Family size 1 2 3 4 6. 7 Proportion 0.28 0.35 0.15 0.13 0.06 0.02 0.01 Note: In this table, 7 actually represents households of size 7 or greater. But for purposes of this exercise, assume that it neans only households of size exactly 7. uppose you take a random sample of 4000 American households. About how many of these households will be of size 2? Sizes to 7? he number of households of size 2 is about he number of households of size 3 to 7 is about

Q: 4. Suppose the population size N = 5,000 In 2008 the Better Business Bureau settled 75% of…

A:

Q: d. The degrees of freedom = e. The test-statistic for this data = (Please show your answer to three…

A:

Q: A researcher wishes to estimate the number of households with two cars. How large a sample is needed…

A: Given :Margin of error:ME = 0.06sample proportion:p̂ = 0.23

Q: Refer to Exhibit 9-61. The test statistic is O O O-1.6 O 1.6 -2.80 1.25

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A: replacing the missing value.

Q: 4. Suppose the population size N = 5,000 In 2008 the Better Business Bureau settled 75% of…

A:

Q: A focus group of 3 students from this class is going to be randomly chosen. In how many ways can the…

A: Students to be chosen = 3 Total number of students in the class  = (6+4+3+1+1+5+8+3+1+1) = 33

Q: Inspectors choose 40 envelopes from the 1000 stuffed each hour for visual inspection. What is the…

A: From the provided information, Inspectors choose 40 envelopes from the 1000 stuffed each hour for…

Q: Thank you and the question is attached.

A: (a)  r shows the sample correlation coefficient that is sample statistic and, here, it measures the…

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A: The pooled estimate of the proportion is a weighted average of the proportions from the two samples.…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Given Information:Margin of error, E=1.5%=0.015Confidence level, c=95%=0.95

Q: 16. Saraya surveyed people in her community to find out how many states they had visited. She…

A:

Q: A random sample of n, = 154 people ages 16 to 19 were taken from the island of Oahu, Hawaii, and 11…

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Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Margin of error =E =0.025 Population proportion p=38%=0.38

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A:

Q: Are our kids getting taller? The average height of kindergartners in 1950 was 39.5 in. The data…

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Q: 5. A random sample of 30 males between ages 25 – 40 is taken for a health and fitness study.…

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A:

Q: Homer Simpson is interested in studying the ratio of the various colors of sprinkles on Lard Lad…

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Q: Avarege GPA questions. Data  include.

A: Note: Since we are entitled to answer up to 3 sub-parts, we’ll answer the first 3 as you have not…

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A: Given the data of students as follows.x3711811129569511want to calculate a 95 % confidence interval

Q: 5. A random sample of 30 males between ages 25 – 40 is taken for a health and fitness study.…

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Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Given,margin of error(E)=0.055

Q: - A programmer plans to develop a new software system. In planning for the operating system that he…

A: given data 90% confidence interval for p. E = 0.05n = ?

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A: Given,

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A: Given data is,

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A: Given the Observed frequency (O) Table,

Q: (c) If the sample size is n= 9, what is likely true about the shape of the population? O A. The…

A: Given: Standard error(σx¯)=6.67Sample size(n)=9

Q: Mode is B IS

A: Mode is most frequent data value

Q: Exercise 1: Suppose you know that income changes for year 2020 for married couples follow a…

A:

Q: erations manager for an airline and you are considering a higher fare level for passengers in aisle…

A: Margin of error =E =5.5%=0.055 90% confidence level

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Q: Hypothesis Test of Proportions On April 15th, 1912, the R.M.S. Titanic sank into the North Atlantic…

A: Given, For first class : n1 = 325 x1 = the passengers who survived p1^ = sample proportion for the…