Classify the data a continuous or discrete. The number of e mails received in a given day.

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A:

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A: From the question, A psychologist created a questionnaire to assess people's aggression. Assume that…

Q: The distribution of scores on a standardized aptitude test is approximately normal with a mean of…

A: GivenMean(μ)=500standard deviation(σ)=95

Q: 3. State or specify the null and alternative hypotheses in the following (use complete statements,…

A: The answer is attached below.

Q: Assume X has a binomial distribution. Use the binomial formula, tables, or technology to calculate…

A: GivenAssume X has a Binomial distributionX~Binomial(n,p)P(X=x)=(nx)×px×(1-p)n-x    ; x=0,1,...,n

Q: A bag of 32 tulip bulbs contains 14 red tulip bulbs, 8 yellow tulip bulbs, and 10 purple tulip…

A: 14 - red 8 - yellow 10 - purple _____________________ 32 total bulbs   select 2 without replacement

Q: A novel on the Amazon.com Number of Stars 1 2 3 4 5 web site has the following ratings, in number of…

A: Given data: Number of stars Frequency 1 7 2 4 3 20 4 9 5 10

Q: 9. The following table consists of 88 cardio Medium exercises. Find the probability of a randomly…

A:

Q: Risk taking is an important part of investing. In order to make suitable investment decisions on…

A: From the provided information, Mean (µ) = 50.5 Standard deviation (σ) = 16 X~N (50.5, 16) Here X be…

Q: I need help with providing the formula and answer... Question: If your stats class contains 10…

A: 10 business majors 6 - biology majors 4 - math majors ________________________ 20 - total students…

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A: Given: Die is rolled 40 times Number of 1's coming is success   Note:As per guidelines only first…

Q: 8.40 Suppose that the random variable Y is an observation from a normal distribution with unknown…

A: Here, given that observations from normal distribution with unknown mean and variance 1. We know…

Q: A magazine used the summated rating of 10 restaurants to predict the cost of a restaurant meal. For…

A:

Q: ( t) Consider the life table below. Compute the requested value assuming a 4% effective annual…

A: Given the life table as Age x lx 55 7870.69 56 7641.44 57 7418.88 58 7202.79 59 6993…

Q: Determine whether the following procedure results in a binomial distribution or a distribution that…

A:

Q: An auto maker is interested in information about how long transmissions last. A sample of…

A: From the given information we have Sample size (n) = 46Sample mean (x̅) = 150.7 Variance (s2) =…

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Q: The last digit of the heights of 58 statistics students were obtained as part of an experiment…

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Q: A magazine publishes restaurant ratings for various locations around the world. The magazine rates…

A: Given information- We have given that the magazine rates the restaurants for food, decor, service,…

Q: (a) above 30, (b) above 20, (c) above 18,

A: given datanormal distributionμ=17σ=5

Q: The given by and probability density function a) Its f(y) Cumulative feys = 1 e 0 Elsewhere.…

A: Given pdf  y~exp(1/θ)

Q: K A binomial probability experiment is conducted with the given parameters. Compute the probability…

A: Using Binomial distribution P(X=x) = nCx p^x (1-p)^n-x

Q: A random sample of 36 items gave a sample mean of 48 and a standard deviation of 12. Compute the…

A: Given that  n = 36 ,  x̄ = 48 ,  μ = 50 , s = 12

Q: Assume that the amounts of weight that male college students gain during their freshman year are…

A: Let X be a random variable from normal distribution with mean is 1.4 kg and standard deviations is…

Q: from the following table of yearly premiums for policies maturing at quinquenial ages, estimate the…

A: The yearly premiums for policies maturing at quinquennial ages.

Q: A synthetic fiber used in manufacturing carpet has a tensile strength that is normally distributed…

A: normal distributionμ=75.5σ=3.5n=6p(x¯>75.75) = ?

Q: The age distribution of students at a community college is given below: Age (years) Number of…

A: To find: The probability that the age of this student is between 21 and 25 or between 26 and 30 or…

Q: Time(min)      # of students  10-19                  8  20-29                 15  30-39…

A: class f x f*x cf 10-19 8 14.5 116 8 20-29 15 24.5 367.5 23 30-39 22 34.5 759 45 40-49 18…

Q: At a certain dealership, the probability that a customer purchases an SUV is 0.20.  The probability…

A: P(SUV)=0.20  P(Black)=0.15  P(Black SUV)=0.05

Q: Given the probability density function f(x) = over the interval [1, 6], find the expected value, the…

A: Given: The Probability density function: fx = 15  over the interval [1, 6] Formula Used: The…

Q: A researcher wishes to estimate the proportion of adults who have​ high-speed Internet access. What…

A: given data E = 0.0395% ci for pn = ?(a) use p^ = 0.54(b) no prior estimate.

Q: After identifying the 16 different possible samples and finding the mean of each​ sample, construct…

A: Given that  The population data are : 32 , 25 , 12 , 11 Samples of size n=2 are randomly selected…

Q: A hotel claims that 95% of its customers are very satisfied with its service. Complete parts a…

A: Solution-: Given: n=5, p=0.95 We want to find  (a) P(exactly 4 customers are very satisfied)=? (b)…

Q: Discuss the sampling method that you think was used for this research

A: Four types of sampling methods: Random  : samples choosen randomly, every member of population has…

Q: During the past six months, a purchasing agent placed the following three orders for coal: Tons of…

A: According to the given information in this question We need to find weighted mean

Q: EOPLING GAT MORE credit card purchases of 100 customers randomly chosen from a segment of a major…

A: The data shows the last month's credit card purchases of 100 customers.

Q: 14. A person selects a fork from a drawer in the kitchen, puts it back, and then selects another…

A: Q-14   select fork from a drawer in the kitchen, puts it back, and then selects another fork.   A :…

Q: Research was conducted on the amount of training for 5K race and the time a contestant took to run…

A: a) Assume that x defines amount of training for 5K race (independent variable) and y defines the…

Q: In 2022, a study at Get Well Pediatrics found that 20% of its patients were allergic to pet dander.…

A: Given that    Positive  Negative  Total Allergic to pet dander  16% = true Positive  4% = false…

Q: 15. A booth at the fair offers a game of chance where a person spins a wheel divided into four equal…

A: given datap(north)=p(east)=p(south)=p(west)=14=0.25west : win $ 20north : pay $ 8south : pay $ 5east…

Q: If a set of exam scores forms a symmetrical distribution, what can you conclude about the students’…

A: The set of exam scores forms a symmetrical distribution.

Q: d to each of the 12 patients resulted in the following increase of blood pressure: 5, 2, 8, -1, 3,…

A: Given: 5 2 8 -1 3 0 -2 1 5 0 4 6 Sample size (n) = 12 Assumed level of…

Q: Determine whether the results appear to have statistical significance, and also determine whether…

A: The following information has been provided: The sample size is n=870. The sample proportion is…

Q: Conduct the hypothesis test and provide the test statistic and the critical value, and state the…

A: For the given data Perform chi square goodness of fit

Q: 3. (5.7.12) On June 2, 2010 USA Today reported a story from Bloomberg News that said that the total…

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Q: assume that the daily retun on Apple stock is approximately normally distributed  with the mean…

A: From the provided information, Mean (µ) = 0.13% Standard deviation (σ) = 2.34% X~N (0.13, 2.34)

Q: The components of our multiple linear regression model are the following: Numerical outcome…

A: In the given situation, The numerical explanatory variable is budget. The categorical variable is…

Q: Complete parts (a) through (d) below. a. At the 0.05 level of significance, is there evidence that…

A: It is given that  Population proportion, π = 20.4% = 0.204 Sample size, n = 100 Favourable cases, X…

Q: By how many times does the sample size have to be increased to decrease the margin of error by a…

A: By how many times does the sample size have to be increased to decrease the margin of error by a…

Q: Suppose that scores on a particular test are normally distributed with a mean of 120 and a standard…

A: