Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.11 and a standard deviation of 1.46. Using the empirical rule, what percentage of American women have shoe sizes that are between 5.19 and 11.03? Answer How to enter your answer (opens in new window) % Keypad Keyboard Shortcuts

Q: what is the mean : what is the standard deviation : round off to 2 decimal places. What is the…

A: Given: data 27 15 31 16 25 46 25 48 45 28 30 61 19 14 15 26 55…

Q: Find the 30th percentile of the blood pressures. Find the 67th percentile of the blood pressures.…

A: Consider a random variable X which represents the diastolic blood pressures of adult women in the…

Q: Refer to the accompanying table, which describes the number of adults in groups of five who reported…

A: Given that ; X represents the number of adults in groups of five who reported sleepwalking P(x) is…

Q: Step by step answer please

A: Step 1:Determine the given variables Test statistic=t=-2.9554, n=12Hypotheses will be Ho​:ρ=0vs…

Q: Provide descriptive statistics for your program. How many males and how many females were enrolled…

A: As per guidelines we will solve the first question only, please repost other questions for more…

Q: Use the sample mean(78.5)and sample standard deviation (12.3671)in your calculations below. Use…

A: Given that:

Q: A college was conducting a phonaton to raise money to increase students’ scholarships. The president…

A: The observations of the amount pledged (in thousands of dollars) are as follows:16, 18, 11, 17, 13,…

Q: Caitlin took both the SAT and the ACT college entrance exams.  Her scores on both exams are shown in…

A: Given that  Exam Caitlin'sExam Score National MeanExam Score National StandardDeviation SAT…

Q: Recently, a random sample of 25-34 year olds was asked, "How much do you currently have in savings,…

A: We need to find mean and standard deviation amount of savings for the given data.

Q: The average daily points for my fantasy baseball team are {4.1, 5.7, 3.8, 4.7, 4.7, 5.5, 4.1, 2.7,…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: A Gallup poll wants to determine the mean number of books Americans read each year. How many…

A: given, population standard deviation σ = 5.4 Margin of error (E) = 0.57 significance level (α) =…

Q: Determine whether the following graph can represent a variable with a normal distribution. Explain…

A: Given:

Q: Take Quiz The following cholesterol levels of 10 sampled people were measured in m(g)/(d)l :…

A:

Q: Direction: Compute and Illustrate the distribution of the mean. 1. The average price of a computer…

A: Given,sample size(n)=27mean(μ)=789standard deviation(σ)=348

Q: Determine whether the following graph can represent a variable with a normal distribution Explain…

A:

Q: days in Buffalo, NY: {17, 26, 3, 13, 29, 34, 32, 30, 41} Which of the following values represent the…

A: Given data, 17,26,3,13,29,34,32,30,41   Standard deviation=? Variance =?

Q: At a tennis tournament a statistician keeps track of every serve.  The statistician reported that…

A: GivenMean(μ)=100standard deviation(σ)=9

Q: Recently, a random sample of 25-34 year olds was asked. "How much do you currently have in savings,…

A: The data in the given table represent the responses of the…

Q: A TV weatherman end of the year analysis of the local weather showed that among all the years for…

A: Z-score: The Z-score measures a particular value’s relationship to the mean, in a group of values.…

Q: In the data set below, what is the mean and the standard deviation? Round answers to the hundredth…

A:

Q: Coronary bypass surgery: A healthcare research agency reported that 42% of people who had coronary…

A: We have given that Probability (p) = 0.42Number of sample (n) = 11 Here we will use binomial…

Q: In a recent survey, it was stated that Filipino teens watch television on average 3.5 hours per day.…

A: Given : sample size = n = 20 Sample mean = x = 3.1 Standard deviation = s = 3.1

Q: dying the number of gallons of gasoline purchased per customer at self-service pumps. The mean…

A:

Q: use the dataset given below. 49,50,52,53,53,54,54,56,56,58,61,61,62,62,64,65 Round your answers to…

A: A discrete variable has several properties. These are central tendency, dispersion, skewness,…

Q: What is the percentile rank for a student who scored 74 on a softball rules test if the class mean…

A:

Q: What does​ Chebyshev's rule say about the percentage of observations in any data set that lie within…

A: The Chebeyshevv's inequality is stated as, for a random variable, X with finite mean, μ and…

Q: Describe the importance of standard deviation.

A: As per our guidelines, we are allowed to answer first  question only. Thanks   1. Describe the…

Q: 110, 115, 112, 127, 112, 130.

A: Given that  Sample data : 110,115,112,127,112,130 Sum of the data values (∑(Xi)) =…

Q: In the 1992 presidential election, Alaska's 40 election districts averaged 2108 votes per district…

A: Given: Alaska's 40 election districts X = number of votes for President Clinton for an election…

Q: Determine whether the following graph can represent a variable with a normal distribution. Explain…

A: Solution-: Determine whether the following graph can represent a variable with a normal…

Q: None

A:

Q: National park services, a bureau of the US government responsible for park management, is interested…

A: For current year: The mean can be obtained as: Thus, the mean is 74.56. Arranging the data set into…

Q: If the weight (in pounds) of fish in my pond is normally distributed with mean 8 and standard…

A: X follows a Normal distribution with mean = 8 and S.D = 2 Then z=(x-mean)/SD = (x-8)/2  follows…

Q: 1100 19 2100 20 31am individuals 30

A: Given : Age range Number of individuals 1-10 30 11-20 19 21-30 20 31-over 13

Q: Random error causes data to be scattered more or less symmetrically around a mean value while…

A: here use basic of error

Q: Recently, a random sample of 25-34 year olds was asked, "How much do you currently have in savings,…

A: SavingsFrequency$0 - $199330$200 - $39994$400 - $59947$600 - $79919$800 - $99913$1000 - $11997$1200…

Q: Are Older men Shorter than younger men? According to a national report the mean theight arus men IS…

A: Given information: μ=69.4x¯=68.7n=300σ=3.42α=0.05

Q: 1.  In a sentence or two, explain what a sampling distribution is. 2. In a sentence or two explain…

A: Introduction: The concept of standard error of the mean is relevant in the context of the sampling…