run t- test with given data:    GROUP   1          GROUP 2 1.3 6.5 2.5 8.7 2.3 9.8 8.1 10.2 5 7.9 7 6.5 7.5 8.7 5.2 7.9 4.4 8.7 7.6 9.1

Q: Joseph is statistics instructor. He is interested in seeing if his fall class or spring class tends…

A: B. 0.0174

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A: Solution: The mean percent of African American persons living below the poverty level is required.…

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A:

Q: For the data set 2 20 11 26 10 5 6. 15 13 19 12 10 3 17 24 27 23 18 12 9. 26 31 10 The 67th…

A:

Q: A math class got the following scores on a test. What percentage of students received a score of 85…

A: From table Cumulative frequency for score below or 85 is 9 Total students=14

Q: 3.2 5.0 2.7 3.5 2.6 4.4 3.4 3.8 4.2 5.0 3.0 2.2 3.6 4.1 3.6 2.6 4.1 4.3 3.8 4.3 2.6 3.0 2.7 5.2 1.7…

A: Solution

Q: a. Conduct a test of independence to determine whether the hours of sleep on weeknights are…

A: The Chi-square test is used to test the independence of the categorical variables. It is a…

Q: or the dataset in the table. x y 1 15 2 16 3 16 5 18 8 18 9 16 12 27 15 29 18 20 20 33 O x₁=2,…

A: Given dividing above data into 3 segments of 3,4,3 values  X dada set 1st Segment=(1,2,3) 2nd…

Q: 5.8 6.6 7.3 8.2 10 5.5 6. 6.5 7.5 8 8.5 1. 9. 9.5 10.5 11 5.8 6.5 7.3 8.3 10 5.5 6. 6.5 7.5 8 8.5…

A: Median of the data point is 7.3  To check the correct box plot we will find the median of data…

Q: Given the following Data Set for a Sample, build a 83% Cl=(a, b) for the Average. X=[3.2, 3.7, 1.9,…

A: The objective of this question is to calculate the 83% confidence interval for the average of the…

Q: The data to the right represent the number of chocolate chips per cookie in a random sample of a…

A: For the given data Select the correct choice

Q: Consider the following stem and leaf plot. Stem 1 2 3 4 5 6 7 00 8 9 Leaves 8 8 9 1 1 3 1 3 0 3 6 1…

A: Stem and Leaf PlotA stem and leaf plot is a unique table where values of data are split into a stem…

Q: Given data: 2.1, 2.8, 3.7, 4.1, 4.6, 5.8, 6.3, 7.4, 8.2, 8.5, 9.6, 10.1, 10.3, 10.9, 11.0, 11.8,…

A: Given: Data:

Q: given data: 2.1, 2.8, 3.7, 4.1, 4.6, 5.8, 6.3, 7.4, 8.2, 8.5, 9.6, 10.1, 10.3, 10.9, 11.0, 11.8,…

A: Given data: 2.1, 2.8, 3.7, 4.1, 4.6, 5.8, 6.3, 7.4, 8.2, 8.5, 9.6, 10.1, 10.3, 10.9, 11.0, 11.8,…

Q: Given the following Data Set for a Sample, build a 83% Cl=(a, b) for the Average. X=[3.2, 3.7, 1.9,…

A: The objective of this question is to calculate the 83% confidence interval for the average of the…

Q: Here is a data set: 1.75 2.42 2.07 2.15 2.85 2.07 2.23 1.03 1.32 2.25 2.19 3.45 2.46 2.11 1.03 1.64…

A: The 10 possible class intervals with width such that lower class is mutliples of width are as…

Q: A report gave the accompanying data for the 50 U.S. states on the percentage of the population that…

A: Data : N = 50 (even){…

Q: Mouse weights. Find the mean and median for the data in the following table. Interval 41.5 - 43.5…

A: To find: Mean and median

Q: In a study of the relationship between level education and income the following data was obtained.…

A: We want to find goodness of fit test to find the association between the variables.

Q: x – X .084 (x – x) (y – ý) (х — ) (у — У) y – y 9.0 8.1 1.192 0.007 1.420 0.099 7.0 6.0 -1.916…

A: The chart for Age and Selling price of cars is given. x: Age y: Selling price mean (x) = 8.916 and…

Q: Consider the following data: 3.2, 3.5, 3.5, 3.5, 3.6, 3.7, 3.7, 3.8, 3.8, 3.9, 3.9, 3.9, 4, 4, 4,…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: a. What percent of people waited less than 15 min. b. What percent of people waited less than 20…

A: Hi, we are supposed to answer three subparts at a time. Since you have not mentioned which subpart…

Q: given data: 2.1, 2.8, 3.7, 4.1, 4.6, 5.8, 6.3, 7.4, 8.2, 8.5, 9.6, 10.1, 10.3, 10.9, 11.0, 11.8,…

A: 5a) There are 7 data values below the value 7.4. The percentile of the data value 7.4 is,…

Q: 6.3, 7.0, 7.5, 9.0, 7.7, 7.8, 7.1, 8.1 6.6, 7.2, 8.3, 8.5, 6.9, 7.7, 8.0, 7.3 8.6, 7.1, 8.7, 6.4,…

A: Given: The data given is as below 6.3 7 7.5 9 7.7 7.8 7.1 8.1 6.6 7.2 8.3…

Q: What is the mode for this data set

A: The data that has the highest frequency is called mode. In other words, it is the most frequent…

Q: Consider the following stem-and-leaf diagram: Stem Leaf 13 6.9.9 14 14 2.3.3.3.4 6.7.8.9 15 1.3.4 15…

A: Let's break down the process of finding the median of the given data set step by step:1. Data…

Q: a) Two data sets both have a mean of 50. One has a standard deviation of 2 and the other has a…

A: a) Provided information, two data sets have mean as 50. One is having standard deviation as 2 and…

Q: (b) Levenes Test was applied to the data that is summarized in the boxplots. This produced a P-value…

A: We test the null hypothesis Ho:μDecaf=μcaf Tested against the alternative hypothesis…

Q: Weight (pounds) Contestant Race Time Standing in Prize Number Gender Grade (Seconds) Race Money…

A: Introduction - Mean or average = Sum of observations total number of observations

Q: A violin student records the number of hours she spends practicing during each of nine consecutive…

A: