A 5-number summary for number of hours worked by employees of a company in a week were:     a) What is the value such that 25%of the employees worked more than that value? b) Calculate the range and interquartile range(IQR) of number of hours worked by the employees. c) About what percent of the employees worked between 23 and 53 hours? Complete sentence.

Q: Compare the married and divorced groups in the very happy category with reference to their…

A: Given: A: Married people B: Divorced people X: Very Happy people XA=600  nA=1413     XB=93  nB=485…

Q: iv. What proportion of vehicles with 6 gears are Manual? Construct a side by side bar chart to…

A: It is asked to solve for d and e only. So, we will solve the sub-parts (iv) and (v).

Q: In 2017, 77 out of 100 Americans claimed to have read at least one book during the year. Write this…

A:

Q: When 345 HS students were surveyed, 125 said that they completed a driver's education class prior to…

A:

Q: 104 concert-goers at the Glass House in Pomona, California were asked if they know how to play an…

A: Here it is given that- Number of concert goers  = 104 Number of concert goers who can play an…

Q: 37. Whatis the proportion of single women among those who are 30-44 years old? 38. Of the to tal…

A: The following information can be obtained from the table: Number of single women who are 30-44 years…

Q: 1) Is the amount of weight gained by rats who eat only junk food for four weeks ratio or interval…

A: Solution-: 1) Is the amount of weight gained by rats who eat only junk food for four weeks ratio or…

Q: 1. Reports show that four out of five teenagers asked for a cell phone for Christmas this year. Use…

A:

Q: A Sample of 25 cities have been classified as high or low on their homicide rates and on the number…

A: The formula for chi-square is, χ2=∑fo-fe2fe In the formula fo is the observed frequency, fe is the…

Q: What is the estimate of the common population proportion?

A: To find: The estimate of common population proportion

Q: Report the proportion of the 370 students based on mobile phone brands as a percentage. Apple  269…

A: The percentage of a category can be calculated by dividing the frequency of the category by the…

Q: 1.Fill in the missing information Male Female Total Pet 15 20 No Pet 8. Total 19 43 2.How many males…

A: The solution is in step 2

Q: If a researcher measures two individuals on a ratio scale, then it is impossible to determine how…

A: Ratio scale is a form of quantitative variable measurement scale. Ratio scale makes it possible for…

Q: A company has the pay scales below, with the percent of employees receiving that pay listed. Find…

A: Let n be the number of employees.

Q: Suppose that Mark, a subject in this study, has a Percent Body Fat of 17.4 and a weight of 224.5…

A: The leverage of an observation is based on how much the observation's value on the predictor…

Q: The payroll amounts for 26 major-league baseball teams are shown below. Aprroximately what…

A: From the given histogram, the frequency of the interval 20-30 is 10. The total of all frequencies is…

Q: The five number summary for the average annual wage per employee for each U.S. state and D.C. is…

A: Solution The given data provides five number summary for the average annual wage per employee for…

Q: What percentage of the people who worked were males?

A: men women total work 15 23 80 not work 23 28 51 total 38 93 131 What percentage of the…

Q: A. What was the population in 1850?

A:

Q: Is it more likely to hit the area in white or blue and by how much?

A: The area of the square is= 18×18=324  square inch The radius of the circle is= 2+3+3=8 inches So the…

Q: 33. Say the computed measure of associati following is(are) TRUE about the relationship and quality?

A: The correlation coefficient value will always lies between 0 and 1 r = cov(x,y)σxσycov(x,y) =…

Q: Do these ratios form a proportion? 14 full-time employees for every 6 part-time employees 12…

A:

Q: 29. What is the measure of AD?

A: To Find: Measure of arc AD.

Q: 1. What is a quintile and what do the five quintiles represent in this document? 2. Using an eyeball…

A: 1) A statistical value of any data set representing 20% of the given population is a quintile. In…

Q: Do teachers find their work rewarding and satisfying? An article reports the results of a survey of…

A: From the provided information,

Q: if 540 people preferred walking and 900 people were surveyed how many people preferred running.

A: Given,    People preferred walking = 540 people surveyed are 900.   Calculations,    900 - 540 = 360

Q: How many people surveyed ?

A: The number of people information is included in a sample is the number of people surveyed.

Q: 11. (a)Determine which city has more buildings that are at least 600 feet tall. seattle (b) What…

A: From the Histogram first let us construct frequency distribution for both the city. Tall Buildings…

Q: In Exercises 21–28, determine which of the four levels of measurement (nominal, ordinal, interval,…

A: Given:Baseball statistician Bill James records the years in which the baseball World Series is won…

Q: a What percent of the recruits are between ages 23 and 29 What is the probablity that a recruit is…

A: here from given information mean = 23  standard deviation = 3 here use standard normal distribution…

Q: Based on the information, what is the cumulative relative frequency for the 50.2% - 59.7% change in…

A: It is given that Cumulative frequency for class 50.2-59.7 is = 45 Total frequency = 50

Q: A. What is the sex ratio of male to female regular alcoholic beverage drinkers? B. What proportion…

A: The given data is,   All persons 18 years of age and older Current regular alcoholic beverage…

Q: If a survey has all the numbers of a course a student is enrolled in, would that be a nominal scale,…

A: Ratio scale:It consists of ordered values and equal distances or intervals between the values with…

Q: A marketing company is interested in the proportion of people that will buy a particular product.…

A: We have to write the correct terms .

Q: 6. The hospital would also like to estimate the Blue Shield as their insurance provider. A ra used…

A:

Q: In Exercises 21–28, determine which of the four levels of measurement (nominal, ordinal, interval,…

A: Note:Hey there! Thank you for the question. Since you have not provided the data for “Body…

Q: Determine which of the levels of measurement (nominal, ordinal, ratio) is most appropriate. The…

A: We know that the, Subjects in which college students major may be Mathematics, Statistics, Physics,…

Q: The national housing authority (NHA) wants to investigate the relationship between the size of…

A: From the above data  size of Hours is independent variable X Monthly rent is dependent variable Y…

Q: What proportion of the general population has an IQ of 70 or less?

A: It is an important part of statistics. It is widely used.

Q: The highway department wants to estimate the proportion of vehicles on a Highway at KM 25 between…

A: Population proportion is a fraction of population that is of interest. The value of proportion is…

Q: (a) What proportion of babies born full term are low-birth-weight babies? (b) What proportion of…

A: From the given information, let X be the full term baby birth weights. Here, X follows normally…

Q: e. What is the highest personal messaging frequency among the bottom 20% of employees in terms of…

A: We have to find the values for normal distribution using CLT.

Q: a) What proportion of the sampled wafers had (P 2 8)? b) What proportion of the sampled wafers had…

A: 5. a) The frequency is, Number of Particles Cumulative frequency Frequency Number of Particles…

Q: The mean heignt Of male College Studen ts in a large eity is 68 Inches and the Starder d deviotion…

A: Given information- Population mean, µ = 68 inches Population standard deviation, σ = 15.5 inches…

Q: In a Harris poll of 2302 adults, 14% said they have a tattoo. Approximately how many adults have a…

A: Given information- We have given that in a Harris poll of 2302 adults, 14% have a tattoo. We have to…

Q: 4) Lobbyists of cigarette manufacturing firms claim that the average nicotine content of their…

A: The answer is below,

Q: In Exercises 21–28, determine which of the four levels of measurement (nominal, ordinal, interval,…

A: Four types of measurement scales:Nominal: This type of scaling is used when a variable takes…

Q: (a) What proportion of combined GRE scores can be expected to be over 163.4? (b) What proportion of…

A: mean = 150 s = 8.8

Q: In a survey of 3343 adults aged 57 through 85​ years, it was found that 83.3%of them used at least…

A: Obtain the number of the 3343 subjects used at least one prescription medication. The number of the…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.