5. Suppose passengers arrive at a bus stop according to PP(A). Buses leaves the stop at times, T, 27, 3T,... etc. where T >0 is a fixed number. Assume that the bus capacity is sufficient so that when a bus leaves, there are no more passengers waiting at the stop. What is the average waiting time of the passengers?
Q: A cellular battery manufacturer claims that his battery when fully charged has mean life of 24 hours…
A: The set or collection of all possible observations is defined as the population.
Q: From previous experience, the owner of an apple orchard knows that the mean weight of gala apples is…
A: Claim : the mean weight of gala apples is 140 grams
Q: A random sample of 100 women is selected and their average salary is $65,123. What conclusion can…
A:
Q: An ATM personal identification number (PIN) consists of four digits, each a 0, 1, 2, ..., 8, or 9,…
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: If X1, X2,..., X, constitute a random sample of size from a population given by 2(0 – x) for 0 <x <0…
A:
Q: It is claimed that 75% of puppies are house-trained by the time they are 6 months old. To…
A: Given,Test statistic(Z)=1.47P-value=0.0708α=0.05H0:P=0.75H1:P>0.75
Q: Reading speed and accuracy were combined into a readability performance score (x), where a higher…
A:
Q: If the confidence coefficient is set at 85%, what is z? A) 1.96 B) 2.33 (c) 1.64 D) 1.44
A:
Q: b. In the year 2000, a survey of 977 U.S. adults were asked who they felt was the greatest…
A:
Q: In each of the following problems (a) state the null and alternative hypotheses, (b) compute the…
A: According to our policy we can answer only first question for remaining please repost the question.
Q: Which of the following would be an appropriate null hypothesis? a. The mean of a sample is equal…
A: Null Hypothesis contain 'less than or equal to ( <= )' , 'greater than or equal to ( >= )' or…
Q: A study shows that 15% of adult males don’t wash their hands in a public restroom. We take a random…
A:
Q: 5- calculate the Standard deviation of the following sub image.* 10 6 10 7 7 4 Your answer 4.
A: Given problem Given that Steps to find Standard deviation : i) Mean should be calculated by…
Q: a mean weight of 32 ounces. Assume the population what is the maximal margin of error associated…
A:
Q: For a normal distribution with a mean of µ = 500 and a standard deviation of σ = 50, what is…
A:
Q: Suppose a researcher is surveying four subjects: subject A, subject B, subject C, and subject D.…
A:
Q: 5. Kathy painted a picture and posted it on a social media site. The table shows the number of…
A:
Q: Two researchers want to compare the variability of the boiling temperature of object A and object B.…
A: Given that, Two researchers want to compare the variability of the boiling temperature of object A…
Q: a standard deviation of 9.8, and all the students' test grades in Social Studies had a mean of 63.4…
A: Given : a) For Lauren Test value =x= 75 population mean=μ = 76.4 population standard…
Q: QUESTION 5 Given the following information 1. The linear regression trend line equation for the…
A:
Q: Discuss and interpret the relation strength and direction indicated by this statistic. Test your…
A: Given sample data represents the self-reported height and weight of female participants.
Q: The p hat =0.25, proportion standard deviation=0.065, and z=1.960. 34.…
A: Solution-: Given: p^=0.25, σp=0.065, Z=1.96 What is the size of the sampling proportion?* (A)…
Q: What is the probability that the sample mean cholesterol level is greater than 212? The probability…
A: Given: μ=204σ=42.5Sample size, n=112
Q: Find the number of respondents needed in a poll to determine, within 1.5% margin of error, the…
A: The answer is attached below,
Q: Number of pets owned Frequency Relative Frequency Cumulative Relative Frequency 0 22 0.3607…
A: Outlier: An outlier is a set of data that varies substantially from other observational data in…
Q: using t-test for a population mean, we assume that the sample is selected randomly. The given…
A: Here's, we take sample from the population in the t-test.
Q: what if the standard deviation was 30, instead of 60
A:
Q: What does the Empirical Rule say? Can you use the Empirical Rule for ALL probabilities in a normal…
A: Introduction: It is required to discuss about the Empirical Rule.
Q: Q5. A simple random sample of 450 residents of Payatas is taken to estimate the proportion of people…
A: Given information We have given that; in a random sample of 450 residents of Payatas is taken to…
Q: A jar contains 6 red marbles, numbered 1 to 6, and 12 blue marbles numbered 1 to 12. Find the…
A:
Q: A local school board believes there is a difference in the proportion of households with school-aged…
A: Solution-: Let ps- the true proportion of households with school-aged children that would support…
Q: If n=27, x¯(x-bar)=41, and s=3, construct a confidence interval at a 98% confidence level. Assume…
A:
Q: 12). What is a percentile? In probability notation, how would you find the 85th percentile?
A: 12). What is a percentile? In probability notation, how would you find the 85th percentile?
Q: A teacher has two large containers filled with blue, red, and green beads, and claims the proportion…
A: Let p1= the true proportion of red beads in container 1 and p2= the true proportion of red beads in…
Q: Determine the sample mean, median, mode (if it exists), range, sample variance and standard…
A: Required Information: Here class intervals and corresponding relative frequencies are given. So, we…
Q: Complete the statement: If a null hypothesis is not rejected at the 5% level of significance, it A…
A: The probability of determining a test statistic value at least as extreme as the observed value…
Q: As the sample size increases, what happens to the sta A The standard error approaches zero (0). B…
A: Sample size increases
Q: weights of packages shipped by a company are normally distributed with a mean of 32.8lbs and a…
A: Given,mean(μ)=32.8standard deviation(σ)=5.4
Q: The average score of local students on a college entrance exam is 110 with standard deviation of 15.…
A: Empirical rule: According to empirical rule, approximately 68% of data falls within one standard…
Q: P(0)= 0.2, P(2)= 0.3, P(4)=0.3, P(6)=0.2…
A:
Q: Suppose that IQ scores in one region are normally distributed with a standard deviation of 17.…
A: Given dataσ=1760% of individuals from this region have IQ scores greater than 100
Q: from a population given by 1 for x> 8 g(x; 0,8) = elsewhere ind estimators for 8 and 0 by the method…
A: Solution
Q: b. In the year 2000, a survey of 977 U.S. adults were asked who they felt was the greatest…
A:
Q: what about line number 4?
A: The ascending order of the given data set is, 15, 17, 18, 19, 22, 25, 26, 26, 27, 33, 35, 50, 60 The…
Q: Use a t-distribution to answer this question. Assume the samples are random samples from…
A: Given data α=2.5%n1=17 n2=20
Q: Let x be a random variable that represents the percentage of successful free throws a professional…
A: Since you have posted a question with multiple sub-parts, we will solve first 3 sub-parts for you.…
Q: If P(A | B) = 0.3, compute P(A and B).
A:
Q: E Homework: Homework 4.3 Given that x has a Poisson distribution with u= 0.9, what is the…
A:
Q: The years spent in training of a girl group in Korea is normally distributed with an average of 5…
A:
Q: difference (first - second) in exam scores is -1.75 points with a standard deviation of 7.12 points.…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A report in LTO stated that the average age of taxis in the Philippines is 9 years. An operations manager of a large taxi company selects of 40 taxis and finds the average age of the taxis is 8.2 years. The of the population is 2.3 years. At can it be concluded that the average age of the taxis in his company is less than the national average?If a study determines the difference in average salary for subpopulations of people with blue eyes and people with brown eyes is NOT significant, then the populations of blue-eyed people and brown-eyed people are ________ different salaries. a) unlikely to have b) very unlikely to have c) guaranteed to have d) guaranteed to not have22 - It is desired to investigate the difference between the satisfaction rates of the customers in different hotels of the same establishment in a region. 1000 out of 1200 randomly selected customers in Hotel A and 1200 of 1500 randomly selected customers in Hotel B stated that they were satisfied with the hotel services. Which of the following is the point estimate of the difference in customer dissatisfaction rates between hotels A and B? a) 0.03 B) 0.08 NS) 0.067 D) -0.067 TO) -0.03
- In his doctoral thesis, L. A. Beckel (University of Minnesota, 1982) studied the social behavior of river otters during the mating season. An important role in the bonding process of river otters is very short periods of social grooming. After extensive observations, Dr. Beckel found that one group of river otters under study had a frequency of initiating grooming of approximately 1.7 for each 10 minutes. Suppose that you are observing river otters for 40 minutes. Let r = 0, 1, 2, ... be a random variable that represents the number of times (in a 40-minute interval) one otter initiates social grooming of another. Lambda = 6.8 (b) Find the probabilities that in your 40 minutes of observation, one otter will initiate social grooming four times, five times, and six times. (Round your answers to four decimal places.) P(4) = P(5) = P(6) =In his doctoral thesis, L. A. Beckel (University of Minnesota, 1982) studied the social behavior of river otters during the mating season. An important role in the bonding process of river otters is very short periods of social grooming. After extensive observations, Dr. Beckel found that one group of river otters under study had a frequency of initiating grooming of approximately 1.7 for each 10 minutes. Suppose that you are observing river otters for 30 minutes. Let r = 0, 1, 2, ... be a random variable that represents the number of times (in a 30-minute interval) one otter initiates social grooming of another. a) What is ?? b) Write out the formula for the probability distribution of the random variable r. P(r) = _________ c) Find the probability that one otter will initiate social grooming four or more times during the 30-minute observation period. (Round your answer to four decimal places.)In his doctoral thesis, L. A. Beckel (University of Minnesota, 1982) studied the social behavior of river otters during the mating season. An important role in the bonding process of river otters is very short periods of social grooming. After extensive observations, Dr. Beckel found that one group of river otters under study had a frequency of initiating grooming of approximately 1.7 for each 10 minutes. Suppose that you are observing river otters for 30 minutes. Let r = 0, 1, 2, ... be a random variable that represents the number of times (in a 30-minute interval) one otter initiates social grooming of another. a) Find the probabilities that in your 30 minutes of observation, one otter will initiate social grooming four times, five times, and six times. (Round your answers to four decimal places.) P(4) = P(5) = P(6) = b) Find the probability that one otter will initiate social grooming less than four times during the 30-minute observation period. (Round your answer…
- Suppose that 95% of the bags of certain fertilizer mix weigh between 49 and 53 pounds. Averages of three succesive bags were plotted, and 47.5% of these were observed to lie between 51 and X pounds. Estimate the value of X. State assumptions you make and say whether these assumptions are likely to be true for this example.1. A University Director wants to see whether the average time (in minutes) it takesstudents to reach classes on time is different for three groups. The data are shown here.Junior Senior Graduates35 9 1518 3 627 12 2724 6 2221 12 2414821a) At α=0.05, can the owner conclude that there is a significant difference among themeans?b) If there is a significant difference among the means, test each pair of means?Assuming that workers' salaries in your company are uniformly distributed between $10,000 and $50,000 per year. Find the amount of money that 35% of the workers make more than that value?
- Suppose the customers arrive at a Poisson rate of on eper every 12 minutes, and that the service time is exponential at a rate of one service per 8 minutes. What are the average number of customers in the system(L) and the average time a customer spends in the system(W)?Determine the mean waiting time W for an M/M/2 system when lambda = 2 and μ = 1.2. Compare this with the mean waiting time in an M/M/1 system whose arrival rate is lambda = 1 and service rate is μ = 1.2. Since the arrival rate per server is the same in both cases and service times don’t vary, should the wait times be the same in both cases?According to the Bureau of Transportation Statistics, on-time performance by the airlines is described as follows: Action % of Time On time 70.8 National Aviation System delay 8.2 Aircraft arriving late 9.0 Other (because of weather and other conditions) 12.0 Records of 200 randomly selected flights for a major airline company showed that 125 planes were on time; 40 were delayed because of weather, 10 because of a National Aviation System delay, and the rest because of arriving late. At α = 0.05, do these results differ from the government’s statistics?