, h=5.1  We want to find the new mean and standard deviation.

Q: mar is trying out to be a firefighter.  On the written exam, the mean of everyone who takes the test…

A: given data, μ=54.5σ=3.1Omar scores exactly 0.75 standard deviations above the mean z=0.75raw score…

Q: Suppose that the mean weight for men 18 to 24 years old is 170 pounds, and the standard deviation is…

A: Mean()=170standard deviation()=20

Q: Create your Data Set. These are your X-values: 1. Choose a number between 50 and 100. And write your…

A:

Q: The IQ score that separates the bottom 15% from the top 85% is P,5 =. (Round to the nearest…

A:

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Use GeoGebra. Plug in all the values in the formula.

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 268 days…

A: 1. Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: Suppose that the speeds of cars travelling on California freeways are normally distributed with a…

A: Given Information :  Suppose that the speeds of cars travelling on California freeways are normally…

Q: In the year 2013, the average SAT mathematic was 513. Suppose that these scores were normally…

A: Here, mean is 513 and standard deviation is 80. We will use z-standard normal distribution to find…

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.