Instruction: Reflect on the question below and write your response on your journal. 1. When do we use t-distribution? 2. How applicable is it in real situations?

Q: 1. Find the probability that a damaged bag is from supplier A.

A: here define events  cement from supplier A  = A cement from supplier B  = B damage bag arrived  = D…

Q: A female has a firstborn with a condition. The female's recurrence risk of a certain condition drops…

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Q: Exercise 2. Show that the exponential distribution for time to failure has the forgetfulness…

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Q: Example 9.8 Let us take an example to calculate mean and standard deviation of a binomial distribu-…

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Q: Failing to meet one or more of the 9 Brandford-Hill criteria means that the studied relationship…

A: Casuality of the variables can be explained using the 9 Brandford-Hill criteria. It is a basic for…

Q: Suppose X and Y have a bivariate normal distribution with ox = 0.04, oy = 0.08, μx = 3.00, μy =…

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Q: A manufacturer claims that the average capacity of a certain type of battery your company consumes…

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Q: A frequency table of grades has five classes (A, B, C, D, F) with frequencies of 5, 13, 13, 6, and 2…

A: We have given that,  Grade Frequency (f)  Relative frequency A 5   B 13   C 13   D 6…

Q: Question * Suppose that 70% of all diners choose vegetarian meals when eating away from home. On a…

A: Given that  Population proportion p=70%=0.70 Sample size n =20 Mean =μ = np=20×0.70=14 S.D=?…

Q: Suppose X has an exponential distribution with a mean 11. Determine the following. Round the answers…

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Q: 201 1 1 Find the probability of obtaining. Sum 7 in dice single toss of pair of التاريخ الموضوع :

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Q: he game starts with three players placing their shar e 50 small balloons - 45 of which are blue and…

A: 50 Balloons 45 Balloons Blue 5 Balloons Red   B P(b) BxP(b) 0     50     100…

Q: Suppose that a sports event, called, "Palarong UPLB', which is played annually by different colleges…

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Q: P(Y'|D') =D (s

A: HERE use given Contingency table and baye's Rule

Q: A survey determines the odds in favour of using a social media app are 31:19. Determine the…

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Q: The probability that the head of a household is home when a telemarketer calls is 0.4. Given that…

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Q: 3.) Starting Salaries. Starting salaries (in thousands of dollars) for social workers with a…

A: Given  Number of observations given (n) = 25 The data is as below 28 29 27 32 30 33…

Q: Entry to a certain university is determined by a national test. The scores on this test are normally…

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Q: Construct a 99% confidence interval to estimate the population mean using the accompanying data.…

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Q: Q4: Let * denote the mean of a random sample of size 25 from a gamma type distribution with a = 4…

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Q: The average woman's height is 65 inches with a standard deviation of 3.5 inches. What proportion of…

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Q: к учу PCX,Y) X=1,2 y=1,2,3 other Find the marginal probability function 5 of Y P (Y)

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Q: 7.) Assume that the speed of automobiles on an expressway during rush hour is normally distributed…

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Q: ging from recent experience, 5% of the computer keyboards produced by an automatic, high-speed…

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Q: 15 A continuous r.v. X has CDF " OF 16 17 X Co F(X 1 = === x OBX C1 15X K Find value of k 18 19 20…

A: Given the CDF of a random variable x.  We have to find the value of K.

Q: random sample of butter of a particular brand has an average fat content of 16 grams and standard…

A: Given that  Population standard deviation =3 Margin of error =E =0.18 92% confidence level.

Q: Farmer Joon must determine whether to plant corn or wheat. If he plants corn and the weather is…

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Q: he mean eggshell thickness for quail eggs that are 15 mm in length? um he mean eggshell thickness…

A: Given:- y = 0.185 +0.007x and that sigma= 0.005.

Q: 5. A cinema sells tickets for the opening of "Spider-Man: No Way Home" with 50 seats. From…

A: * SOLUTION :-  (5) Given that ,

Q: 1. Suppose that a sports event, called, 'Palarong UPLB', which is played annually by different…

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Q: 3:07 10 %840 Asiacell * Y. MO 0.00K/sl oodi-zain IQ quiz103.pdf → X=122 y=11213 other kx²j P(x,y) =…

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Q: Comstruct the graph and compute for the value of skewness. Identify the type of skewness and its…

A: Given: Mean=45Median=44standard deviation=6

Q: 9 A tire manufacturer advertises. "The median life of our new all-season radial tire is 50,000…

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Q: Find x and y. if (x y) (² _-3) = 4 -1 = (2-4).

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Q: The actual tracking weight of a stereo cartridge that is set to track at 3 g on a particular changer…

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Q: In a particular city, the annual income of the population is normally distributed with a mean of…

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Q: Question * Suppose that a fast food restaurant can expect two customers every 3 minutes, on average.…

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Q: Question * Suppose we are interested in the relationship between an individual's brown hair and skin…

A: The joint pdf of X=degree of brown hair color and Y=degree of skin hair color is given. We need to…

Q: EXCERSICE Let X₁,..., Xn be a random samp x < x. (a) Show that X(1) = min, X, is (b) Use Basu's…

A: *Answer:

Q: 3.) Starting Salaries, Starting salaries (in thousands of dollars)) for social workers with a…

A: a)   b)

Q: I have a bag with 5 fair dice. Two are 4-sided, two are 6-sided, and one is 12-sided. I reach into…

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Q: Find the following probabilities for the standard normal random variable z: (a) P(−2.19 ≤ z ≤ 2.2) =…

A: We will use Std. Normal table to find the required probabilities.

Q: Suppose that for a very large shipment of integrated-circuit chips, the probability of failure for…

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Q: Illustration 72. A certain nurshing home usually admits 50 patients per day. On the average,…

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Q: Example 8.30 If a machine is set up correctly it produces 90 per cent good items; if it is…

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Q: Seventy barstools from a random sample of 3,500 barstools were damaged in the shipping process.…

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Q: a random sample of 68 cows on a farm,the average weight is 172.2 lb. with a standard deviation 4.2…

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Q: *find the value of z such that P(Z>z)=0.036

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Q: 4. Suppose that a sports event, called, 'Palarong UPLB', which is played annually by different…

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Q: Refer to the following MegaStat output (some information is missing). The sample size was n=24 in a…

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