The probability that a student chosen at random from your class is a French major is 0.05. probability that a student chosen at random from your class is not a French major?

Q: Determine the margin of error for the confidence interval for the proportion: 0.569<p<0.729

A: Given that  Confidence interval.  0.569&lt;p&lt;0.729

Q: 8.43 Let Y₁, Y2,..., Y₁ denote a random sample of size n from a population with a uniform distri-…

A: Given Y~U(0,θ)

Q: In the following probability distribution, the random variable x represents the number of activities…

A: c) The random variable x defines the number of activities a parent involved in.

Q: About 10% of the population has a particular genetic mutation. 400 people are randomly selected.…

A: Suppose a random variable X, defines that the number of people with a particular genetic mutation.

Q: A random variable X has probability density function be .X>0 0. elsewhere It is desired to test the…

A:

Q: The sample space listing the eight simple events that are possible when a couple has three children…

A: Sample space: All possible outcomes.

Q: significance. if the sample proportion is 0.45 and the sample size is 49; which one of the following…

A:

Q: the comic book store owner is curious in how well radio and newspaper advertisements work. A sample…

A: Given Information: Consider the given data: Comic book Sales Radio Ads Newspaper Ads 1 0 40 0…

Q: P₁ = 0.49 P₂ = 0.33 (a) What is the point estimate of the difference between the two population…

A: Given that  n1 = 400 , n2 = 300

Q: Which of the following are statistics? X 0²/n OS

A: we have to find which are statistic. as we know statistics represents sample parameters represents…

Q: b) Suppose that Y₁, Y₂...., Y₁0 is a random sample from a bernoulli (P) distribution. It is desired…

A: Given information: H0:P=0.5H1:P=0.1Y1, Y2, ...., Y10 ~BernoulliPH0 is rejected when ∑i=110Yi≤1 Here,…

Q: Let XX X...X be a random sample from an ,X n exponential distribution with density function B. Then…

A: Pivotal quantity is the quantity which one is independent of parameter.

Q: Section 5: 8 Marks Questions 15 to 17 refer to the following problem setting: A law enforcement…

A: Solution-: Here, we use proportion test (Z-test) Given: n=66, P0=0.88, p^=0.80 We want to  Q.15…

Q: Suppose that a new treatment is successful in curing a common ailment 73% of the time. If the…

A: Given that  n = 100 , p = 73% = 0.73 , q = 1 - p = 1 - 0.73 = 0.27

Q: product testing organization uses a survey of readers to obtain customer satisfaction ratings for…

A: Given that  Sample size n1=280 , n2=300 Sample means x1=83 , x2=82

Q: (d) below 18, and (e) below 4?

A: given datanormal distributionμ=17σ=5

Q: What is the probability of drawing a black card or an Ace from a standard deck of cards?

A: We know that There are 52 cards in the deck divided into two colour i.e red(26) and black (26).…

Q: complete the table below class frequency xi xifi fx xi-x (xi-x)2 fi(xi-x)2 500-750 15…

A: class frequency xi xifi xi-x (xi-x)2 fi(xi-x)2 500-750 15 625 9375 -765.833 586500.1839…

Q: b) Suppose that Y₁, Y₂... Y₁0 is a random sample from a bernoulli (P) distribution. It is desired…

A: Given that  H0 : p = 0.5 , H1 : p = 0.1

Q: Suppose that the TSH (Thyroid Stimulating Hormone) levels among healthy individuals are normally…

A: Given that: Population mean, μ=3.2 To find: Standard deviation of the distribution of healthy…

Q: 18.20. Suppose that 100 billion equity asset are the subject of portfolio insurance schemes. Assume…

A: The provided information is as follows: S0=100T=1r=0.06σ=0.25q=0.03 It is considered that the…

Q: Given P(A) = 0.7 and P(B) = 0.8. If P(A/B) = 0.3 find P(A and B).

A: Given that  P(A)=0.7 , P(B)=0.8 P(A/B)=0.3

Q: Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and…

A: Hint: The formula for z-score is, Z=X-μσ~N0,1

Q: Suppose Z follows the standard normal distribution. Use the calculator provided, or this table, to…

A: Given that Z has standard normal distribution  P(Z&gt;c)=0.1357

Q: The age distribution of students at a community college is given below: Age (years) Number of…

A: To find: The probability that the age of this student is between 21 and 25 or between 26 and 30 or…

Q: QUESTION 1 In the hypotheses Hл=0.40, Hл>0.40, at 5 % level of testing significance. if the sample…

A: The following information has been provided: H0:π=0.40H1:π&gt;0.40 The sample size is n=49. The…

Q: w shows the speed (in gigaflops using a test package) of several processors. It is intended to be…

A: The bar chart is one of the most basic chart styles and one of your best resources  for…

Q: The average percent of correct responses on the midterm last semester was 78% with a standard…

A:

Q: You may need to use the appropriate technology to answer this question. Suppose a certain state…

A: given that,if the null hypothesis is rejected, we can conclude that salaries for Finance majors are…

Q: Random sampling from four normally distributed populations produced the following data: (You may…

A: Given data: A B C D -7 -8 -8 -9 -13 -9 -11 -16 -16 -15 -5 -17   -4 -9       -4

Q: A hotel claims that 95% of its customers are very satisfied with its service. Complete parts a…

A: Solution-: Given: n=5, p=0.95 We want to find  (a) P(exactly 4 customers are very satisfied)=? (b)…

Q: Find the sample standard deviation. The top five scores on last semesters midterms were 90 97 100 90…

A: The question is about measures Given : Data - 90, 97, 100, 90, 93   To find : Sample std. deviation

Q: In 1980 and again in 2010, a Gallup poll asked a random sample of 1000 US citizens "Are you in favor…

A:

Q: Suppose that X has a moment generating function given by mx(t)=1/(1-4t)², te(-0.5,0.5). Find Var(-X)

A: Differentiation of moment generating function with respect to t and put t = 0 , for finding first…

Q: At a certain dealership, the probability that a customer purchases an SUV is 0.20.  The probability…

A: P(SUV)=0.20  P(Black)=0.15  P(Black SUV)=0.05

Q: outer output was used as a part of the model adequacy chi rocedure Test Tests for Normality…

A:

Q: a. What is the distribution of X? X~ N( b. Find the proportion of her laps that are completed…

A: It is given that the distribution of her race times is normally distributed.     Note: According to…

Q: Which of the following values cannot be​ probabilities?…

A: we know that ,1) all probability values are lies between 0 and 1 inclusive.2) and sum of all…

Q: An accounting professor claims that no more than one quarter of undergraduate business students will…

A: Solution-: Given: n=720, X=170, p=1/4=0.25 We want to find P(X≥170)=?

Q: A lightbulb manufacturer ships large consignments of lightbulbs to big industrial users. The…

A: Given Information: The production process is functioning correctly 90% of the time. When production…

Q: The probability distribution of a statistic is called a sampling distribution. O True O False

A: It is given that the statement about to the sampling distribution. Here, need to find out that the…

Q: (Assume standard normal distribution. Find the probability below. a. P( z 4.56)

A: standard normal distribution Z~N(0,1)

Q: Which of the following statements is true?I. The standard error is computed solely from sample…

A: Standard error of any Statistic is standard deviation of it's sampling distribution. That means the…

Q: The results of a common standardized test used in psychology research is designed so that the…

A: Given,mean(μ)=170standard deviation(σ)=10A raw score(X)=198

Q: You run a regression analysis and obtain the regression equation y = 1.784x 22.666 with a…

A: Formula for predicted response value (Y) Y= bX + a  Where X is explanatory variable

Q: Remaining Time: 1 hour, 13 minutes, 53 seconds. Question Completion Status: F 2 P L 4 5 P 6 163…

A:

Q: Suppose Z follows the standard normal distribution. Calculate the following probabilities using the…

A: Given that  Given that.   X~N( 0 , 1 )   μ=0  , ?=1 (for standard normal distribution)

Q: show that if A occurs in a larger proportion of the cases where B is than wgere B is not, then B…

A:

Q: The researcher found that the model’s effect size was very large where r = .325. Furthermore, r2 =…

A: The correlation coefficient is r = 0.325.

Q: Construct a 99​% confidence interval of the population proportion using the given information.…

A: The given confidence level is 99%, x=40,n=200.