1. The frequency table tallies the number of students at each VALUE for Level. What do you notice about how R has organized the VALUES for this VARIABLE? What is the MODE of Level? What is the N (number of observations) for the MODE?

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A: Given data are 6  8   6   12   7   6   10   11   11    8   8    9     6   10   10   

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Q: The time college students spend on the Internet follows a Normal distribution. At Johnson University...

A: Given,mean(μ)=5standard deviation(σ)=1.2sample size(n)=100

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A: Given: Box-Plot

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A: As per Bartleby guidelines I can't answer more than three sub parts per post. Please post other ques...

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A: Solution is given:  

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A: Given data is  x 0 1 2 3 4 P(x) 0.02 0.18 0.30 0.40 0.10

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Q: what is the sample variance? give the correct answer. a. 72.10 b. 73.23 c. 74.45 d. 75.1...

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A: Given data, 39.7,48.2,34.4,37.3,31.1,51.7,34.6,40.4,38.7,28.1,48.1,45.7

Q: The z-scores are

A: Here use standard normal distribution table for z score 

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Q: In a certain school district, it was observed that 26% of the students in the element schools were c...

A: Given,n=407x=123α=0.01 Sample proportion(p^)=xnp^=123407=0.3022

Q: Еxample Calculate the Harmonic Mean of the following series: Values : 2 10 14 18 Frequency : 4 12 20...

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Q: A sample of 100 gives the mean weekly wage at $. 50 with a standard deviation of & 10 Another sample...

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A: Given Z=3.18

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Q: 14) Create a Histogram illustrating the information provided in the chart above. Label the vertical ...

A: For the given data Construct the histogram

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A:   For the shape of the distribution of the sample proportion to be approximately normal, it is requi...

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Q: Using p-value for X2, the coefficient of X2 is significantly different from 0. Use α = .05.  Yes  ...

A: Solution: Test for significance of β2 To test the hypothesis Ho:β2=0    VS    Ha:β2≠0

Q: iven the number of trials and the probability of success, find the mean, standard deviation, and the...

A: We know that  n= number of trials  p= success of probability  q=1 - p X~binomial ( n,p)  

Q: Use the standard normal table to find the z-score that corresponds to the given percentile. If the a...

A: Required probability is P(Z<z0)=0.48

Q: size n=329n=329 in which there are 108 successes. What is the test statistic for this sample? (Repo...

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Q: The random variable X has the probability distribution table shown below. -2 -1 1 2 P(X = x) a a 0.4...

A: We have given that the random variable X has the probability distribution table.

Q: X」メ-一Xn ~ECA) find pdf ** メ。 t.

A: The pdf of Xn is

Q: Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs 0. 1 3. Prob...

A: For the given data Find mean ,variance,s.d and interpret

Q: Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed wi...

A: Given: Mean, μ = 148 Standard deviation, σ = 12 Let X be the length of the pregnancies. X ~ N(148, 1...

Q: hi i need help to calculate this statistics on manual calculations. this is the 5 question, A study ...

A: hi i need help to calculate this statistics on manual calculations. this is the 5 question, A study ...

Q: A. Sketch the graph of each of the following and compute the percentage. 1. below z = -1.96 2. to th...

A:

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Q: 5) What is the expected or average cost of an attack, given strategies (q.}, {p.}?

A: Given that N  sites need protection(number them 1 to N). The choice of qi and pirepresents the attac...

Q: 20. A dietician prepares a diet specifying the amounts a patient should eat of the four basic food g...

A: "As the data values in part b are missing. We will solve part a and part c. To get the remaining par...

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Q: Please answer e-h

A: (a): in regression analysis we use t test for hypothesis testing so here the value of test statistic...

Q: Consider Ho:  μ1 = μ2 = μ3 = μ4  and the sample size are n1 = n2 = 5, n3 = 6, n4 = 8. a. Complete A...

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Q: - Determine the sample and

A: here use basic of population and sample   

Q: 12. What must be the value of the probability of each random variable? А. Р(X) 2 0 C. -1 < P(X)<1 D....

A: As per our guidelines we are supposed ro answer only one question per post so I am solving first que...

Q: Find the indicated z-score shown in the graph to the right. Area = 0.0436 2=? > The z-score is (Roun...

A: Given

Q: 10. Suppose a simple random sample of 50 business travelers is selected and each traveler is asked t...

A: Solution: n= 50 Sample size  ∑x= 396x= ∑xn=39650=7.92  Sample mean ∑(x-x)2=179.68s =∑(x-x)2n-1s =179...

Q: The following data relate to the marks of 10 students in the internal test and the university examin...

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