Age Group        Rock      Pop    Classical   15 -25                 50         85         73   23-35                  68         91         60   35-45                  90         74         77 The above chart shows the age group and preferred type of music of 668 randomly selected people. what would the p-value be if a test for independency was performed. Round to two places.

Q: Following are the playback times (in hours) for a sample of 20 MP3 players. 13, 15, 21, 21, 23, 23,…

A:

Q: In a poll of 513 human resource professionals, 45.8% said that body piercings and tattoos were big…

A: sample size(n)=513sample proportion()=45.8%=0.458

Q: You take a sample of the heights (in inches) of 12 professional basketball players. The data are:…

A: Given data: 79, 76, 77, 79, 81, 83, 79, 76, 78, 83, 87, 85.

Q: You may need to use the appropriate appendix table or technology to answer this question. A consumer…

A: The sample size for supermarket 1 is 280, sample mean is 83 and sample size for supermarket 2 is 300…

Q: 5. Rank each football team by their mean scores. If you could join any of the three teams, which…

A: # we are entitled to solve one question at a time, please resubmit the other questions if you wish…

Q: Three students want to estimate the mean word length of the same book. To do this, each student…

A: Given Data: Let us consider the given table, Sample Word length Sample Mean 1 5,5,2,6,6 4.8 2…

Q: True or False: The situation below probably describes a sample. The names of all students in MATH…

A: The objective of the question is to determine whether the given situation describes a sample or a…

Q: when you have to find a sample number. you usually round to the whole number no matter how small the…

A: We have to obtain the method for obtaining the sample size when the sample number came in the…

Q: Following are the playback times (in hours) for a sample of 20 MP3 players. 10, 15, 21, 21, 23, 23,…

A: Given information- We have given a data set- X – 10, 15, 21, 21, 23, 23, 24, 26, 27, 30, 30, 31, 37,…

Q: How many scores are represented in the blue section of the boxplot? Answer:

A: Introduction A box and whisker plot is a graphical representation of the 5-no. summary of the data.

Q: At a factory that produces switches, a batch of 4000 switches has just been produced. To check the…

A: Given that a sample of 175 switches was picked and among them 9 were defective.  So based on this…

Q: Find the population mean or sample mean as indicated. Sample: 15, 9, 4, 5, 22 D Select the correct…

A: Here we need to find the sample mean.

Q: I am doing a survey and want to know how many siblings each participant has. Participant 3 leaves…

A: Introduction: Consider that there are n participants in the study. Each participant is asked how…

Q: 6. Five hundred college graduates were asked how much they donate to their alma mater on an annual…

A: Mode: Mode may be defined as the maximum number of observation

Q: ❎✅♦️♦️♦️✅✅♦️

A: given confidence  level 99% margin of error = 5.5% = 0.055 z value for 99% confidence level is 2.576…

Q: If you want to conduct a study to determine how much people exercise from a certain town, what would…

A: In this scenario, it is appropriate to call randomly selected cell phone numbers of people living in…

Q: A boxplot for a set of 72 scores is given below. 5 T B 7 8 9 DATA 10 11 12 How many scores are…

A: given box plot for a set of 72 scores; Q1 (first quartile), M (median) and Q3 (third quartile)

Q: pose that 45% of people nationwide support capital punishment. If we take a sample from the…

A: 45% of people nationwide support capital punishment. Sample proportion is  p = 0.45

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

A:

Q: What is the mean and symbol of the following sample of numbers? 1,1,39,2,2

A:

Q: A boxplot for a set of 80 scores is given below. How many scores are represented in the blue section…

A: Given total number of scores =80

Q: The FiveThirtyEight website did a survey of people about their attitudes about the pandemic and…

A:

Q: Find the mode of the following amounts of exercise (in hours) randomly selected runners completed…

A: Find the mode of the following amounts of exercise (in hours) randomly selected runners completed…

Q: Shown below are the lengths in minutes of 6 randomly selected Disney movies. Use the data to compute…

A: It is given that the lengths of the 6 randomly selected Disney movies are: Bambi-69, Cinderalla=74,…

Q: Studying the 5-number summary of test scores of two groups A and B in the State Assessment. Which…

A: Solution The given diagram shows the box plot of two data . We find median for the both data is same…

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

A:

Q: An ice hockey team is considering changing their team name and mascot and would like to measure city…

A: Voluntary response sampling means samples are self chosen. Which means people are volunteered to…

Q: Find the population mean or sample mean as indicated. Sample: 24, 17, 2, 12, 25 Select the correct…

A: Given samples are 24,17,2,12,25

Bar Graphs

A bar graph is a chart or graphical representation of data. A bar chart, also known as a bar graph, is a graph or chart that displays categorical data using rectangular bars with heights or lengths equal to the values they represent. Typically, bar graphs show categorical and numerical variables grouped in class intervals. A bar graph is useful for comparing and analyzing a set of data.