e) In a survey of 700 random households in a particular city in NCR, adults have b asked if they use social media to stay connected with other people. There are 523 w have said yes. Use a 90% confidence to estimate the proportion of all Adults who the social
Q: An experiment consists of tossing a die and flipping a two coins. Let X be a random variable whose…
A: Ha
Q: d.) Construct a stem-and-leaf display
A: First Arrange data in ascending order. 27, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 30, 30, 30,…
Q: Records indicate that the mean weight of mature rainbow trout in Eagle Creek is 1.75 kg with a…
A: Given that σ=0.37 , s=0.49 , n=19
Q: snoilelugoq a.0 For numbers 13-15, refer to the given problem below. A trainer says his team…
A: Given that The average of 92 physical fitness rating μ=92
Q: Q.5 From a lot of 2000 units, 20 units are drawn as a sample. To accept the lot, not more than 2…
A: The following information has been given: The lot size is N=2000. The sample size is n=20. The…
Q: The amount of electricity consumed (in kWh) on a randomly chosen day in a warenouse Can probability…
A: Given that Probability density function f(x) f(x)=30/x2 , 25<x<150 0…
Q: In how many ways can the hosts of the ASEAN Summit choose the main judge, secondary judge, and…
A: The multiplication principle states that if a task is completed in multiple steps, then the number…
Q: T'he folloWing table represents the pass percentage of students from Bangalore Example 1 university.…
A:
Q: Residents in a small village are classified by their gender and educational level. For the…
A: Residents in a small village are classified by their gender and educational level. For the…
Q: 3. Ruby's dog has 8 puppies. The puppies include white females, 3 mixed-color females, 1 white male,…
A: Given: Total puppies = 8 Mixed colored females = 3 White male = 1 Mixed colored male = 2
Q: D.1.2 Test the hypothesis that the average content of containers of a particular lubricant is 10…
A: Given n=10 X-bar=10.04
Q: 2 0 -1 Example 56. Evaluate 0 1 1 3 -4
A:
Q: Find the 54th percentile, P54, from the following data 13 18 21 2 22 23 28 29 31 32 34 35 36 37 39…
A:
Q: nd the probability that a perso (a) The probability that a persc (Round to four decimal places (b)…
A: Given: A person flips a coin
Q: The shear strength of each of ten test spot welds is determined, yielding the following data (psi).…
A: Given that
Q: Given a mean and standard deviation of the base 10 logarithms of −0.43 and 0.12, respectively, find…
A: The intensity of rainfall is a measure of the amount of rain that falls over time. Let a random…
Q: A computer centre has three printers, A, B, and C, which print at different speeds. Programs are…
A: Given information: The probability that a program is routed to printers A, B, C are 0.6, 0.3 and…
Q: Marcela and Lorenza agreed to go under one-month observation period. During the time, t shion…
A: *Answer: The claim of Marcela: Not more than 5% of the garments she sewed did not pass the quality…
Q: The probability that a 50-year old female will die within 1-year is 0.000829. If an insurance…
A: From the provided information, The probability that a 50-year-old female will die within 1-year =…
Q: ologist reports a confidence interval of (2.2,4.0) when estimating the mean height (in centimeters)…
A: Given that Confidence interval. (2.2 , 4.0) Margin of error =E
Q: 3. z - 2.79 4. z - 1.66 5. z = 0.12
A:
Q: In the country of United States of Heightlandia, the height measurements of ten-year-old children…
A:
Q: A coin is tossed three times, the result being either Heads or Tails. Let X represent the number of…
A: Three coins tossed P ( atleast one head ) is = ?
Q: 11. Refer to the data below. What is the value of the second decile? The scores of 15 students are…
A: Arrange the given data in ascending order.72, 73, 74, 74, 77, 79, 79, 79, 80, 81, 82, 82, 83,…
Q: It is known that in a batch of milk cartons, 30% are underfilled. In a sample of six milk cartons…
A: Given that the batch of milk cartons underfilled is 30% and there are sample of six milk cartons.…
Q: What do you call the set of all possible outcomes in an experiment? a. Event b. Random Variables…
A: Event: Event may be defined as happened or occurrence of an experiment Sample Space: all possible…
Q: shows that 95% of submachine gun buyers purchase a box of bullets. What is the probability that a…
A: Here Given P(P)=Probability Personnel buy Pistol=0.85 P(G)=Probability that Personnel buy Gun=0.15…
Q: 9. You are tasked to draw two cards from a deck without replacement. What is the probability of…
A: About Deck There are 52 card in the deck in which they divided into two color i.e red(26) and black…
Q: Consider an automobile assembly line in which each car undergoes two types of service: painting,…
A:
Q: Construct the indicated confidence interval for the population mean u using the t-distribution.…
A:
Q: From a large number of actuarial exam scores, a random sample of 375 scores is selected, and it is…
A: Givensample size(n)=375x=266p^=xn=266375=0.7093confidence interval = 95%
Q: (a) Find the mean of p. (b) Find the standard deviation of p. (c) Compute an approximation for P…
A:
Q: Group A B AB y 7 20 3 9. 3 10 2 aubieot ia golooted ot rondem ubot ig the
A: GIven, Total = 60 total number of people with type A blood = 7+3 = 10 a) P( getting someone with…
Q: (b) Use rules of variance to obtain an expression for the variance and standard deviation (standard…
A: Variance is the measure of dispersion. It is calculated by taking sum of square difference from the…
Q: What is the probability of picking a black card or a jack if prior to selection all the black cards…
A: here given , prior to selection all the black cards from 2 to 7 are all replaces with jack of hearts…
Q: X is a discrete random variable having a probability mass function P(X = x) defined as follow X = x…
A: Solution
Q: A new drug is being trialled to help reduce heartburn in people over the age of 60. Nine individuals…
A: Given that the time until each person's next bout of heartburn, in days, is thought to be modelled…
Q: 2. During the observation period, it was observed that on the average, the number of simple garments…
A: Given information: During the observation period, Total no. of garments completed per day=10 The…
Q: 7. Construct a sub-divided bar diagram from the following data, regarding the number of stu- dents…
A:
Q: A simple random sample of 900 students from a college with student population 10,000 is taken to…
A: The proportion value is obtained as given below: p^=Number of observationSample size=378900=0.42…
Q: 2.) Use the following data which represents the population of the 20 most populous cities in the…
A: For the given data construct frequency distribution
Q: Bowl B1 contains 3 white and 9 red marbles; bowl B2 contains 8 white and 4 red marbles; bowl B3…
A: Given that, Bowl B1 contains 3 white and 9 red marbles Bowl B2 contains 8 white and 4 red…
Q: According to previous studies, the mean distance each visitor in Greenspan National Park hikes…
A: The random variable distance follows normal distribution. We have to test whether the mean distance…
Q: The probability of being dealt a hand containing 3 spades, 4 hearts, 2 diamonds, and 2 clubs is.…
A: Here use hypergeometric distribution
Q: Use the tree diagram below to predict the probability of flipping 3 coins and getting all heads or…
A: The number of coins flipped is 3.
Q: Determine whether the events are independent or dependent then find the probability. Upload a photo…
A: It has not been mentioned in the question how many tiles are being selected and whether the…
Q: Find the value of the standard normal random variable z, called zo such that: (a) P(z < zo) = 0.8386…
A: As per bartleby guideline expert have to answer first question three subparts only dear student…
Q: The spinner is spun one time. Find the probabilities. P(A) = P(C) %3D A A B P(B U C)= P(BC AE
A: Given that A spinner is spun one time S=(A,A,A,B,B,C,D,E) n(S)=8 Note: According to bartleby…
Q: In a lecture class, there are students in which 35% of them lives in Luzon, 40% lives in Visayas…
A: IX Given information: P(lives in Luzon)=35%=0.35 P(Visayas)=40%=0.40 P(Mindanao)=1-0.35-0.40=0.25…
Q: 25.) What is the difference between the value of a sample statistic and the corresponding population…
A: We have given that the information about to the sample statistic and corresponding population…
write your answers legibly and follow the formulas indicated on the picture. thank you !
Step by step
Solved in 2 steps
- The molecular weight of a particular polymer should fall between 750 and 1,035. Thirty samples of this material were analyzed with the results X-bar = 902 and s = 90. Assume that molecular weight is normally distributed.imagine a large class where nearly everyone scores between 83.84%, with hardly any dispersion beyond this narrow range (so it would appear to have a very narrow peak). How would your describe this distribution of data in terms of kurtosis?The compressive strength of concrete is normally distributed with mean 2500 psi and standard 50 psi. Find the probability that a random sample of n=5 specimens will have a sample mean diameter that falls in the interval from 2499 psi to 2510 psi. Answers in 4 significant figures.
- Later, when the medical devices are in full production, a consultant advised that the breaking strength of these devices should not be less than 5.5 psi (pounds per square inch) on average. In the latest batch produced, a technician has noticed a visual defect that may affect the breaking strength of the devices. To investigate, a sample of 8 devices are randomly selected from the batch and the pressure at which they break are recorded as : 6.6, 7.7, 8.0, 6.3, 6.1, 6.3, 6.3, 6.1 these are summarized as having an average breaking strength of 6.68 psi and a standard deviation of s = 0.75 psi. Test, at significance level α = 0.05, whether there is evidence that the average breaking strength of the batch of devices is less than the required breaking strength, by testing the hypotheses: H 0: μ = 5.5 psi H a: μ < 5.5 psi. An estimate of the population mean is . The standard error is . The distribution is (examples: normal / t12 / chisquare4 / F5,6). The test statistic has value TS=…A random sample of 25 tires gave the average life as 38000 km and S.D. as 5000 km. Can it be concluded that the sample is drawn from a population with a mean life of 40000 km?(a) Calculate a 95% two-sided CI for the true average bond strength. (b) Calculate a 95% two-sided CI for the proportion of all such bonds whosestrength values would exceed 10. show major intermediate steps.
- In response to concerns about nutritional contents of fast foods, McDonald’s announced that it would use a new cooking oil for its french fries that would decrease substantially trans fatty acid levels and increase the amount of more beneficial poly-unsaturated fat. The company claimed that 97 out of 100 people cannot detect a difference in taste between the new and old oils. Assuming that this figure is correct (as a long-run proportion). Let X denote the number of individuals who can taste the difference between the two oils in a random sample of 1000 individuals who have purchased fries at McDonald’s. If it turns out that 65 individuals in the sample can taste the difference between the two oils, would you question McDonald’s claim? Explain why or why not.In response to concerns about nutritional contents of fast foods, McDonald’s announced that it would use a new cooking oil for its french fries that would decrease substantially trans fatty acid levels and increase the amount of more beneficial poly-unsaturated fat. The company claimed that 97 out of 100 people cannot detect a difference in taste between the new and old oils. Assuming that this figure is correct (as a long-run proportion). Let X denote the number of individuals who can taste the difference between the two oils in a random sample of 1000 individuals who have purchased fries at McDonald’s Find the Distribution of X.Assume that the helium porosity (in percentage) of coal samples taken from anyparticular seam is normally distributed with true population variance 0.36.(a) Compute a 95% two-sided CI for the true average porosity of a certain seam if the average porosity for 20 specimens from the seam was 4.85. (b) How large a sample size is necessary if the width of the 95% two-sided CI is to be 0.5? (c) Compute a 98% upper one-sided CI for true average porosity of another seam based on 16 specimens with a sample average porosity of 4.56.show major intermediate steps.
- In response to concerns about the nutritional contents of fast foods, McDonald’s announced that it would use new cooking oil for its french fries that would decrease substantially trans fatty acid levels and increase the amount of more beneficial poly-unsaturated fat. The company claimed that 97 out of 100 people cannot detect a difference in taste between the new and old oils. Assuming that this figure is correct (as a long-run proportion). Let X denote the number of individuals who can taste the difference between the two oils in a random sample of 1000 individuals who have purchased fries at McDonald’s. Use the normal approximation with continuity correction to find the probability that at most 5% can taste the difference between the two oils.A sample of 130 is drawn from a population with a proportion equal to 0.67 **Round to four decimal places as needed**Cal Poly Pomona found that 15% of its students withdraw without completing Calculus I course. Assume that 30 students registered for the course. Can we use normal approximation method to calculate #3? .