The length of songs in a collector's iTunes album collection is uniformly distributed from two to 3.7 minutes. Suppose we randomly pick five albums from the collection. There are a total of 42 songs on the five albums. can someone explain how I solve the following: Give the distribution of x̅ (round to four decimal places) Find the first quartile for the average song length (round to two decimal places) Find the IQR for the average song length

Q: tudent obtained the mean of 58 observations as 48. It was later found that one observation was…

A: Given data, n=58 The mean for 58 observations is 48 x=∑xn48=∑x58∑x=2784

Q: The Inter Quartile Range is the difference between the third and first quartiles. It describes the…

A: WE have to find given probability.

Q: A set of 100 values has a median value of 40. What is the value of the 75th percentile in this set…

A: Introduction: Percentiles are used in statistics to divide a set of numerical values into 100 equal…

Q: Q2. Define population in terms of statistics and describe why are samples needed and how are they…

A: It is asked to define the population in terms of statistics and to describe why samples needed and…

Q: The mean and S.D. of income of 50 men are Rs. 3200 and Rs. 525 respectively The same for 40 women…

A: Formula for S.D for combined group: σ12=n1(σ12+d12)+n2(σ22+d22)n1+n2          Combined mean is,…

Q: After 5 points are added to each score in a sample, the mean is found to be M=45 . What was the…

A: Given data: c = 5 points are added to each score in a sample. New mean, M = 45 Let the original mean…

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given: * 24 of all families in the sample turned on the television    for 22 hours or less for the…

Q: What proportion of z scores lie between -3 and +3 in the height in inches data set

A: We have to calculate P(-3 < Z < 3)

Q: The test scores for five students were 59, 60, 63, 76, and 87. How many points greater than the…

A: The mean is the average of all the values, or it is the sum of all the values divided by the number…

Q: Find the first and third quartiles for a week's temperatures from last year's summer, expressed in…

A:

Q: what range of raw scores makes up the middle 40%

A: The middle 40% means, the scores lie between 30th and 70th percentile. From stand normal, z-score…

Q: The scores on a statewide chemistry exam were normally distributed with ?=73.08 and ?=6. Gabriela…

A: Given data isMean(μ)=73.08standard deviation(σ)=6

Q: Find the z-score that corresponds to the 63rd percentile

A: we have to find the Z-score that corresponds tothe 63rd percentile.

Q: The mean weight of 150 students in a certain class is 60 kg. The mean weight of boys in the class is…

A:

Q: In a class of 10 students, James got 3rd position from the lowest. What is his percentile rank?

A: Given data: In a class of 10 students, James got 3rd position from the lowest. To find: What is his…

Q: Male and female athletes exercised for an hour on a treadmill. During this time, half of each sex…

A: To use: What statistical test should be used to see how sex and type of beverage affect lactic acid…

Q: The median is equal to the 5th decile. True or False?

A: Solution

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: To find: how many familles are in the sample?

Q: Celyn is among the 1500 students of the school.If Celyn's score based on the Standard-Binet test is…

A: Given: Number of students = 1500 Score on standard Binest test is 105

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given information- Mean of the data = 35 hours Median = 31.2 hours Sample size = 24 families We have…

Q: Task: Consider a population consisting of the following data: 3, 5, 7, 9. 1. Solve for the…

A:

Q: Roxanne ranks 10th in a class of 40. Her percentile rank is

A:

Q: calculate all of the measures of variation that are appropriate.

A: Here measures of variation  IQR  Range  Variance  Standard deviation

Q: Find the 90th percentile. So 10% of the T

A: Let X be the lifetime of LCD TV sets follows an exponential distribution with a mean of 100,000…

Q: You know that 149 of the 196 students that took a test scored lower than 85 on test. What percentile…

A: As given,  There are 196 students  Out of 196 students, 149 students have test scored lower than…

Q: Q2. Define population in terms of statistics and describe why are samples needed and how are they…

A: A population can be defined as a group of individuals belonging to the same species residing in a…

Q: A parent comes to you and asks the difference between percent correct and the national percentile…

A: Concept: Percentage in simple terms can be difined as a number that is out of 100. Maximum marks are…

Q: ACT scores overall have a mean of 1017 and s = 207. If a college wants to admit only the top 30% of…

A: mean = 1017 s = 207 z-critical value at confidence interval 70%   = 0.5244

Q: If a person’s z-score equalas 2.08, what is their percentile? Thank you.

A: Our aim is to find the percentile.

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: From the above data  We are given that  Median =26.2 hours

Q: Find the z score for the 55th percentile.

A: Percentile= 55th  = 0.55 P(Z=z)= 0.55

Q: ter six biology tests, Ruben has a mean score of 73. What score does Ruben need on the next test to…

A: Given data,After six biology tests, Ruben has a mean score of 73Which means∑x6=73∑x=438What score…

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.