cent study on world​ happiness, participants were asked to evaluate their current lives on a scale from 0 to​ 10, where 0 represents the worst possible life and 10 represents the best possible life. The mean response was 5.4 with a standard deviation of 2.3.   ​(a) What response represents the 94th ​percentile? ​(b) What response represents the 58th ​percentile? ​(c) What response represents the first ​quartile?

Q: 3. At the North Carolina State Fair there is a game where you win a prize if you knock over 3 cans…

A: given data P(knock over all 3 cans) = p = 0.25sample size (n) = 20 x = no. of people knock all three…

Q: What’s the probability of picking at most 3 heads in 10 tosses of a coin?

A:

Q: The colors: green, blue, red, white, and brown are what type of data? Oratio O nominal interval…

A: Nominal data: Nominal data consists of two or more named categories into which the object are…

Q: A researcher is testing the effect of a new cold and flu medication on reaction time. A sample of…

A: It is given that: M=231.37s=28.18n=16 The objective is to validate if the average reaction time…

Q: income higher than $48,349. Identify whether each of the following five statements is true or false.…

A: The required answers to the question asked is as in steps below.

Q: A normal distribution is informally described as a probability distribution that is "bell-shaped"…

A: GivenA normal distribution is informally described as a probability distribution that is…

Q: statistics professor plans classes so carefully that the lengths of her classes are uniformly…

A: Given,A random variable X~U(50,52)f(X)=12     ;   50≤X≤52

Q: Researchers wanted to know how the size of a bowl affects how much ice cream people tend to scoop…

A: Group 1 who was given a small bowl of ice cream Mean=6.2 SD=1.8, n1=15 Group 2 who was given a big…

Q: The measure of center that is not influenced by outliers, very large or small data is the: O median…

A: There are the following measures of central tendency. Mean Median Mode Midrange The formula for…

Q: Suppose students' ages follow a normal distribution with a mean of 21 years old and a standard…

A:

Q: Suppose that an airline uses a seat width of 16.8 in. Assume men have hip breadths that are normally…

A: given data normal distributionμ = 14.8σ = 0.9n = 115

Q: An experimental diet to induce weight loss was followed for one week by a randomly selected group of…

A: Given information: The data for weight loss for a group of 12 students are given.

Q: ICA 8-A ANOVA educat.nmu.edu Complete the source table for the followi C Age 18 19 18 Major Psych…

A: The data relating to age and Major is given. Need to construct an ANOVA table for the given data

Q: A survey found that​ women's heights are normally distributed with mean 63.6 in and standard…

A: Answer  Given  Mean =63.6 standard deviation =2.5 We know that Z-score:  Z =[x-mu]/[σ] z*σ =[x-mu]…

Q: nd the mode of the following number of states randomly selected travelers at a service plaza visited…

A: here data score is given , 18,13,8,8,13,10,13,10,9,18. we have to find out the mode for the given…

Q: For a 95% confidence interval, what value will you use for t*? Group of answer choices 1.960 2.030…

A: There are two types of houses, houses with a view of a nearby lake and houses with no view of the…

Q: QUESTION 25 Which of the following would produce the widest confidence interval for u? 97%…

A: Since we know that the confidence interval for population mean is given by x̅  ±…

Q: A population of values has an unknown distribution with = 131.5 and σ = 86.6. You intend to draw a…

A: Given information n=65, population mean μ=131.5, standard deviations σ=86.6

Q: In a survey, 29 people were asked how much they spent on their child's last birthday gift. The…

A: Answer  Given  Confidence interval CI = 80%   α=1-0.80    =0.2 sample size [n] =29  degree of…

Q: The "pizza connection" refers to the observation that in a major city, the cost of a slice of pizza…

A: Introduction The CPI stands for Consumer Price Index.

Q: A study examined whether a citrus smell made a difference on memory recall. The study reports the…

A: Given that, The claim is citrus smell made difference on memory recall. t143=1.78 The degrees of…

Q: Midland National Bank selected a sample of 40 student checking accounts. Below are their…

A: Given data :…

Q: A quality control technician is checking the weights (in grams) of a Nescafe Gold Blend Coffee. She…

A: Answer  Given  50.3,49.6,51.3,49.8,51.3,49.9,51.1 n=7 sample size denoted as [n]. confidence…

Q: These are data of patients' age at hospital XYZ. Interval of Age (in Frequency years) 60-68 51-59…

A: Answer:- Given frequency distribution table is, Interval of age (in years) Frequency (f) Specific…

Q: A researcher uses an anonymous survey to investigate the study habits of American college students.…

A: The survey is conducted to investigate the study habits of American college students.

Q: The annual expenditures for Medicare (in billions of dollars) by the US Government for selected…

A: Given data: Year Billion $ 1980 37 1985 72 1990 111 1995 181 2000 197 2005 330

Q: How do you set up the model to use Goal Seek?

A: Monica takes one hour  Hilary takes one hour  If they both work together than how much time they…

Q: 1 In a box of marbles, there are 16 yellow marbles, 20 blue marbles, 12 red marbles and 12 black…

A: Note: As per the Bartelby guidelines one question with only three sub-parts can be answered. Kindly…

Q: Categorize these measures of zoom teaching according to level: nominal, ordinal, interval or ratio.…

A: Given that Categorize these measures of zoom teaching according to level: nominal, ordinal, interval…

Q: Express the confidence interval 75.7% < p < 85.1% in the form of p± E. %+ Submit Question

A: We have given Information, Confidence interval for population proportion p is: 75.7%&lt;p&lt;85.1%…

Q: A national health organization says that 30% of teenagers have tried smoking cigarettes. A health…

A: given data N =3500n = 280x = 56claim : p = 0.30

Q: Determine whether the statement makes sense (or is clearly true) or does not make sense (or is…

A: Introduction The absolute error gives an indication of the measurement's uncertainty.

Q: Assume that a randomly selected subject is given a bone density test. Bone density test scores are…

A: We have given information, Let Z denote the bone density test score are normally distributed with a…

Q: Find The mean, median; mode & standard deviation For the following numbers. -2.3578

A: Given that : Sample data :2,3,5,7,8

Q: Suppose you have a bag containing 10 red balls, 8 blue balls, and 6 green balls. If you draw 2 balls…

A: It is given that the no. of balls of the colors red, blue, and green are 10, 8, and 6 respectively.…

Q: The following output is from Excel. Executives rated the service they received in a variety of…

A: The question is about ANOVA Given : F = 11.64423 p value = 0.000148     To find : Test the claim…

Q: A jar holds 19 cookies, 13 are chocolate-chip cookies, and 6 are brussel-spout-with-turnip-chips…

A: Given that, The random variable X is selecting the brussel-spout-with-turnip-chips cookie There is a…

Q: The Capital Asset Pricing Model (CAPM) is a financial model that assumes returns on a portfolio are…

A: Given that.   X~N( μ , ?)   μ=14.7 , ?=33   Z-score =( x - μ )/?

Q: How do you evaluate the coefficients for the independent variables against the size and statistical…

A: To test the hypothesis that location is the most important factor in determining the price of a…

Q: Grear Tire Company has produced a new tire with an estimated mean lifetime mileage of 35,500 miles.…

A: Given that: Population mean, μ=35500 Population standard deviation, σ=4500

Q: A sample of 800 computer chips revealed that 40 % of the chips do not fail in the first 1000 hours…

A: Given : population proportion , p = 40% = 0.40

Q: he management of Lindiwe Accounting Services are concerned about the increase in overtime hours…

A: Data is given :  Over time hours : (Y) = {478,322,405,308,505,308} My = (478+....308)/6 My = 387.67…

Q: Find the confidence level related to the critical value f/2= 2.65 where the sample size n =10. 93.5%…

A: We have given thattα/2=2.65n=10df=n-1=10-1=9We have to findconfidence level is =?

Q: 6) The the probability it will rain Saturday is 40%, probability it will rain Sunday is 60%% There's…

A: We have given that P(Saturday)=40%=0.40 P(Sunday)=60%=0.60 P(Saturday and Sunday)=20%=0.20

Q: Most people think that the event “having a boy baby" and the event "having a girl baby" are equally…

A: We have given that n=2, p=51.3%=0.513 X~Binonial(n=2, p=0.513) Let X be the number of children are…

Q: A student is to select three courses for next semester. If this student decides to…

A: Given that 7 economic courses, 9 mathematics courses, and 4 computer courses, We have to select 3…

Q: A publishing company is studying the sales of various franchises in their chain of stores. A…

A: Given The data is as follows: The 90%, 95%, 97% and 99% CI has been computed.

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Answer:- Given, The readings at freezing on a batch of thermometers are normally distributed with a…

Q: 5. Random variables X and Y have the joint PDF shown below: -1.0 y 2.0 1.0 -1.0 -2.0 1.0 fxy(x, y) =…

A:

Q: How does the concept of conditional probability impact decision making in real-world scenarios, and…

A: Conditional probability can be used to calculate the probability of an event A occurring, given that…