.The following data represent the respective ages of 20 students pursuing graduate studies: 33                    37                    25                    40                    45 42                    43                    37                    27                    47 32                    29                    42                    55                    37 25                    58                    52                    38                    34             Using 2nd  row as your sample, compute sampling error 4.Find the z-value for 88% confidence interval. 5.Using #1 data & confidence interval in #4, determine the true mean of the population.

Q: What is the probability that a leap year selected at random will contain either 53 Thursdays or 53 F...

A: Solution is given:

Q: If 8 new teachers are to be divided among 4 schools, and one school must have at least three teacher...

A: The number of ways to divide 8 new teachers among 4 schools is 48=65536.

Q: . Derive the moment generating function of Bernoulli(p). Calculate the mean and the variance of the ...

A: We have given that  The random variable X follows Bernoulli (p). Here, we need to find the mgf of Be...

Q: The injury rate of a volleyball player is 20%. If he throws the ball 100 times, and if you know that...

A:

Q: The mishandling of a shipping container loaded with 750 cases of wine caused some of the bottles to ...

A: The relative standard deviation is given by σr=1-pN×p where p= Probability of a broken bottle N= Siz...

Q: A bag contains 3 yellow and 5 black balls. If 2 balls are drawn in succession without replacement, f...

A:

Q: Q10/ At room temperature (300 K) with the Fermi level located exactly in the middle of the bandgap, ...

A:

Q: 12. The events having no experimental outcomes in common is called: a) Equally likely events « b) Ex...

A: Given that  14... The probability density function of a Markov process is a) p(x1,x2,x3.......xn) = ...

Q: Four cards are drawn at random from a pack. Find the probability that they are a King, a Queen, a Ja...

A: GivenTotal no. of cards in a deck = 52No.of king cards in pack = 4No. of Queen cards in a pack = 4No...

Q: A $ion of given to omly high sch seniors. The sample mean test score is 1110, and the sample standar...

A:

Q: 16. In a Poisson Distribution, the mean and variance are equal. a) True b) False

A:

Q: The entire deck of 52 cards is dealt out to 4 players (the Ist player, 2nd player, 3rd player and 4t...

A:

Q: Playing cards Show your work and justify. 1. In how many ways can we order a deck of 52 playing card...

A:

Q: A die is tossed only once. What is the probability that either a number less than 5 or an even numbe...

A: if a die is rolled once than the possible outcomes areS=1,2,3,4,5,6

Q: 3% of the workers in a factory are union members. A random sample of 5 workers is taken from these w...

A:

Q: (2 .. putth card back in the deck. If you play this game 10 times, what is the probability that you ...

A: Here from given information  There are total 52 cards  Total 13 heart cards Total 26 black cards  13...

Q: (a) The standard normal curve is graphed below. Shade the region under the standard normal curve to ...

A:

Q: Suppose the probability of success in a binomial trial is 0.63. What is the probability of failure? ...

A: Given,The probability of success in binomial (p)=0.63

Q: What is the chance that : (i) a leap year selected at random will contain 53 Sundays, (ii) a non-lea...

A:

Q: f(x) = ke 2, x > 0 k O correct O Error

A:

Q: At bedtime, you read three books to your kids, Walker, Michael, and Luke. Together, they have 3232 b...

A: Given that  Number of books=32 books  3 books are randomly selected  We have to find the probability...

Q: olemsieq A A. Population: B. Population Mean: C. Means of Samples Drawn without Replacement from the...

A: Here use basic of sampling distribution 

Q: A purchasing office is to assign a contract for computer paper and a contractor for microcomputer di...

A: Given that, There are three firms a purchasing office can assign a contract for computer paper and a...

Q: (a) More heads than tails are obtained. (b) Tails occur on the even numbered tosses

A:

Q: now using MGF technique that if Z, ~ N(0,1), for i=1,2,3,4,5, then U = Ez ~ x² with degrees of freed...

A:

Q: Do you think this is a good idea? Find the expected value of hosting the tournament.

A: Here Given Club Expense=$12,000 Revenue from ticket=$18,000 Probability of rain=0.2  

Q: E. One letter of the name “EXTRA" is selected at random. Fnd the probability that the letter selecte...

A:

Q: If P(A) = 0.5, P(B)= 0.40 and P(A U B) = 0.70, find P(A/B) and P(A U B) where A is the complement of...

A: HERE GIVEN, p(A) = 0.5 p(B) = 0.40 p(A ∪ B) = 0.70

Q: your final answers and round your final answers to three decimal places. a) Find the probability tha...

A: here as per guidelines i have calculated 3 subparts  Here given, According to a recent survey of com...

Q: Read the given situation and carefully answer. A close friend invited Anna to her birthday party. An...

A:

Q: 6. Suppose you walk a hiking trail at a speed which is uniformly distributed from 4 to 6 miles per h...

A: the pdf of the duration of the trip

Q: a. List the elements of a sample space for this observational experiment. b. If all elements in part...

A: Here given, A commercial building is designed with two entrances, door I and door II. Two customers ...

Q: Two dice are rolled once. What is the probability of getting a total of 7 orU

A:

Q: n(A u B) = 25, A) n(An B} = 5, and n(A) = 20 x (5) y B) n(A U B) = 55, n(An B) = 15, and n(B) = 35 x...

A: Given that  Venn diagrams data . Here, n(A) = x  ; n(B) = y   We know that  Union of events  n(A∪B) ...

Q: Suppose that a family is leaving on a summer vacation in their camper and that M is the event that t...

A: Venn diagram: Venn diagrams are used to represent the relations between the finite groups represente...

Q: A card is drawn from a full pack. Find the probability that it a King or a Queen

A: no.of king cards=4no.of queen cards=4Total no.of cards=52

Q: A bag contains five green marbles and three red marbles, and then a fair coin is tossed once. Find t...

A: Event can be determined as independent and dependent events. If the two events does not cause any im...

Q: What is the variance of the profit?

A: Here given, A contractor is considering a sale that promises a profit of ₱92 000 with a probability ...

Q: Which formula would you use to solve this problem? The population percentage is 46%. What is the pro...

A:

Q: Probability task: A bag contains 5 white and 3 black balls. Two balls are drawn at random one after ...

A: Given,no.of white balls=5no.of black balls=3Total no.of balls=8

Q: Find in how many ways can two admirals, three generals, and four lieutenants can be seated in a row ...

A: Total seats = 9 Admirals =2 Generals=3 Lieutenants =4

Q: d. Create a plot of cdf of the normal distribution. e. Draw a random sample of size 1000 from the di...

A: d. Plot of cdf of the normal distribution: Heights of female is normally distributed Nμ=165, σ2=7.52...

Q: What is the probability that the accident occurred on either the evening or the graveyard shift?

A: It is given that P(evening) = (6 + 25)% = 31% = 0.31 P(graveyard) = (2 + 30)% = 32% = 0.32

Q: It is commonly said that those who are good in Mathematics are not good in English. A teacher tried ...

A:

Q: Please refer to book section 12.2 problem 76 for help if needed. A bean bag is randomly thrown onto ...

A: a bean bag is randomly thrown onto the square Find p( red or yellow ) =?

Q: It is possible to determine the population’s mean and standard deviation? If so, what are these valu...

A: Here given population values 50 and 80   

Q: We have a bag of marbles, 10 red and 2 blue. We randomly pull two marbles, with replacement. Find ea...

A: Given,no.of red marbles=10no.of blue marbles=2Total marbles=12

Q: A die is tossed only once. What is the probability that either a number less than 5 or an even numbe...

A: Given: A die is tossed only once. To find : The probability that either a number less than 5 or an e...

Q: 13. A supplier delivers an order for 30 electric toothbrushes to a store. By accident, three of the ...

A: