Understanding student demographics is important for a college in deciding what programs will most benefit students. A sample of students is taken to determine what proportion of students identify as Hispanic or Latino. The results of the sample are shown below. Student sample Hispanic/Latino (x) Sample size (n) 63 350 Confidence Level 90% Critical Value 1.645 Margin of Error 0.034 What is the population parameter? Pick The number of students in the sample that identify as Hispanic or Latino What The proportion of all students at the college that identify as Hispanic or Latino The proportion of all students in the sample that identify as Hispanic or Latino The da The sample size tify as Hispanic or Latino is between [ Ex: 0.123

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A: Given Assuming sample proportion, p^1=p^2=0.5 as there is no prior estimate. Margin of error, E=0.06…

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A: From the provided information, Confidence level = 95% Margin of error (E) = 0.04

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: n the brackets, how did you know to use the 21 and 20 percentiles?

A: The number of observations, The data set…

Q: Evaluate the following. 8P3 = %3D I Calculator > Next Question

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Q: Find the range , the standard deviation, the variance for 45, 75, 84, 58, 81, 65 , 98,63,76

A: Range = Maximum - Minimum = 98 - 45 = 53   The standard deviation can be determined using the…

Q: Heights of NBA All-Star players are normally distributed. 97.5% of players have a height of 85…

A:

Q: Explain the value of p?

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Q: Refer to the following stem-and- leaf diagram. It represents the marks out of 75 of 21 learners in a…

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Q: The mean of the following data is 70. Find x:  47,56,x,79,86

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Q: Let say we want to compare risks of two company.  Yo want to see risks are the same or not.   The…

A: Sample size=26 for both companies (samples) Hence degrees of freedom=26+26-2=50

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: You take a medical test and the doctor tells you that your wellness z-score is 1.86. What percent of…

A: Let X be a random variable from standard normal distribution with mean = 0 and standard deviation =…

Q: A poll showed that 46.1% of Americans say they believe that statistics teachers know the true…

A: Given : The proportion of who believe that statistics teacher know the true meaning of  life : p =…

Q: Your instructor has the Mid-Term examination grades. He told you that the 25th percentile is 51 and…

A: Given that, Your instructor has the Mid-Term examination grades. He told you that the 25th…

Q: You would like to construct a 99% confidence interval to estimate the population mean annual income…

A: given data, confidence interval =0.90α=1-0.90=0.10X¯=40202s=7423

Q: What type of educational background do CEOs have? In one survey, 344 CEOs of medium and large…

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Q: We are asked to find the values that separate the middle 60% of the population from the top and…

A: In a normal distribution, the z-score is a measure of how many standard deviations an element is…

Q: The test score at the 25th percentile is 108. What is the test score at the 75th percentile?

A: Solution

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: A company gives the percentage of defective products as 6% or less. Use the sample below to…

A: Given: p0=0.06n=50x=5 The significance level is taken as 0.05.

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A:

Q: The 20th percentile is how many inches?

A: The mean is 64 inches and the standard deviation is 2.5 inches.

Q: A survey asked office workers what they like t- do when taking a break from work. Preferred break…

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Q: Consider any survey.  If you want to be specific, think about polling people if they prefer Coke or…

A:

Q: the expression in the accompanying discussion of sample size to find the size of each sample if you…

A:

Q: Helen scored in the 85th percentile of the IQ test. What was her raw score? M=100    s=15

A: Given, Helen scored in the 85th percentile of the IQ test. Mean , M=100 and Standard deviation, s…

Q: in the highest 2.5 percent eat?  What is the z-score

A: Given that 2.5% of the highest area present in the data. That is, P(Z>z)=2.5%=0.025…

Q: There were 34 females that weighed over 250 pounds. What percent of females aged 20 to 29 weighed…

A: Given data,  N~(161.61,48.95)  i.e., μ=161.61σ=48.95   If n=34 P(X>250)=?

Q: se answer the question in the photo. TY!

A: GIven:

Q: Raymond wants to estimate the percentage of parents that use cloth diapers. He asks a randomly…

A: According to the provided information, The data set will represent the collection of response…

Q: America OnLine published a survey question. Among the 2,300 Internet users who responded, 20%…

A: From the given information, America OnLine published a survey question. Among the 2,300 Internet…

Q: The test for a certain disease is 86% accurate.  A hospital tests a sample of 5000 patients for this…

A: Given: Accuracy of the test is 86% Inaccuracy of the test = 100-86% = 14% N = Total number of…

Q: If the test result is significant at 5% level, it must also be significant at 1% level. True O False

A: Given : Significance level , α = 0.05

Q: If the mean of a data set is 22 and the SD is 5, what % of the values fall between 12 and 27? Give a…

A: given that  mean of a data set is 22

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

A: Given that there are 24 families in the sample.  Mean=31 Median=27.2 7th percentile= 16 hours

Q: The data set below on the left represents annual rate of return (in percent) of eight randomly…

A: Let, x denotes bond mutual funds and y denotes the stock mutual funds .The data for both of them is…

Q: Suppose you send a survey to 500 people and get 233 responses. You then find that 86% of the…

A: Given that  Surveyed people = 500 Responses got = 233 Then found that 86% of the responses prefer…

Q: The weather report says there is a 20% chance of rain tomorrow. The chance of rain tomorrow.

A: We know that chance is nothing but probability.  it can be written in percentage or fraction value.…

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.