n the Heartatk data, what type of data is the variable Age?   A. Qualitative B. Continuous  C. Discrete D. Binary

Q: Suppose a dishwasher has a mean life of 12 years with an estimated standard deviation of 1.11 years.…

A: given data normal distributionμ = 12σ = 1.11n= 10

Q: A delivery company divides their packages into weight classes. Suppose packages in the…

A:

Q: Suppose an internet marketing company wants to determine the current percentage of customers who…

A: Given that  Margin of error =E =2%=0.02 90% confidence level.

Q: In general, after a group makes a reservation at a restaurant, they do not show up 20% of the time.…

A: We have given that p = 20% = 0.20n = 8  Here we will use binomial distribution because probability…

Q: A certain typing agency employs two typists. The average number of errors per article is 3.1 when…

A: Let A be the event that the article is typed by the first typist, B be the event that it is typed by…

Q: John has 3 kinds of fruits to be compared and he made subjective judgment on which fruit he likes…

A:

Q: 2. The following density function describes the random variable X. 1 2x+1-20 if 0 _=1 < x < 0+₁ 2 2…

A:

Q: The mean height of Americans in 1776 was 67 inches with a standard deviation of 3 inches.  George…

A: Given,mean(μ)=67 inchesStandard deviation(σ)=3 inches   Empirical rules:1) P(μ-σ&lt;X&lt;μ+σ)=68%2)…

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

A: The confidence levels and sample sizes are given.

Q: Suppose your manager indicates that for a normally distributed data set you are analyzing, your…

A: Answer  Given data is, your company wants data points between z=−0.9 and z=0.9 standard deviations…

Q: Given the normal distribution represented by X ~ N(81.8, 3.4). Find the 70th percentile to the…

A: Ans#- Given the normal distribution represented by X ~ N(81.8, 3.4).           Find the 70th…

Q: ou observe squirrels in the park and notices that some are black and some are gray. For the next…

A: GIVEN DATA, . Suppose X is a binomial random variable with n = 5 and p = .50q=1-0.50=0.50x= no. of…

Q: Read all three questions and please give a thorough easy-to-understand explanation. 1. Petra is…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: Amanda ages a busine sellin people in the business district of her city. She provides incentives for…

A: Analysis of Variance is used to test the equality of more than two means.

Q: A researcher wants to test the claim of an online article that 78% of Americans eat healthy each…

A:

Q: Let X be a joint Gaussian random vector X X 2 with mean and covariance tiven by: E[X] = [8] Ex = [1…

A: Let X be a joint Gaussian random vector, X=X1X2 The mean vector, EX=00 The covariance matrix,…

Q: In a survey from a certain year, the range of annual salaries reported was from $73,187 to $336,550.…

A: Given:  The data of CEO salaries of the two populated states California and Texas is provided below:…

Q: What is the probability that a buyer paid less than $685? What is the probability that a buyer…

A: Given: Mean μ=1000 Standard deviation σ=105

Q: You may need to use the appropriate appendix table or technology to answer this question. A national…

A: Given information: The data for test scores of 15 students are given with the population median…

Q: d) Conduct a test of the population slope to determine at the 5% significance level whether a linear…

A: Here dependent variable = Sales Independent variable = Years of experience Sample size (n) = 10…

Q: The mean number of accidents a week at a company is 6.4 with a standard deviation of 1.5. What…

A: Let , X→N(μ=6.4 , σ=1.5) Here , we want to find the P(X&lt;7)

Q: Determine the critical value for a left tailed test of a population mean at the a= 0.01 level of…

A: The population mean is μ and the test is left tailed.

Q: Suppose the mean starting salary for nurses is $68,722 nationally. The standard deviation is…

A:

Q: Question The Central Bank in a certain country is responsible for regulating life insurance…

A: I'm assuming that the data has been stored in "DataSet.xlsx" with column names 'age' and 'counts',…

Q: What is the chi-squared test statistic for this data set?What is the appropriate degrees of freedom…

A: The data is given on the number of customers during each day. Number of customers (n) = 115 No. of…

Q: A random variable is not normally distributed, but it is mound shaped. It has a mean of 18 and a…

A: GivenMean(μ)=18standard deviation(σ)=2sample size(n)=40

Q: According to the frequency table below, how many scored greater than 6 but less than 9?

A: score  frequency 6 2 7 3 8 7 9 7 10 1

Q: ou want to obtain a sample to estimate the proportion of a population that possess a particular…

A: given data, p=0.15E=3%=0.03CI=0.98α=1-0.98=0.02n=?

Q: 8. You were running a simple regression of birth weight as the dependent variable on mother's…

A: Given: A simple linear regression is conducted for the dependent variable, birth weight, and the…

Q: Suppose you roll a pair of six-sided dice. (a) What is the probability that the sum of the numbers…

A: Given: A pair of six-sided dice

Q: 7. The lifetimes of light bulbs of a particular type are normally distributed with a mean of 250…

A: Here the given information is The lifetimes of light bulbs of a particular type are normally…

Q: SAT scores in one state is normally distributed with a mean of 1532 and a standard deviation of 200…

A: given data, normal distributionμ=1532σ=200n=50we have to find out the given probabilties.

Q: Let X~ Uniform(0, 1) and pe (0, 1) be a positive number. Derive the cumulative distribution function…

A: a) To find the cumulative distribution function (CDF) of Y=-1λlog(X), we need to calculate P(Y≤y)…

Q: 7.7.3 Let X₁, Xn be a set of independent random variables with a U(0, 8) distribution, and let T=…

A: Hi! Thank you for the question. As per the honor code, we are allowed to answer three sub-parts at a…

Q: Approximately 10% of all people are left-handed. Consider 12 randomly selected people. Find the…

A: Given that  Number of trials n=12 Success of probability p=0.10 X~binomial (n,p) nCx=n!/x!(n-x)!

Q: A random sample of 500 ZU students are surveyed to determine if they own a tablet. It was found that…

A: Suppose p is the true population proportion of the ZU students who own tablets.

Q: Suppose the assembly time for a high tech computer chip X is uniformly distributed between 25 and…

A: Suppose the random variable X defines the assembly time for a high tech computer chip.

Q: 9. A company that manufactures large LCD screens knows that not all pixels on their screen light,…

A: Here the given information is 9. A company that manufactures large LCD screens knows that not all…

Q: A population of values has a normal distribution with μ = 106.4 and σ : 25.5. You intend to draw a…

A: given data, normal distributionμ=106.4σ=25.5n=85we have to find out the given probabilties.

Q: A random variable is not normally distributed, but it is mound shaped. It has a mean of 18 and a…

A: given data population mean ( μ ) = 18population sd ( σ ) = 2sample size (n) = 13find mean of the…

Q: Using a sample of 1801 black individuals, the following earnings equation has been estimated: 7.059…

A: Given: Regression equation based on 1801 individuals is as follows:   In(earning^) = 7.059 +…

Q: Heights of women are normally distributed with a mean of 63.2 in. and a standard deviation of 1.9…

A: We have given information, Let X denote the heights of women are normally distributed. With the…

Q: Refer back to the pizza-delivery Try It exercise. The mean delivery time is 36 minutes and the…

A: Here the given information is  The mean delivery time is 36 minutes and the population standard…

Q: QUESTION 16 In which of the following situations we can not construct a confidence interval for the…

A: 16) Answer:- If sample proportion is p̂. Then we construct a confidence interval for the population…

Q: In a study of speed dating, male subjects were asked to rate the attractiveness of their female…

A: Given The data is as follows: 5, 7, 2, 8, 5, 5, 6, 9, 7, 9, 4, 9 CL=0.99

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: based on the z scores would a 25 to 34 household or a 45 to 54 household be more likely to spend…

A: From the obtained results, the z-score for 25 to 34 households is 1.90 and the z-score for 45 to 54…

Q: A manufacturing company regularly conducts quality control checks at specified periods on the…

A: The question is about binomial distribution Given : Failure rate for LED light bulbs ( p ) = 0.04…

Q: how could i also find this out on a TI-84 calculator

A: 1) The sample size n is 8.

Q: t has been suggested that gossiping about others may affect how likeable you are. Two groups of…

A: This study aims to examine the hypothesis that gossiping about others affects how likeable a person…