population of normal dog find the sample size necessary to estimate the mean IQ score of the statistics in such that it can be said was 99% confidence that the sample mean is it within three IQ points of that you mean assume that the standard deviation equals 12 and determine the required sample size using technology then determine if this is a reasonable sample size for a real world calculation

Q: The number of cavities in school-aged children and size of vocabulary are known to have a strong…

A:

Q: Salinity in Quebec river is a combination of tides and rain. Rain that diluted the salt occurs about…

A: Given information: PRainNo afternoon tide=0.10PRainAfternoon tide=0.15P(Afternoon tide)=0.50P(No…

Q: The following data are a result of an investigation as to the effect of reaction temperature x on…

A: Given data: Observation Temperature (x) Conversion (y) 1 200 43 2 250 78 3 200 69 4 250…

Q: 1.A company trying to decide which 3 colors to include in a promotional mini box of 3 crayons. They…

A: 1) Combination Rule: There are n different items and r number of selections, the selections are made…

Q: John and Jess play a game where they each roll a die, but John's die is six-sided and Jess's is…

A: It is given that there are totally forty-eight outcomes.

Q: and x be a normal random variable wit andard deviation o= 8. Find the following probabilities and…

A: Given that.   X~N( μ , ?)   μ=15     , ?=8   NOTE:- According to bartleby guidelines expert can…

Q: The probability mass function of a random variable X is given by 1 2 X f(x)=P(X=x) F(x)=P(X ≤ x) a)…

A: Farmula P(A|B)=P(A and B)/P(B)

Q: Using the Binomial distribution, If n=10 and p=0.4, find P(x=4)

A: Here, n is 10 , p = 0.4  By using binomial distribution.

Q: Calculate the probabilities of the following events: With a two dice roll, what is the probability…

A: It is given that the two dice rolled.      Note: According to Bartleby expert guidelines, we can…

Q: The random variable X represents the number of cars per household in a town of 1000 households. Find…

A: It is given that random variable X represents the number of cars per household in a town of 1000…

Q: A sample consisting of the values 20.87, 13.74, 5.24, 2.76, 4.73, 2.66 is known to come from a…

A:

Q: For persons infected with a certain form of malaria, the length of time spent in remission is…

A:

Q: Structures in a county need to be designed for earthquake loading. After a detailed seismic risk…

A:

Q: You plan to take a random sample from a population of 500 items and build a 95% confidence interval…

A: We have given that Standard deviation(σ) = 100Margin of error (E) = 5Significance level (α) = 1 -…

Q: et Y = 3X – 1, where X is a random variable that is distributed uniformly from 10 to 50. Answer the…

A: Given: Y=3X-1 X~U(10,50) a=10, b=50

Q: An automated egg carton loader has a 1% probability of cracking an egg (for each egg loaded).…

A: Given Information: An egg carton loader has a 1% probability of cracking an egg. You inspect cartons…

Q: Stacy is taking an English class and a history class. Consider the following events: E = {get an A…

A: According to the given information, we have Let E, H and B are events such that E = {get an A in…

Q: The return period of very severe sea storms resulting in structural failures in a ship is assumed to…

A: Obtain the probability that a ship will not be damaged in 20,000 hours.   The probability that a…

Q: The table shows the results of a study in which a Social Physique Anxiety (SPA) Self-Report Scale…

A:

Q: A frequency distribution is shown below. Complete parts (a) through (d). The number of televisions…

A:

Q: In a certain congressional district, it is known that 60% of the registered voters classify…

A:

Q: The number of tourists arriving in a certain tourist destination is assumed to follow a Poisson…

A: Givendaily mean rate of 500 λ=500x~Poisson(λ=500)P(X=x)=e-λ×λxx!   ; x≥0

Q: If you have ever read the children's book Dragones y Tacos, you may know that some dragons breathe…

A: From the given information, Some dragons fire if they eat tacos with salsa picante. Oris and Rafa…

Q: Now let's look at the theoretical distribution: X f= σ= Q1 = U(0, 1)

A: Given X~U(0,1) Note: According to Bartleby guidelines expert solve only one question and maximum 3…

Q: Life Insurance A 36-year-old woman purchases a $100,000 term life insurance policy for an annual…

A: From the provided information, The probability that the woman survives = 0.999057 If woman survives…

Q: if the odds of winning on a scratch off lottery ticket are 11:696 what is the probability of…

A: We have given the odds of winning on a scratch  of lottery  ticket are 11: 696 we have to find out…

Q: , during the hours of heavy traffic on a bridge, the traffic is considered random with a volume of…

A:

Q: If one card is drawn from a deck, find the probability of getting these results. Enter your answers…

A: It is given that one card is drawn from a deck.

Q: Let X be a random variable that is approximately normal. A random sample of size n = 16 is taken.…

A: Answer: - Given, sample size n = 16.                 The sample mean is x = 71 and the sample…

Q: A set of final examination grades in an introductory statistics course is normally distributed, with…

A:

Q: The joint probability density function of two random variables X and Y is f(x, y)= 4xye^-(x^2+y^2).…

A: Method: Probability of a given joint probability distribution function

Q: a. If the Asian project is not successful, what is the probability that the European project is also…

A: It is given that  P(A) = 0.40,     P(A’) = 1 - P(A) = 0.60 P(B) = 0.70,     P(B’) = 1 - 0.70 = 0.30

Q: The magnitude of the union of three sets is computed by the following formula. |AUBUC| =…

A:

Q: Survey on Answering Machine Ownership In a survey, 63% of Americans said they own an answering…

A: Suppose a random variable X, defines that the number of Americans own an answering machine.

Q: If A and B are mutually exclusive, then P(AI AUB)= P(A) P(A) + P(B)

A: Solution-; If A and B are mutually exclusive, then prove that  P(A|A∪B)=P(A)P(A)+P(B)

Q: 3. Consider a criminal court murder case. The possible evidence for or against an accused suspect…

A: Given, the possible evidence for or against an accused suspect is E1=accused had a quarrel with the…

Q: A jar containing 2 balled colored green and purple. An experiment consists of repeatedly drawing one…

A: Given that A jar contains two balls colored green and purple. Balls are selected with replacement…

Q: Can part B be answered as well please?

A: b) The probability that the resistors are within the allowable tolerance value is 0.90.

Q: A restaurant is planning to open in town. They estimate that there is a 50% probability that is will…

A: It is given that there is a 50% probability that is will make $50,000, a 15% probability that it…

Q: What is the probability that rolling a regular six-sided die two times has at least one occurrence…

A: given data  roll a six sided die two times. find P(atleast one 5) = ?

Q: From a standard​ 52-card deck, how many 2​-card hands consist entirely of red ​cards?

A: Given that  Total cards = 52 Red cards = 26 Black cards = 26

Q: Assume that people have the same probability of being born in any given month. Under this…

A:

Q: 5. The Toronto Blue Jays are going to the playoffs! Let's consider a best of three playoff series.…

A: 5)  Given : Let W represent that jace will win L represents that jace will loose Therefore, p(W)…

Q: Suppose that on an average two tornadoes occur in 10 years in a county in Oklahoma. Further assume…

A:

Q: Suppose a random variable has a continuous uniform distribution between 0 and 10, such that its…

A: a) Suppose a random variable X follows the continuous uniform distribution between 0 and 10.

Q: Salinity in Quebec river is a combination of tides and rain. Rain that diluted the salt occurs about…

A: From the given information, Salinity in Quebec river is a combination of tides and rain. Rain that…

Q: Suppose that a password is exactly six characters and each character is 1 of the 26 lowercase…

A: The number of lowercase letters is 26 and the number of integers is 10.

Q: Use SAS output for a random sample of size 20 to answer the following questions. Regression of yon X…

A: We have to find the value of Y^¯, i.e., mean of estimated Y. We know that for a linear regression…

Q: (a) Find the probabilities of the events below. Write each answer as a single fraction. P(A) = P (B)…

A: From the given Venn diagram Total students = 8

Q: A bank determines that 10% of all borrowers default loans. Answer the following questions, when, in…

A: Givenp=0.10sample size(n)=15Let "x" be the no.of loans are…