1. Find the probability that this customer service received 25 calls in an hour. Answer: 0.0737 2. Find the average calls this customer service received in 10 minutes. Answer: 4.5000 3. Supposed that the number of emails and the number of calls to this customer service are independent random variables. Find the probability that this service channel received 7 feedbacks (emails or calls) in 9 minutes

Q: The degrees of freedom for the sample containing 10 measurements is v = 10. True False

A:

Q: Find the probability that all 5 gearboxes will fit properly. b) Find the mean, variance, and standa...

A: Here given, In an assembly-line production of industrial robots, gearbox assemblies can be installed...

Q: Recall the conditions for a binomial probability. There are n independent trials, each with only one...

A: Given that P = 20% , n =350 Probabilty ( p ) = ? , mu = ?

Q: (e) Either the plant at site 1 or both of the other plants are completed by the contract date. O A, ...

A: Given that, Either the plant at site 1 or both of the other plants are completed by the contract dat...

Q: Basketball e) Wharis une provabimy unar a student chosen at random from this group plays both volley...

A: Here total 200 students were surveyed about sports they regularly participate 

Q: 4 Discrete e Random Variables are given. Prebbility Discrete Funden( PDE); Por ro Q1,15, 2, 25,3,35 ...

A: Solution

Q: SciTools Incorporated, a company that specializes in scientific instruments, has been invited to mak...

A:

Q: Military Radar and missile detection systems are designed to warn a country of enemy attacks. A reli...

A:

Q: A method produces nanoparticles of various sizes. The diameters of a sample of 60 nanoparticles prod...

A:

Q: Null Hypothesis Alternative Hypothesis One tailed or two tailed? Test

A: Calculate the Sample Means and Sample Standard Deviation for given data 

Q: The net weight (in oz) of a dry bleach product is to be monitored by F and R control charts using a ...

A: Solution: a.) To setup  and R control chart Step:1 First we compute means of sample1, sample 2 -----...

Q: The probabilities that a customer buys 1, 2, 3, 5, 8 apples each day in a grocery store are 0.20, 0....

A:

Q: 11. What is the probability that you will win 3 tickets? a A. 1/16 B. 1/4 C. 5/16 D. 3/8 12. What is...

A: here in given wheel total sections = 16 no. of 1 on wheel = 6 no. of 2 on wheel = 5 no. of 3 on whee...

Q: Problem 7 A mall is promoting an event of sales. Every $10 a customer spends can get a fortune ticke...

A: Given information: Chance of winning a gift for each ticket = 0.08 P(Getting at least one gift) = 0....

Q: If a machine is correctly set-up it produces 90% acceptable items, if it is incorrectly setup it pro...

A:

Q: When calculating confidence intervals for differences between two population means, the sample size ...

A: Determine whether the given statement is true or false

Q: Suppose another method was used to produce nanoparticles, and the diameters of a sample from this me...

A: For the given data Find 95% Confidence interval for mean Value of margin of error  =?

Q: 1) Shade (ANc)' U B

A:

Q: A study showed that 64.5​% of occupants involved in a fatal car crash wore seat belts. Of those in ...

A: Solution: Let A be the event that  occupants involved in a fatal car crash wore seat belts. P( A)= 0...

Q: How many different ways can a gold medal, a silver medal, and a bronze medal be awarded in a race be...

A:

Q: 6. In how many ways be 5 couples be seated in a round table if each couple consists of a man and a w...

A: 6) Given that,  There are 5 couples and they are to be seated in a round table such that each couple...

Q: () A class consists of 80 students, 25 of them are girls and 55 boys, 10 of them are rich and remain...

A:

Q: Find P (-2.15 <Z<1.63)

A: Given:  z be the standard normal variate then to find probability p(-2.15&lt;z&lt;1.63)??

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a mea...

A:

Q: If 14% of active duty soldiers in the U.S. Army are women. Find the probability that none of the fou...

A: Let X be the number of women soldier in U.S army from binomial distribution with probability (p)= 0....

Q: Consider the transformation Y= 1/X, and the density function f(x) = 3x² for 01

A:

Q: There are 1000 students in the year level and they have to participate in a certain activity. They c...

A:

Q: HW/ Hw/ $ =4

A: Given that  1/8=4x We have to find the value of x :   

Q: 1) A shipment of five computers contains two that are slightly defective, If a retailer receives thr...

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

Q: An  article  in  Quality  Engineering  presents viscosity  data  from  a  batch  chemical  process. ...

A:    

Q: For mutually exclusive events R,, R2, and R3, we have P(R,) = 0.05, P(R2) = 0.4, and P(R3) = 0.55. A...

A: Solution: Let R1, R2and R3 be three mutually exclusive events.  P(R1)= 0.05P(R2)= 0.4P(R3)= 0.55P(Q|...

Q: COPD) is quite common with over 3 million cases per year in the United States alone. This disease ha...

A: Chronic Obstructive Pulmonary disease symptoms are shortness of breath and risk of mortality among e...

Q: what is a player's probability of winning if they purchased 4000 different tickets? Note here

A: Here use hypergeometric distribution because without replacement model 

Q: of the random variable K repres envoys of the random variable B.

A:

Q: What important skills must develop in getting the probability?

A: The probability associated with an event is defined as the chance of occurrence of that event.

Q: If Rachel’s hair grows 3.5 inches in 6 months. How much would you expect her hair to grow in 2 years...

A:

Q: Based on a poll, among adults who regret getting tattoos, 15% say that they were too young when they...

A: As per guidelines expert have to answer first question three subparts only dear student please uploa...

Q: If A and B are independent events, show that A'and B are also independent. [Hint: First establish a ...

A: A and B are independent iff  P(A⋂B)=P(A)P(B)   

Q: (e) What is the probability that total waiting time is between 3 and 8 min? (f) What is the probabil...

A: Note: Since you have asked for subparts (e) and (f) that is why only these two subparts have been an...

Q: Past experience has shown that, on the average, only one in ten wells drilled hits oil. Let X be the...

A: Hello thank you for the question. According to honor code can answer only three parts at a time. Sin...

Q: Let X be the damage incurred (in $) in a certain type of accident during a given year. Possible X va...

A:

Q: Use the identities A = ANS and S = BUB and a distributive law to prove the following. (a) A = (ANB) ...

A:

Q: The table below shows the number of survey subjects who have received and not received a speeding ti...

A:

Q: The population proportion is 0.38. What is the probability that a sample proportion will be within +...

A: Given that p =0.38 Sample proportion within  ± 0.04 Find the probabilities for ( a ) n =100 ( b ) n ...

Q: 1 2 3 4 0.0 P(X 0.3 0.2 0.0 0.2 0.0 82 =x) 93 62 02 46 15

A: Given data is  x 0 1 2 3 4 5 P(X=x) 0.393 0.262 0.002 0.246 0.015 0.082

Q: It is believed that the average height of General Engineering (GE) students is 1.72 meters, which is...

A:

Q: Carmen has a deck of 10 cards numbered 1 through 10. She is playing a game of chance. This game is t...

A:

Q: Direction: Complete the table below by constructing and probability distribution of Example 3 (refer...

A:

Q: Let {N(1), t z 0} be a nonhomogeneous Poisson process with intensity function A(1), t20 However, sup...

A: Given that Nt, t≥0 be a nonhomogeneous Poisson process with intensity function λt, t≥0.

Q: Do the produced nails exceed the specification of the engineer at a 1% level of significance. 1. Wha...

A: Test is that whether the produced nails exceed the specification of the engineer. It is given that P...