5. A Poisson distribution has a of 16. The mean, variance and standard deviation are: A) 16, 8, 4 B) 16, 4, 2 C) 16, 16, 4 D) cannot be calculated

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A: Given information, Sample size of fall semester students is 38. Sample size of spring semester…

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A: Note: “Since you have posted multiple questions, we will provide the solution only to the specified…

Q: -. Find the z value that corresponds to the given area. O Z A) -1.46 B) 1.23 C) 1.46 0.0721 D) 0.07

A:

Q: 13 Use the following regression equation to predict the height of an 8-year-old American girl. Round…

A: Given The regression equation is as follows: y=2.59x+29.31

Q: he Princeton Review, a company that tracks information about various colleges, reports that 30% of…

A: As we know that sample proportion is unbiased estimator of population proportion. That is E ( p hat)…

Q: 11 members of the swim team completed the 78, 80, 81, 81, 83, 84, 86, 87, 89, 90, 91 mplete the…

A: Solution: The observations in increasing order is  78,80,81,81, 83,84,86, 87,89,90,91 n= 11…

Q: se ”margin.table” to get the Titanic marginal table for factors 1 (class of accomodations) and 4…

A: Given, Observed  frequency O  Table : By applying the chi-square of independence,

Q: If the population consists of number 1, 2, 3, 4, 5, and 6. A sample of size of 3 is to be taken from…

A: Population consist:1,2,3,4,5,6 N=6   population size Sample size n= 3 taken Then number of possible…

Q: (b) Compute the value of the correlation coefficient. Round your answer to at least three decimal…

A: From given data we have : X Y 84 51 62 15 57 30 45 15 72 62 69 42 58 19

Q: Let X and Y equal the yield strength (in MPa) of two different steels. The following data were…

A: From the given data set we have the sample means, x¯=136.6083,  and y¯=134.87 and the sample sizes…

Q: QUESTION 13 You hypothesize that people who play brain teasers are smarter than people who do…

A: Given N = total number of observations = (3*10) = 30 k = number of groups = 3

Q: 3. Fit a plane to the data given in the table below. Compute the correlation coefficient. Predict…

A: Given: We have the following data on variables- x1 x2 y 0 3 5 2 4 6 5 6 7 6 10 6 9 8 9…

Q: «- * (-) < x < + (x) g=_ - Find the margin of error

A: It is given that  Standard deviation, σ = 4.1 Sample size, n = 225

Q: Which of the following analysis is the most appropriate for the data shown below? 1.00- Extinction…

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Q: million eligible voters. A simple random sample of size 10,000 was chosen to study the relationship…

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Q: a. Calculate the test statistic. t= 8 Round to three decimal places if necessary

A: a) Test statistic: t=rn-21-r2=0.176216-21-0.1762=2.616

Q: ▾ Part 1 of A study is done to determine which of two soft drinks has more sugar. There are 21 cans…

A: From given data we have  n1=21  s1=0.6  n2=20  s2=0.3

Q: Consider the following hypothesis test. Ho: #270 H₂: # < 70 A sample of 100 is used and the…

A: Followings are the Explanation of the question a) Use the One sample Z test for the given problem…

Q: True or False. a.) A measure that is computed to describe a characteristic of an entire population…

A: A) True  A measure that is computes to describe a characteristic of an entire population is called a…

Q: An oil company is interested in estimating the true proportion of female truck drivers based in five…

A: From the provided information, Confidence level = 98% Margin of error = 0.03

Q: Question 6: A trucking company considered a multiple regression model for relating the dependent…

A: Given that: The multiple regression equation: Y=-0.950+0.055x1+0.901x2

Q: Identify the test statistic. x² = 116.97 (Round to two decimal places as needed.)

A: Provide data,   25-34 35-44 45-54 55-64 Not HS grand 28 46 49 70 HS 85 18 88 83 1-3 years…

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A: Given information- Population mean, µ = 22 Population standard deviation, σ = 15 Sample size, n =…

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A: we use excel to find graph

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Q: Your friend has two jobs. She works a different number of hours each week, so her paycheck for each…

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Q: The best point estimator of the population mean is the sample mode. Answer Choose a match False True

A: The best point estimator of the population mean is "sample mean".

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A: Given that  The average of job one is 110 and job two is 75

Q: Most pregnancies are full term, but some are preterm (less than 37 weeks). Of those that are…

A: From given data we have : Observed Frequencies   under 20 B1 20 to 29 B2 30 to 39 B3 40 or Over…

Q: Given, X=119,85,97,95,120,92,105,110, 98,98            Y=154,123,125,130,151,131,141,141,130,134…

A: We have given that,  The data set are :- X=119,85,97,95,120,92,105,110, 98,98…

Q: iving the number of tails minus the number of heads in to occur, find the probability distribution…

A: From given data we have : P(T)=56 and P(H)=16

Q: Complete a test of the null hypothesis Ho: μ1= μ2, where μ₁ is the mean of your population and µ₂ is…

A: Given information, sample size is 30. Sample mean for sample 1 is 23.2. Sample standard deviation…

Q: A number generator outputs the sequence of digits shown below, where O represents an odd digit and E…

A: Null hypothesis is the hypothesis of no difference. Alternative hypothesis is the claim being made…

Q: Suppose that we identify 155 women 50 to 54 years of age who have both a mother and a sister with a…

A: The hypotheses for the test are given below. Null hypothesis: H0: p = 0.08 Alternative hypothesis:…

Q: a certain barangay. LGU distributes "ayuda" benefits to each family with a mean of 3,200 pesos per…

A: Given that.   X~N( μ , ?)   μ=3200    , ?=850  , n=32   Z-score =( x - μ )/?

Q: Which of the following is exclusively required if a researcher wants to make a causal claim? a.…

A: Given: We need to determine what is exclusively required if a researcher wants to make a causal…

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Q: The magazine Tech Worx reported that 87% of software engineers rate the company they work for as "a…

A: From the provided information, Sample size (n) = 210 From which 176 rated the company they work for…

Q: Preliminary data analysis indicate that it is reasonable to use a  t -test to carry out the…

A: Consider that μ is the population mean.

Q: survey working 13.1 million visitors for a specific month with the standard deviation was 4.1…

A: We have given that,  Sample mean (x̄) = 13.1, standard deviation (s) = 4.1 and sample size (n) = 8

Q: 4. Let's say that for one of the two questions you can narrow the answer choices down to three. Now…

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Q: When finding the area of a z score how do you know when to add or subtract the .5 or 1. I am very…

A: Continuity correction factor: A continuity correction factor is applied whenever a continuous…

Q: Conduct a test at the x = 0.10 level of significance by determining (a) the null and alternative…

A: Given X1=127 X2=133 n1=257 n2=313

Q: An exercise scientist wants to know if there is a relationship between explosive leg power and…

A: There are three values in the given APA report. 0.98, 30, and 0.001. It is given that sample size is…

Q: A psychologist obtains a random sample of 25 mothers in the first trimester of their pregnancy. The…

A: The value of µ is 100.

Q: When building the complete 2nd order model, you need to create interactions between all of the…

A: Correct Answer is OPTION B

Q: Define Ratio Scale and give examples

A: Here we have to define Ratio Scale with example

Q: The population in this project has a standard deviation that is unknown to us in principle, so the…

A: