A chi-square test is the appropriate analytic technique to use whenever the measurement scale for the data is   Question 14 options:   nominal   ordinal   interval   ratio

Q: Let X,X 1'2' ... ,X be a random sample from an n exponential distribution with density function Then…

A:

Q: The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of…

A: Given Mean=0.938 gram Standard deviations=0.328 gram

Q: A CEO wondered if her company received either more or less complaints from its workers on Monday…

A: Method: Using proportion Z test statistic

Q: b. Suppose that a sample of n = 400 students at the same university (instead of n = 100) determines…

A: It is given that  Population proportion, p = 20.4% = 0.204 Sample proportion, p^ = 25% = 0.25 Sample…

Q: You want to compare the tastiness and tanginess of limes grown with three amounts of a new…

A: Experiment is that whether tastiness and tanginess of limes grown differ with three amounts of…

Q: Find the line of best fit for the ordered pairs 11, 52 and13, 82. What is the correlation…

A: Given The ordered pairs are (11,52) and (13,82)

Q: According to the results of a survey, 36% of 155 people indicated that American football is their…

A: According to given question,  We have:-  Point Estimate of population proportion= 0.36Margin of…

Q: Calculate the Range of revenues for each of the 4 quarters, stating the formula you would use for…

A: The question is about measures Given :   To find : Range for each of 4 quarters

Q: Given P(A) = 0.7 and P(B) = 0.8. If P(A/B) = 0.3 find P(A and B).

A: Given that  P(A)=0.7 , P(B)=0.8 P(A/B)=0.3

Q: 4. Two independent random variables X₁ and X₂ are both uniformly y₁=X₁X2/(X₁+X2). Hint: distributed…

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Q: Meghan is a psychology major who is testing a maze for a group of mice to navigate. In order for it…

A: Given Information: The hypothesized value of population mean μ0=90 Sample size n=28 Population…

Q: Hypothesis: H0: Ud is greater than or equal to 0 Ha: Ud is less than 0 Decide if we reject H0 or…

A: From above output Lower 95% =-26.462  Upper 95% =-0.871

Q: Suppose that the TSH (Thyroid Stimulating Hormone) levels among healthy individuals are normally…

A: Given that: Population mean, μ=3.2 To find: Standard deviation of the distribution of healthy…

Q: Niue Vanilla has had two successive years in which the Vanilla bean harvest has stretched the firm’s…

A: Given that: The payoff table are as follows: Alternatives Next Year's Demand Low Medium High…

Q: An airliner carries 100 passengers and has doors with a height of 78 in. Heights of men are normally…

A: a. Suppose a random variable x defines the height of men.

Q: For the following sample data, find M: 8 , 2, 2, 5, 3.

A: We have given that  8, 2, 2, 5, 3

Q: Determine the point estimate of the population​ proportion, the margin of error for the following…

A: Given,Lower bound=0.189Upper bound=0.391n=1000

Q: IQ scores are known to be normally distributed with a mean of 100 and a standard deviation of 15.…

A: GivenMean(μ)=100standard deviation(σ)=15sample size(n)=100

Q: The time to complete an exam is approximately Normal with a mean of 43 minutes and a standard…

A: Given,mean(μ)=43standard deviation(σ)=5

Q: a) Let X₁, X2X₁ denote a random sample from N(0, 2) distribution with probability density function:…

A: X~N(0, standard deviations σ 2)

Q: ear Returns Returns   X Y 1 13 27 2 26 36 3 7 11 4 -5 -29 5 11 16       Using the returns shown…

A: The data shows the returns for five years.

Q: 11. If outside line accesses from within a local phone network form a Poisson process with rate 1/…

A:

Q: QUESTION 2 A random variable X has probability density function - Ox de _x>0 0, elsewhere f(x;0) = =…

A: Use the concept of type I and typeII error.

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: function f(x)=B³ Find the Maximum Likelihood Estimator of B. 00 elsewhere

A: Solution

Q: A score that is 2 points higher than the sample mean has a z-score of z = 0.5 and a score of X = 44…

A: Given,A score that is 2  points higher than the sample mean has a z-score of z = 0.5and a score of X…

Q: You may need to use the appropriate technology to answer this question. Suppose a certain state…

A: given that,if the null hypothesis is rejected, we can conclude that salaries for Finance majors are…

Q: Suppose that the scores of architects on a particular creativity test are normally distributed.…

A: g) It is needed to find the percentage of architects have Z scores above –0.90.

Q: A genetic experiment involving peas yielded one sample of offspring consisting of 442 green peas and…

A: It is given that a sample of offspring consisting of 442 green peas in which 142 are yellow peas.

Q: w shows the speed (in gigaflops using a test package) of several processors. It is intended to be…

A: The bar chart is one of the most basic chart styles and one of your best resources  for…

Q: We give p-values for four different tests: Test A: p-value = 0.23 Test B: p-value = 0.008 Test D:…

A:

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: Question 7 The following plots have been obtained for a time series. a) Suggest an appropriate ARIMA…

A: ARIMA stands for Auto Regressive moving  Notations: ARIMA  (p,d,q)           (P,D,Q)m              ⋮…

Q: Let XXX be a random sample from an exponential distribution with density function Then the random…

A: option  A is false

Q: Resveratrol, an ingredient in red wine and grapes, has been shown to promote weight loss in ani-…

A:

Q: 55 64.1 58.2 37.1 47 48.1 66.4 72.7 67.1 56.3 74.7 34 69.8 59.7 196.8 y 709.4 2101.8 -3898.7 556.1…

A: Formula for correlation coefficient :  r = n∑xy-∑x∑yn∑x2-∑x2n∑y2-∑y2

Q: Kelly’s batting average is .30 (they hit 3 out of every 10 pitches). Let’s assume there are 120…

A:

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

A:

Q: QUESTION 1 A random variable X has probability density function f(x;0) = - Ox де 0, elsewhere x>0 It…

A: Type I and II Error has utilized.

Q: If 26 different women are randomly​ selected, find the probability that their mean weight is…

A: It is given that the mean is 169 lb and  the standard deviation is 39 lb.

Q: (d) below 1.30, (e) above 1.90, (f) below 1.90,

A: standard normal distribution   Z~N(0,1)

Q: Assume Standard Normal Distribution. Find the z-value for the given corresponding area. a. Given P(z…

A: Solution: Let z be the standard normal variable with mean 0 and standard deviation 1.  Z~N(0,1)

Q: Suppose that X has a moment generating function given by mx(t)=1/(1-4t)², te(-0.5,0.5). Find Var(-X)

A: Differentiation of moment generating function with respect to t and put t = 0 , for finding first…

Q: In a recent court case it was found that during a period of 11 years 861 people were selected for…

A:

Q: The probability that an automobile needs an oil change is 43.77% and the probability that it needs a…

A: GivenP(automobile needs an oil change)=0.4377P(automobile needs a new oil filter)=0.4329

Q: a. Given the following Information obtained from three normally distributed populations, construct…

A: Given information: SSTR=173.9SSE=2616.8c=3n1=n2=n3=6p-value=0.617Level of significance (α)=0.10…

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: (a) Above 59 (b) Below 59 (c) Above 47

A: given data

Q: Average wages of some firms are given below represent this by simple bar diagram Firm: Average wage:…

A:

Q: Executives of a supermarket chain are interested in the amount of time that customers spend in the…

A: It is given that Margin of error E = 6 Level of confidence = 95% Population SD = 27