The time needed by a student to finish a quiz in a subject is ___ variable? A. Discrete B. Continuous C. Ordinal D. Nominal

Q: A new drug that has been on the market for only a few months is now being recalled because certain…

A: Given that A new drug that has been on the market for only a few months is now being recalled…

Q: distribution of means would be more likely to have ___________ compared to a distribution of raw…

A: Given that  A distribution of means would be more likely to have (   ) compared to a distribution of…

Q: Need help finding the unit of analysis for e. This is who/what is being studied. Individuals,…

A: Unit of analysis explain the things are used for the study measurements. There are four types of…

Q: The diameter of a particle of contamination (in micrometers) is modeled with the probability density…

A: Ans#  The probability density function is            f(x)  = 2x3 ,      for x > 1 Find  (d) P(X…

Q: Suppose that f(x)=e* for x > 0. Determine the following probabilities: Round your answers to 4…

A: The question is about continuous probability distribution Given : f ( x ) = e-x     for x > 0…

Q: Suppose the probability density function of the length of computer cables is f(x) = 0.1 from 1200 to…

A: Given: f(x) = 0.1 a = 1200 b = 1210 Formula Used: Mean μ = a+b2 Standard deviation σ = (b-a)212

Q: Three statistically independent random variables X₁, X₂ and X₂ have mean values X₁ =3, X₂ = 6 and X₂…

A: Given X1, X2, X3 are independent and E(X1)= x̄1=3, E(X2)=x̄2=6, E(X3)=x̄3=-2  Result: Since X and Y…

Q: In each of these hypothetical research questions, identify the independent and dependent variables.…

A: In statistical analysis , we use two types of variables one is independent variable and the other is…

Q: Listed below are pulse rates​ (beats per​ minute) from samples of adult males and females. Find the…

A: Given : Pulses rates of males and females are : Male: 58 86 52 57 98 65 62 72…

Q: (A) Null hypotheses cannot be made with non-normal data. (B) Alternative hypotheses cannot be made…

A: The objective is to identify if the hypotheses (i.e., the null and alternate hypotheses) essentially…

Q: Question: Suppose that I want to construct a 95% confidence terval for a mean when o is known. What…

A:

Q: A = 1 ⠀ ⠀ ⠀ ⠀ I ¹8281 8464 S S S 81 ⠀ ⠀ ⠀ ⠀ ⠀ 9801 10000¹ 100 ⠀ which are the squares of the first…

A: Hint:  A number is divisible by 3 if its sum of digits is divisible by 3.

Q: 1) If you select a card at random from a standard pack of 52 playing cards (ace is counted as 1),…

A:

Q: Let x be B(13,0.3).  (a)Use the Binomial Probabilities table to find the probability that x is at…

A: Given thatp = 0.3n = 13X ~Binomial(n, p) X ~ Binomial (13, 0.3)

Q: A distance AB is observed repeatedly using the same equipment and procedures, and the results, in…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A scientist sampled 200 kids and recorded their weights. The appropriate visual plot should be: a.…

A: Given: A scientist sampled 200 kids and recorded their weights.

Q: can you explain the notation please break it down each part of it, please teach

A: Here we see that μ can be obtained as the solution to the optimization problem…

Q: 44 is the median of the following data set, what is the value of the missing piece of data? 35 37…

A: Given that  Median = 44  The data set are 35 , 37 , 40 , ? , 50 , 51

Q: A standard deck of cards contains 52 cards. One card is selected from the deck. (a) Compute the…

A: standard deck of 52 cards  select one card at random  there are 4 suits of card and 13 rank of each…

Q: Not long after being put into service, some electric scooters manufactured with a certain brand have…

A:

Q: 6.82 If Y is a continuous random variable and m is the median of the distribution, then m is such…

A: Given that

Q: 6. A 90% confidence interval for p is given as (0.35,0.65). How large was the sample used to…

A:

Q: Here are the hottest recorded temperatures (in °F) for seven cities throughout North America.…

A: From given data we have : 117,104,104,118,114,112,107

Q: A coach asked her athletes if they enjoy running. Fifty-five percent of the team do not like to run.…

A: Given: Athletes do not like to run = 55% Of those, Enjoy cycling = 60% Enjoy both running and…

Q: d. RSD e. Absolute Error f. % Relative Error 2. Group 1 of QC lab has performed the analysis of…

A:

Q: Carol Lee's Donuts on North Main Street makes 23 kinds of donuts every morning. Your dad gives you…

A: Given that Carol Lee's Donuts on North Main Street makes 23 kinds of donuts every morning.

Q: Do the Math 10-2 Sufficient Dwelling Coverage? Colton Gentry of Lancaster, California, has owned his…

A: * SOLUTION :-    Given that     The ammount of insurence carried (I)= $160000 The replacement value…

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A: Given The data is as follows:   Prosperity Recession A 5 -6 B 2 -2 C -3 1

Q: A sample of 20 items provides a sample standard deviation of 9.5. Test the following hypotheses…

A: From the provided information, Sample size (n) = 20 Sample standard deviation (s) = 9.5 Level of…

Q: Check out the following table summarizing visits to the emergency room at four hospitals in the…

A:

Q: Scores on an entrance examination to a particular university have a mean of 105 and standard…

A: given data μ=105σ=10x=113z score=?

Q: Using the same probability as described in Question 5, and assuming that moves in the market are…

A:

Q: 6.46 Suppose that Y has a gamma distribution with a = n/2 for some positive integer n and B equal to…

A: Given Y~Gamma(ɑ=n/2,β)

Q: In tossing two coins at a time, what is the probability of having 2 heads in a single throw?

A: When we toss two coins at a time then possible outcomes are {HH,TT,HT,TH} Number of possible…

Q: (i) If X is a Poisson variable such that P(X=2) = 9P(X=6). Find the mean variance of X (ii) A…

A:

Q: The carbohydrate content (in grams) for serving sizes of select dairy (D), fruit (F), vegetable (V),…

A: From the above boxplots, we can see that the median value of carbohydrate in fruit is the largest…

Q: Question 1 X is a discrete random variable over x E {1,2,3) with probability mass function P(X= 1) =…

A: Answer..

Q: (d) p(CM)= (e) p(C)= (1) p(C')=

A:

Q: The scores below are the number of caffeinated beverages (coffee, tea, most carbonated soft drinks)…

A: Hint:  The formula for calculating population variance is; σ2=1n∑ixi-μ2= 1n∑xi2-μ2 Where μ is the…

Q: What is the 68-95-99.7 Rule and WHEN does it apply?

A: Answer:- What is the 68-95-99.7 rule and when does it apply?

Q: (A) Some form of evidence for normality should be provided before doing statistical analyses. (B)…

A: Normality: In order to establish if a data collection is adequately described by a normal…

Q: Based on this sample, construct a 90% confidence interval estimate for the actual mean. What is the…

A:

Q: The probability distribution of a discrete random variable X is given in Table Q3. Table Q3 1 x 2…

A:

Q: Dersity 15- 05 bibigand 20 days absent 30 40 00 An education specialist with background in…

A: Consider X to denote the number of absences, which is assumed to be a Poisson distribution. The…

Q: PRE Y = x +BX+E SRF 4 = 4= a +bx+e a = 4-6x bx b= Ixy Prove that E (a) = d a is or GOLS a also un…

A: The regression model is provided as Y=α+βX+ε. While the estimated regression model is provided as…

Q: large metropolitan area, the past records revealed that 30% of all high school graduates go to…

A: Given that  n = 10 , p = 30% = 0.30 , q = 1 - p = 1 - 0.30 = 0.70 X ~ Binomial ( n = 10 , p = 0.30)…

Q: is this a 2x2, 2x3, 2x4, or 3x4 design

A: Concept:In an experimental design,we define dimension based on number of treatment ND number of…

Q: The thickness of photoresist applied to wafers in semiconductor manufacturing at a particular…

A: Let X: the thickness of photoresist applied to wafers in semiconductor manufacturing at a particular…

Q: The lifetime X (in hundreds of hours) of a certain type of vacuum tube has a Weibull distribution…

A:

Q: Show that: E [εε'] = 62IN

A: Let X be a n×k matrix of observations of full rank on an independent variable (no perfect…