The average birth weight of elephants is 240 pounds. Assume that the distribution of birth weights is Normal with a standard deviation of 40 pounds. Find the birth weight of elephants at the 90th percentile. The birth weight of elephants at the 90th percentile is pounds. (Round to the nearest integer as needed.)

Q: A major credit card company has determined that the amount its customers charge on their accounts is…

A: Solution: Let X be the customers charge on their accounts. From the given information, X follows…

Q: Suppose that the mean systolic blood pressure for women over age seventy is 131 mmHg (millimeters of…

A: Given that the mean systolic blood pressure of women over age seventy is 131mmHg with a standard…

Q: In a college class, the average IQ is 115. Assume that the distribution is normal and that the…

A: In a college class, the average IQ is 115. Assume that the distribution is normal and that the…

Q: The mean annual automobile insurance premium is $950, with a standard deviation of $175. The data…

A:

Q: Suppose the average amount of apples per tree in a large orchard is 600 pounds with a standard…

A: Given, Population mean µx=600 pounds Population standard deviation σx=70 pounds a. Assuming that the…

Q: Renee scores an average of 153 points in a game of bowling and her points in a game of bowling are…

A:

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: find the z-score for the value 95, when the mean is 77 and the standard deviation is 2.

A: Given, mean=77 standard deviation=2 find the z-score for the value 95

Q: For the given values ​​, calculate the standard deviation .

A: Given Data : For calculating the standard deviation, below table will be used    YY Y2Y^2 1 5…

Q: find the standard deviation

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: On a spelling test, the standard deviation is equal to 0.94. What does this mean

A: We know that the Standard deviation tells us that how much data is scattered around the mean value…

Q: Female black bears are called sows and weigh on average 175 pounds the average height of a female…

A: Let X denote the height of a female black bear in inches.  We are given μx=69.0 & σx=2.8…

Q: A distance is measured as 27.3 inches and 15.6 inches with the standard deviation (error) of 0.16…

A: Given information- We have given the mean and the standard deviation. E(X) = 27.3 inches E(Y) = 15.6…

Q: the average grade is 84 with a standard deviation of 4. What is each grade for -1 2 0 1.5 -1.25

A: Given Mean μ=84Standard deviation σ=4 The formula for Z score isZ=X-μσX=Z×σ+μ

Q: Calculate the standard deviation , show it step by step

A:

Q: According to the National Association of Colleges and Employers, the 2015 mean starting salary for…

A: (d) Determine the new college graduate in business have to earn in dollars in order to have a…

Q: The weights for newborn babies is approximately normally distributed with a mean of 5 pounds and a…

A: It is given that the The weights for newborn babies is approximately normally distributed with a…

Q: The mean life of a battery is 55 hours with a standard deviation of 6 hours. The manufacturer…

A:

Q: The lengths of a certain species of fish were found to be normally distributed. The mean length is…

A: Given Information :  The lengths of a certain species of fish were found to be normally distributed.…

Q: display of data to find the standar

A: Given,

Q: The mean height of Grade 11 students at a certain University is 150 cm and the standard deviation is…

A: Given that: Mean height: μ=150 cm Standard deviation: σ=12 cm Number of students: n=11 a. greater…

Q: Write down the formulas for the standard deviation of x.

A: The formula for the sample standard deviation can be written as: Here, n is the sample size and x̅…

Q: The heights of women aged 18 to 24 are approximately normal with a mean of 65 inches and a standard…

A: Given that  X~N(μ= 65 , σ= 2.5 ) μ= 65 , σ= 2.5 Formula for Z-score Z=(X-μ)/σ

Q: The heights of 1000 students are normally distributed with a mean of 175 centimeters and a standard…

A:

Q: A data set of home sales prices in an area has an average selling price of $350,000 with a standard…

A: The z score for x = 390000 is calculated as:

Q: The average price of a new two-story townhouse is 1,600,000 pesos, find the maximum and minimum…

A: Given Information : The average price of a new two-story townhouse is 1,600,000 pesos . Assume that…

Q: The annual commissions per salesperson employed by a retailer of mobile communication devices…

A: Obtain the Z-score for the random variable $32000.   The Z-score for the random variable $32000 is…

Q: The average number of acres burned by forest and range fires in Malibu is 6,300 acres per year, with…

A: It is given that the mean is 6,300 and the standard deviation is 1,750.

Q: mark is provided a score of X=57 that corresponds with a score of X=57 that corresponds with a…

A:

Q: The mean height of trees in the virgin forest of Zambales is 42 feet and the standard deviation is 3…

A: The mean height of trees in the virgin forest of Zambales is 42 feet and the standard deviation is 3…

Q: What is the deviation?

A: Deviation is Difference between the Given observed value and One fixed Value...

Q: The mean length of a human pregnancy is 265 days, with a standard deviation of 14 days. Use the…

A:

Q: t is known that the average time required to complete a test exam is 80 minutes and the standard…

A: Given Information: Mean μ=80 min Standard deviation σ=10 min. To find how many minutes should the…

Q: Suppose that the mean systolic blood pressure for women over age seventy is 132 mmHg (millimeters of…

A:

Q: A manufacturing company wants to know if the product waste that they produce complies with the…

A: Given information Sample mean x̅ = 188 kg Population mean µ = 200 kg Sample size = 30 Standard…

Q: Assume that the distribution of a college entrance exam is normal with a mean of 500 and a standard…

A: Consider the equation

Q: Find the mean and standard deviation interpretation

A: * SOLUTION : -   * Given that,

Q: Assume that the heights of 400 basketball players are normally distributed with a mean of 175 cm and…

A: 3.  Assume that the heights of 400 basketball players are normally distributed with a mean of 175 cm…

Q: ccording to a survey on part-time workers, the average base salary for women in sales is higher than…

A: Let X denotes the average base salary for men  Given: = $2500/month Converting it to 12 moth period,…

Q: Suppose the weekly rent of international students in Sydney is normally distributed with a mean of…

A: Assume,  X be the random variable which represents the amount of weekly rent in dollars. μ be the…

Q: Find the mean and standard deviation

A: Uniform Distribution :  The uniform distribution is a type of continuous probability distribution…

Q: A man works for a travel agency whose employees had an avergae income of Php32,000 with a standard…

A:

Q: The average birth weight of elephants is 230 pounds. Assume that the distribution of birth weights…

A: Given,mean(μ)=230standard deviation(σ)=50

Q: Determine the mean and the standard deviation.

A: We have Given a binomial Distribution that is our random variable X~b(n,p) with parameter n=50,…

Q: THE STANDARD DEVIATION

A: Here given AN ENGINEERING STUDENT`SPENDS BETWEEN 5 MINUTES TO 15 MINUTES EATING HIS LUNCH.  Here use…

Q: The weights of an adult female population of killer whales are approximately normally distributed…

A: Let, X1: The weights of an adult female population of killer whales & X1~Normal( 18000, 4000 )…

Q: the scores in a sample that has a standard deviation of z

A: The standard deviation is used to calculate the variability of the data set. It tells us about the…

Q: In a normal distribution, it is found that the mean is 56 and the standard deviation is 5, Find the…

A: We want to find the range of the values

Q: Write down the formulas for the standard deviation of p.

A: Let sample size = n Sample proportion = p̄

Q: A farm hatches chicken eggs in batches of 15 and there is a 3% infertile rate. Find the standard…

A: Obtain the standard deviation for the number of infertile eggs per batch.   The standard deviation…

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.