A class consists of 24 women and 76 men. If a student is randomly​ selected, what is the probability that the student is a​ woman? Question content area bottom Part 1 A.StartFraction 19 Over 25 EndFraction 1925 B.six nineteenths 619 C.StartFraction 1 Over 100 EndFraction 1100 D.StartFraction 6 Over 25 EndFraction

Q: can you write this out, in text this is confusing

A: The standard deviation is $40.

Q: A sales manager for a large department store believes that customer spending per visit with a sale…

A: given Level of significance ɑ=0.01, df=328

Q: Overtime Hours Worked A random sample of 16 registered nurses in a large hospital showed that they…

A: GivenMean(x)=44.6standard deviation(s)=2.8sample size(n)=16confidence level=95%

Q: Given the following stem-and-leaf plot/diagram of quiz scores. The median score is 1 | 03 2 | 2224…

A: from the given stem-and -leaf diagram the data is10, 13, 22, 22, 22, 24 , 31, 32, 33, 33 ,33 , 33,…

Q: 65. Scholarship Examination Scores. At Western University the historical mean of scholarship…

A:

Q: In a particular hospital, 6 newborn babies were delivered yesterday. Here are their weights (in…

A: standard deviation σ2 =   Σ(xi - μ)2n

Q: c. mean is 1 and the standard deviation is 0. O d. mean and the standard deviation can have any…

A: Given, standard normal probability distribution.

Q: efore beginning a study investigating the ability of the drug heparin to prevent…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: 66. Exposure to Background Television. CNN reports that young children in the United States are…

A:

Q: Suppose you are asked to toss a coin 16 times and calculate the proportion of the tosses that were…

A: A coin tossed 16 times :  For a single throw A coin has equal probability to get head and tail…

Q: Independent random samples were selected from two quantitative populations, with sample sizes,…

A:

Q: Suppose an item follows a binomial distribution with a constant but unknown p. If 81 sample cases or…

A:

Q: Use the range rule of thumb to estimate the standard deviation to the nearest tenth.   ​15, 42,​ 53,…

A: The maximum value is 53 and the minimum value is 7.

Q: According to a recent research, 13% of people living in a city has experienced COVID-19 related…

A: Given info: Let X denotes people living in a city has experienced COVID-19 related symptoms in the…

Q: The probability distribution of all possible values of the sample proportion is the O a. probability…

A: 19) In this case, we need to identify a suitable answer for the given statement.

Q: A normal probability distribution a. can have mean of any numerical value. O b. needs to have a mean…

A:

Q: John's math course requires 5 tests. His first 4 grades were 72, 89, 91, and 93. To end up with an…

A:

Q: One card is drawn from a standard deck of 52 playing cards. Find the probability the card is a black…

A: 52 card=26(red)+26(balck)

Q: An independent sample t test provides the following data: Size of sample A is 16, size of sample B…

A: GivenSample size for A(n1) = 16Sample Variance(s21) of sample A =60.8Sample size for B(n2)=16Sample…

Q: Consider the data set representing the ages (in years) and maintenance costs (in * thousands of…

A: From the given information we make the following table x(Age) y (Cost) x2 y2 xy 2 5 4 25 10 4…

Q: According to the type your answer... we expect the mean of a sample (M) to be closer to the mean of…

A: Central limit theorem : Distribution of sample means approximate a normal distribution as the sample…

Q: 7. Starting Salaries for Business Graduates. Mi. Employment Research Institute found that starti…

A: Given claim: The mean starting salary for business majors in 2018 is greater than the mean starting…

Q: suppose data were collected from a sample of 10 Pizza restaurants located near college campuses. For…

A:

Q: Write down the log-likelihood function for the problem and obtain an analytical solution for the…

A: The given function is: f(x)=[2πσ2]-12e-(y-μ)2σ2. The unknown parameters of interest are: μ and σ2.…

Q: 1) Let X₁, X2, X3, ... Xn be a sequence of independent and identically distributed with the…

A: As per our guidelines I can solve only first 3 subparts. Kindly post the remaining subpart again and…

Q: n a random sample of 100 customers in Washington, the company found that the average sale was $7.87…

A: Comment: As per the our company guidelines we are supposed to answer only one question. Kindly…

Q: 2. Assume that the prices paid for housing within a neighborhood have a normal distribution, with…

A: From the provided information, Mean (µ) = 100000 Standard deviation (σ) = 35000 X~N (100000, 35000)

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 17 for the population…

A: given data 95% confidence interval margin of eeror(E) = 4σ = 17n = ?

Q: Before every flight, the pilot must verify that the total weight of the load is less than the…

A:

Q: te and interpret the coeffici 0.05 level of significance, is calories and sugar?

A: Given, Sample Calories (x) Sugar (y) Cereal 1 81 5 Cereal 2 100 3 Cereal 3 98 4 Cereal 4…

Q: rd deviation of 2980 miles. The company recently starting using new contracts which require…

A: Given that  Sample size n =44 Sample mean=12330 Population standard deviation =2980 NOTE:- According…

Q: 9

A:

Q: Demand for all changes at Garcia's Garage has been as follows Month January February March Apr May…

A: The table shows the oil changes for each month.

Q: A non-zero alpha can be an arbitrage opportunity. O True O False

A: The correct answer os TRUE.

Q: The shape of the distribution of the time required to get an oil change at a 20-minute oil-change…

A: Given that.   X~N( μ , ?)   μ=21.4     , ?=3.6   Z-score =( x - μ )/?

Q: A genetic experiment with peas resulted in one sample of offspring that consisted of 422 green peas…

A: From the provided information, Sample size (n) = 422 + 154 = 576 From which 154 yellow peas so…

Q: For this problem, use the multiple regression equation below to complete parts (a) and (b). Y₁ = 10…

A: Slopes in multiple regression is known as partial slopes :

Q: Carlos buys a bax of doughnuts. The box contains 9 chocolate glazed, 5 Boston crème, and 7 powdered…

A: Total doughnuts = 21 Chocolate glazed = 9 Boston creme = 5 Powered sugar= 7

Q: A random sample of 35 high-school students averaged 7.3 hours of sleep per night. Assume a…

A: Obtain the 95% confidence interval for the population mean. The 95% confidence interval for the…

Q: study was conducted to determine whether an expectant mother’s cigarette smoking has any effect on…

A: According to the given information in this question We need to answer three subparts

Q: Fill in the P (X=x) values to give a legitimate probability distribution for the discrete random…

A: To be a legitimate probability distribution,  there must be two conditions to satisfy  1.…

Q: QUESTION 5 A standard normal distribution is a normal distribution with a. a mean of 1 and a…

A: Method : standard Normal distribution having         Mean= 0 and standard deviation = 1

Q: Suppose 144 independent random t values that represent the waiting time until an event happens are…

A:

Q: Logging activity in forests is thought to affect the behavior of black bears. An important measure…

A: Given that data 39.9, 23.5, 42.1, 29.4, 34.4, 40.9, 27.9, 22.3, 13.0, 20.1, 13.3, 8.6

Q: 15. The inside diameter of a randomly selected piston ring is a random variable with mean value 12…

A: Given data mean value=12cm standard deviation=0.04cm

Q: A financial analyst engaged in business valuation obtained financial data on 71 drug companies. Let…

A: (a)   From the information, given that   Let Y denotes the price-to-book value ration. Let X1…

Q: Suppose you wish to compare the characteristics of tuberculosis meningitis in patients infected with…

A: a)No, Two underlying populations do not have equal variances. as their difference of standard…

Q: The overhead reach distances of adult females are normally distributed with a mean of 197.5 cm and a…

A: Given that.   X~N( μ , ?)   μ=197.5     , ?=8.3   Z-score =( x - μ )/?

Q: are summary statistics for randomly selected weights of newborn​ girls: n=234​, x=30.4 ​hg, s=7.9…

A: given datan=234x=30.4s=7.9CI=0.98α=1-0.98=0.02

Q: Our neighbors have 5 children; 2 girls and 3 boys (one more on the way-gender not yet revealed). How…

A: