b) Incomes of a group of 2000 employees in a certain company were found to be normally distributed with mean Rs.5500 and standard deviation Rs 1000. Find the expected number of employees with income. i) below 5000 ii) above 8000 iii) the lowest income of high ranked 15% of employers.

Q: The boxplots below illustrate the distribution of graduation rates for a sample of public…

A: The box plot essentially determines the distribution in terms of the quartiles. Consider a box…

Q: 20. We are interested in the relationship between years of post-secondary education (x), and annual…

A: The regression equation is

Q: A power company is installing utility poles that are supposed to have a height of 40 feet. The…

A: Hypothesized value of population mean Sample size Significance level Sample…

Q: The graph below represents the relationship between cigarettes consumed per capita in 1930 versus…

A:

Q: A random sample of patient records from a large medical facility were taken and subjects were…

A: The null and alternative hypotheses are:

Q: Consider the following sample data.   Sample A: 8, 16, 24 Sample B: 78, 86, 94 Sample C: 1,085;…

A: From the above given data the following solution is provided below:

Q: We are curious to see if college students get less sleep than the average person. It is known from…

A: From the provided information,

Q: We are given with a distribution which is confirmed to be Poisson distribution with parameter m.…

A: From the above given data the following solution is provided below:

Q: Use the data below to complete the following calculations. 42 Emf= Emf= 2 (Σmg)*=[ mf m f 68 58 17…

A: The give frequency table is,m4268173570f735855385

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A: From the provided information,Sample size (n) = 111And p = 0.22

Q: Equation d²x di² a) b) d) of motion of a Viscous damped vibration is as follows: dx + 12x 0. Find…

A: From the above given data the following solution is provided below:

Q: On its website, a property management company claims that the median monthly rent for apartments on…

A: Population mean, Sample mean, Sample size, n = 15Sample standard deviation, s = 21

Q: Interpret the value 28.2 in context 28.2 is the average number of calories in a 12-ounce can of…

A: It is given asThe least-squares regression line isCalories = 8.25 + 28.2*Alcohol Content

Q: Consider the following table: Among Treatments Error Total SS DF 5 9059.37 17 MS F 1122.69 ? 287.16…

A: A partially completed ANOVA table is given.We have to fill the missing values.This is One-way ANOVA…

Q: A student received the following grades last semester. Find the student's semester grade point…

A: CourseCredits(wi)Grade/Points(xi)Statistics4A/4.0Physics5F/0.0Sociology3B/3.0Literature2B/3.0Tennis1…

Q: Do social recommendations increase ad effectiveness? A study of online video viewers compared…

A: Correctly recalled the brandArrival method YesNoRecommendation 30388Browsing 13879

Q: Identify the lower class​ limits, upper class​ limits, class​ width, class​ midpoints, and class…

A: Age (yr)Frequency20-242925-293330-341335-39440-44645-49250-542

Q: The marketing manager of a firm that produces laundry products decides to test market a new laundry…

A: Claim: There is difference in mean sales per market per month between the two regions.

Q: The local Ice Cream shop keeps a track of how much ice cream they sell vs. the temperature on that…

A: Given data:MonthTemperature (in Ferenheit)Ice-Cream…

Q: Which plot below has a five-number summary of 5, 6, 7, 9, 12 and an interquartile range of 6? 1 4 5…

A: We have given the five number summary5,6,7,9,12 and interquartile range of 6

Q: 3: Which of the following scatterplots could represent a data set with a correlation coefficient…

A: We have given the correlation coefficient r = -0.9

Q: Let X1, X2...... X be a random sample from a distribution with mean and variance 2. Consider the…

A: Let…

Q: 13.) In the weighted voting system below, the weights represent voters A, B, C, and so on, in that…

A: 13) weighted voting system [28: 4,4,7,7,10] The critical voter(s) in a winning coalition are the…

Q: 6.  IQ is a measure of reasoning which is normally distributed with a mean of 100 and a standard…

A: IQ and reasoning are regularly distributed with a mean of 100 and a standard deviation of 15. Then…

Q: Determine the following estimate without using a calculator. Then use a calculator to perform the…

A: Number of hours worked per week is 40.Hourly wage is .

Q: Suppose the amount of time teenagers spend watching TV is normally distributed. How should we…

A: It is given asPopulation mean = 20Sample mean = 15Sample size = 50Sample standard deviation = 6

Q: the right includes data from 46 candies, and 8 of them are red. The company that makes the candy…

A: It is given asFavourable cases, x = 8Sample size, n = 46Confidence level = 95%

Q: Many extremely attractive people live in LA. Something about physically being in LA must be causing…

A: Given statement : Many extremely attractive people live in LA. Something about physically being in…

Q: You may need to use the appropriate appendix table or technology to aliwel t In order to determine…

A: Sample size n =70Sample mean=20.5Population standard deviation =5.25

Q: m The discrete random variable X is the number of passengers waiting at a bus stop. The table below…

A: Solution-:Let, X - be the discrete random variableThe probability distribution of X is as below:…

Q: Australia is the first country to make wearing helmets while cycling mandatory. Mandatory Helmet…

A: Given the random selection of 27 months proportion of bicycle-related head injuries in the…

Q: Write the appropriate hypotheses if the researchers are interested in whether there is a…

A: The researchers are interested in whether there is a relationship between smoking status and…

Q: Please do not give solution in image format thanku During the first 13 weeks of the television…

A: The question is about categorical data analysis.Given :To find :Test whether the viewing audience…

Q: Using the normal distribution table, answer: What is the probability that a random variable x is…

A: We have to find the probability  that a random variablea)x is greater than 2.35b) less than -1.00c)…

Q: The durations (minutes) of 26 electric power outages in the community of Sonando Heights over the…

A: The given data is as follows: 364924662512551250414434210233201450222182689261420

Q: 1. Studies have shown that gasoline use for compact cars sold in the United States is normally…

A:

Q: Trial 1 2 3 Vol of Commercial Vinegar (mL) 5.00 where, 5.00 5.00 ▼ Standard deviation hint The…

A: M Acetic Acid(M)UnroundedRounded0.2925760.2930.04645210.04650.04645210.0465

Q: Consider the value of t such that 0.025 of the area under the curve is to the right of t. Step 2 of…

A: The area under the curve is to right of : .The degrees of freedom: .

Q: A publisher reports that 38% of their readers own a particular make of car. A marketing executive…

A: The claimed proportion of readers woning a particular car is 38% or 0.38.The sample size, n=320.The…

Q: 4. A survey asks for the exact amount of time you were fully asleep the previous night in hours,…

A: Here given that a survey asks for the exact amount of time you were fully asleep the previous night…

Q: Once down to about 15, the world’s only wild flock of whooping cranes now numbers a record 237 birds…

A: The question is about hypothesis testing.Given :Randomly selected no. of eggs ( n ) = 5To find :a )…

Q: As a marketing class term project, Jim is investigating whether senior students eat less frequently…

A: FreshmanSenior115181312157516102081591481719971618

Q: 1. Four friends are playing video games which vary in difficulty from hard to average to easy. The…

A: Consider the given data that shows the scores on the video games: FriendsVideo…

Q: The data given to the right includes data from 40 candies, and 5 of them are red. The company that…

A: Total no. of candies ( n ) = 40No. of candies which are red ( x ) = 5Confidence level = 0.90To find…

Q: A marketing research company desires to know the mean consumption of milk per week among males over…

A: Here, mean consumption of milk per week among males over age 22 is given as 4 liters, margin of…

Q: The durations (minutes) of 26 electric power outages in the community of Sonando Heights over the…

A: The given data is as follows: 3345266526116185041849369931221252251192485301618

Q: Consider the following table: Among Treatments Error Total SS ? DF 5 9059.37 17 MS 1122.69 287.16 F…

A: Given table , We have to calculate the value of  sum of  squares among treatments () and the sum of…

Q: 8. Suppose that in this game you need to choose numbers correctly by drawing a card with a number on…

A: Given that : Probability of success in each trial (p)= 0.21 Number of trials ( n) = 10 Probability…

Q: We are curious to see if college students get less sleep than the average person. It is known from…

A: From the provided information,Sample size (n) = 100Population standard deviation (σ) = 1Sample mean…

Q: An animal is chosen at random which is spay/neutered, what is the probability that this animal is a…

A: It is given as the survey data in a table form.The total number of animals = 117