5. Students from Windy Middle went to a store that sold watches and glasses. The colors available for either item were blue or green. The two-way table displays the frequency of purchases made by 800 students. Students' Purchases What percent of the glasses purchased was green? Color Watches Glasses Total Blue 0.200 0.325 0.525 Green 0.300 0.175 0.475 % Answer: Total 0.500 0.500 1.000

Q: The director of library services at a college did a survey of types of books (by subject) in the…

A: a)The level of significance is 5%.The null and alternative hypotheses are stated below:H0: The…

Q: In a survey, editors of a magazine asked 200 people whether or not they smoke and whether or not…

A:

Q: b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to…

A: Percentage O E (O-E)^2 (O-E)^2/E 0.32 270 284.16 200.5056 0.70561 0.25 229 222 49 0.22072 0.2…

Q: 5. According to the U.S. Department of Labor, as of May 2009 the median annual salary for a police…

A: Descriptive statistics can be used for explanatory analytics purposes. Calculating central…

Q: A college finds that 12% of students have taken a distance learning class, 24% of students are…

A: Given information Percentage of students taking distance learning class = 12% Percentage of…

Q: 1. A veterinarian keeps track of the types of animals treated by an animal clinic. The following…

A: In this case, we know the animal clinic treats 230 animals in a month. Therefore, If Dog = 230, the…

Q: e director of library services at a college did a survey of types of books (by subject) in the…

A: Subject Area % Observerd Expected (O-E)^2 (O-E)^2/E Business 32% 299 284.16 220.2256 0.775006…

Q: A market study produces the following results: * 80% of respondents drink coffee or tea or both *…

A: The given information is as follows: 80% of respondents drink coffee or tea or both. 60% of…

Q: marketing survey of consumers’ soft-drink preferences collected the following data: • 75 liked cola,…

A:

Q: The results of a survey of 45 students and the foreign language they are studying are shown in the…

A: Given, The two-way frequency table is shown as:

Q: Sally Firefly purchases hardwood lumber for a custom furniture-building shop. She uses three…

A: Given: The overall obtained defective piles is, P(D)=0.2 The percent of defective lumber came from…

Q: Among those respondents who did not travel inside, what proportion is holding graduate degree. a)…

A: We have given that the table of travel inside and education level.   Note: According to Bartleby…

Q: 3.7 The article "Housework around the World" (USA Today, September 15, 2009) included the percentage…

A: (a) Enter the data into the excel sheet as follows: Select Insert> charts>All charts…

Q: In a survey, 200 shoppers were asked whether they have access to a computer at home and if they have…

A:

Q: he director of library services at a college did a survey of types of books (by subject) in the…

A: The sampling distribution is used in the problem is, chi square.

Q: b. Compare the graduation rate (proportion to graduate) of students on an athletic scholarship to…

A: Here identifying comparison between same group or different group

Q: . At a local ice-cream store, 210 people were surveyed on whether they preferred eating ice cream…

A: The total number of people is n = 210.

Q: Question 25, problem in photos!

A: Obtain the proportion of the 8th graders has cell phones:Total number of 8th graders is, 291…

Q: According to the following two way table, what percentage of people in the sample is taking naps.…

A: P( taking naps ) = ?

Q: port club, there are 70% males’ members and 30% females’ members. 60% of males play football and 40%…

A: Given: In a sport club, there are 70% males’ members and 30% females’ members. 60% of males play…

Q: 1. A sample of 112 people were asked their political belliefs and their diet choices. The results…

A: Given information   Omnivore Vegetarian Total Conservative  20 2 22 Moderate 40 8 48…

Q: 1.44 A local public school encourages, but does not require, stu- dents to wear uniforms. The…

A: Answer :

Q: Animal Testing. "Is it right to use animals for medical testing if it might save human lives?" The…

A: Plan: The study seeks to find whether there is any association between the two categories “gender”…

Q: (a) What proportion of 18- to 34-year-old respondents are more likely to buy when made in their…

A: In a poll, a random sample of 2163 adults (aged 18 and over) was asked, "When you see an ad…

Q: According to Newsweek, the natural ratio of girls to boys’ birth rate is 100:105 or 48.8%. In China,…

A: 1. a. Let p is defined as the population proportion of girls born in china. The claim of the test is…

Q: sample of fifteen 7-year old boys shows their favorite superheroes:   Spiderman Captain America…

A:

Q: In a sample of 100 children, 6 were found to be Vitamin D deficient. In your work below, use the…

A: Note:  Since we only answer up to 3 sub-parts, we'll answer the first 3. Please resubmit the…

Q: Distance from fire station (miles) 2.9 1.3 4.4 1.8 2.6 5.1 Fire damage ($ thousands) 26.1…

A: As per the Bartleby guildlines we are supposed to do only first question Given that  Let X denotes…

Q: 8. A sociologist chose 300 students at random from each of two schools and asked each student how…

A: Median: Middle value when data arranged in ascending order

Q: . Seniors Prior to graduation, a high school class wassurveyed about its plans. The following table…

A: a. The table summarizes the results for white and minority students. Calculation: Total number of…

Q: A local doctors office recorded the wait times for 70 patients on a saturday afternoon and organized…

A: Total People = 70 Given Histogram

Q: The table below shows the percent of golfers who participate in other activities. OTHER ACTIVITIES…

A: Answer We would expect 58% of 52 = (58/100) × 50 = 29 golfers to watch sports on TV

Q: A group of 150 adults were asked whether they prefer getting their news from newspapers or from TV.…

A: Given total number of adults=150 Preferred newspaper women=27 Preffered news paper men=36 Preffered…

Q: d. The customers were asked to respond to the following survey question, determine if the question…

A: Yes , the question asked to the customer is biased . As it is obvious that restaurants charges a…

Q: The two-way table below shows teenage driver gender and whether or not the respondent had texted at…

A: Given data in the problem is  Total no.of male and female drivers=32 Texted atleast once=12  Had not…

Q: .At a local ice-cream store, 210 people were surveyed on whether they preferred eating ice cream…

A: The total number of people is n = 210.

Q: 19. Schools are ranked on their retention rate, the percent of students that come back from one year…

A: The thing misleading is that from sophomore to junior the retention rate is 92% and among those 92%…

Q: ercent of Books on Subject in Circulation Library on This Subject Number of Books in Sample on This…

A: The data given for the results is listed below Subject Area Percent of Books on Subject in…

Q: A local country club has a membership of 600 and operates facilities that include an 18-hole…

A: From the information, 60% regularly use the golf course, 48% regularly use the tennis courts, and…

Q: A group of 91 students were surveyed about the courses they were taking at their college with the…

A: Ans# -Given a group of 91 students were surveyed about the courses they were taking at their college…

Q: 10.59 To tip or not to tip. A study of tipping behaviors examined the relationship between the color…

A: The random variable tip follows binomial distribution. There are two independent samples which are…

Q: The director of library services at a college did a survey of types of books (by subject) in the…

A: a) Level of significance: From the given information, α =0.05. Null and alternative hypotheses are…

Q: 5. What is the joint relative frequency of track club members who are boys that prefer relays? *…

A:

Q: The director of library services at a college did a survey of types of books (by subject) in the…

A: To determine whether the subject distribution of books in the library is the same as distribution of…

Q: If breed and passing are independent of each other, about what percentage of each breed would pass…

A: Solution: Given: The percentage that dog passed the test = 62% Here, breed and passing of dog are…

Q: Human blood is classified by the presence or absence of three main antigens (A, B, and Rh). When a…

A: Probability of presence of Rh antigen (Rh+);…

Q: A union’s executive conducted a survey of its members to determine what the members felt the…

A: From the provided information, Let J represent the event that job security was an important issue.…

Q: Do people who are interested and environmental issues visit museums more often than people who are…

A: The hypothesis is, Null hypothesis: H0:The number of visits to a science museum is not related to…

Q: Is there a difference in the means of the three groups? If so, which groups show significant…

A: t-test is used to compare the means of two groups, so then ANOVA is some sort extension that allows…

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.