(a) Below is the extract of the first few questions in the questionnaire. Define the type of variable (Numerical Discrete / Numerical Continuous / Categorical Nominal / Categorical Ordinal) for each of the variables: Q1: Your studying program Circle your answer: Business / Engineering / Arts / Science) QII: Traveling time from home to college on 20 February 2022 (in minutes): QIII: Total spending on meal (breakfast + lunch + dinner) on 20 February 2022 (Circle your answer: Below $40 / $40 - less than $80 / $80 - less than $120 / $120 or above) QIV: Number of T-shirts you've bought in January 2022:

Q: Calculate co-efficient of correlation from the following information by taking deviation from actual...

A: Correlation is the degree or extent of relationship between two variables. 

Q: A student's times per week utilization of computer lab are normally distributed, w/ a μ = 6.2 hrs an...

A:

Q: Newborn babies: A study conducted by the Center for Population Economics at the University of Chicag...

A: Given,sample size(n)=758mean(μ)=3154standard deviation(σ)=835

Q: 6. The three samples below have been obtained from normal populations with equal variances. Test the...

A:

Q: Total of the product of deviations of X and Y series = 3,044 Number of pairs of observations = 10 To...

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Q: Find the value of mean and mode from the data given below : Weight in Kg: No. of Students: 93-97 98-...

A: Given that  Class Frequency (f) Mid value (x) f⋅x 93-97 3 95 285 98-102 5 100 500 103-107 1...

Q: Table 1 Teachers (T) 15 Students (S) Men (M) Women (W) 40 25 20 9) Using Table 1, the probability th...

A:

Q: Base on the graph: Give findings. Make conclusions. Make inferences

A: Graphical representation is the visual representation of the numerical data. 

Q: Calculate inter-quartile range and its co-efficient from the Following data: Wages ( $ ) 15 25 35 45...

A: We know that  Interquartile range (IQR)= Q3 - Q1 And its coefficient  = ( Q3 - Q1)/(Q3 - Q1)

Q: Calculate the co-efficient of correlation and the lines of regression for the following data: 1 2 3 ...

A:

Q: The ages of Stephanie's five cousins are listed below. 5 11 10 18 16 1) Calculate the mean. 2) Fill ...

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Q: (b) An otherwise fair siy eided die has been tamnpered with in an attempt to cheat at a dice game, T...

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Q: 14. Garlic for Reducing Cholesterol In a test of the effectiveness of garlic for lowering cholestero...

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Q: The following summary table presents the results from an ANOVA comparing five treatment conditions w...

A: Given: n=5 Total sum of square=1500  MS between treatments =125  

Q: All I need from the following question is the following data: 1)EITHER state the critical values and...

A: Given that  Hypothesized Population Mean (\mu)(μ) = 0.30.3 Population Standard Deviation (\sigm...

Q: opulation parameters are always point estimators of sample statistics O True O False

A: Given that  Parameter based on population and statistics based on sample. 

Q: A frequency distribution gives the following results : () Coefficient of variation = 5 (ii) Standard...

A:

Q: From the constructed frequency distribution, find the mean, median, mode, variance and standard devi...

A: Given,  random samples of the thickness (in millimeters) of insulation in transformer windings. Wher...

Q: A study conducted by the Center for Population Economics at the University of Chicago studied the bi...

A:

Q: 4. A random sample of 15 students was selected from a population size of 100 (normal) in a certain d...

A: Gievn,sample size(n)=15sample mean(x¯)=400standard deviation(S)=17.50degrees of freedom(df)=n-1df=15...

Q: Assume that a sample is used to estimate a population proportion p. Find the 99.5% confidence interv...

A:

Q: Find the Geometric mean of : 2, 4, 6, 8, 12, 14, 16, and 18,.

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Q: How many triangles can you make using 6 non collinear points on a plane? A committee including 3 boy...

A: Number of possible arrangement of data set is studied using the permutation and combination. Permuta...

Q: 19. Mercury in Sushi An FDA guideline is that the mercury in fish should be below 1 part per million...

A: sample mean, xbar = 0.7186sample standard deviation, s = 0.3658sample size, n = 7degrees of freedom,...

Q: Identify the lower class limits, upper class limits, Blood Platelet Count of class width, class midp...

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Q: How many of the 3005 subjects used at least one prescription medication? Construct a 90% confidence ...

A: p=0.817 = probability of subject use at least one prescription  n = 3005 = number of adults involved...

Q: 4. A sociologist conducts an opinion survey in a major city. Part of the research plan calls for des...

A: In the specified problem, an appropriate sampling method to be adopted, that would represent the ind...

Q: 55. A concert producer has scheduled an outdoor concert for next Saturday. If it does not rain, the ...

A:

Q: A normal distribution has a mean of u = 87 with o = 6. If one score is randomly selected from this d...

A: Given:  Random variable x from normal distribution with mean mu=87 amd standard deviations=6  Then f...

Q: Q. 1. Calculate median from the following items : 5, 7,9, 11, 13, 15, 17, 19, 21

A: Given The data is as follows: 5,7,9,11,13,15,17,19,21

Q: If the power for a hypothesis test is calculated to be 0.90, then for the same test, the probability...

A: Given  Power=0.90

Q: How do you you decide whether your a test is one, two, left or right tailed?

A: Any assumption about the parameter or probability function is known as Hypothesis testing (HT). 

Q: 47. Suppose A and B are two events with P(A) = 0.36, P(B) = 0.48, and the P(A or B) = 0.60. (a) Find...

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Q: Question 2 The Medical Association of Trinidad and Tobago is interested in determining the impact of...

A: Given that  The Cholesterol level in mg/dL is given  We have to find the confidence interval for mea...

Q: Direction: For the following hypotheses name the IV and the DV. 1. Lack of sleep significantly affec...

A:  In a correlation analysis, correlation means the relation between two variables and these two varia...

Q: Two samples of 103 and 80 students are taken with a view to find out their average monthly expenditu...

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Q: Calculate co-efficient of correlation from the following information by taking deviation from actual...

A:

Q: Define Karl Pearson's coefficient of correlation and discuss the methods of studying it?

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Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class...

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Q: 2. Compute the confidence interval of population proportion. Among 1500 Filipino women included in a...

A: Given,n=1500x=765p^=xnp^=7651500=0.511-p^=1-0.51=0.49α=1-0.95=0.05α2=0.025Z0.025=1.96     (from Z-ta...

Q: Calculate mode from following data: 5-10 10-20 20-30 30-40 40-50 50-60 60-70 X: 0-5 128 150 520 464 ...

A: Data given  Class Frequency 0 - 5 128 5 - 10 150 10 - 15 520 15 - 20 464 20 - 25 398 ...

Q: The table below shows a distribution of bristle number ina Drosophila population. Calculate the mean...

A: Given: Briustle number, x No. of individual, f 1 1 2 4 3 7 4 31 5 56 6 17 7 4

Q: A coin is tossed six times. What is the probability of obtaining four or more heads ?

A:

Q: the probability distribution of the situation below: II. Construct drwn in succession without replac...

A: Given that, an urn contails 5 white and 6 black balls. Two balls are drawn  without replacement. Let...

Q: Hay Fever Relief Data: A research laboratory was developing a new compound for the relief of severe ...

A: GivenThe estimated treatment means plot as shown below With respect to the treatment means plot it i...

Q: When acted upon by the forces F and F2, the 40-kg slider block moves to the right with a speed of 1....

A: Solution:  

Q: Giving a test to a group of students, the grades and gender are summarized below A. Total Male 8. 13...

A:

Q: Say that we have two datapoints x and y. Both x and y are independently normally distributed with va...

A:

Q: You just completed participation activities utilizing shadow price and the 100% rule. Now think of a...

A: First, let's define what shadow price and 100% rules are.100%rules states that the tot changes in th...

Q: ARCH(1) model o? = w+ ae?_1. Define Y; = e? and u: = e? – o?. Show that Y, can be written as a speci...

A: Given information: The parameters of ARCH model are given.