Suppose the commuting time from north bay to Barrie varies uniformly from 135 min to 180min what is the probability that the drive will take less than 160 min
Q: the problem is the type2 error's probability less than 0.1
A: The null and alternate hypotheses areH0:μ=15H1:μ≠15 True mean is μ=14.5 The probability of…
Q: From past results, a professor knows that the test scores are normally distribution with a mean 78…
A:
Q: 1) Suppose that the expected number of accidents occurring on a highway each day = 2. (a) What is…
A: Poisson Distribution: A discrete random variable X is said to be Poisson distribution and the…
Q: The length of time that a student takes to complete her homework is uniformly distributed between 3…
A:
Q: Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard…
A:
Q: Serial correlation, also known as autocorrelation, describes the extent to which the result in one…
A: a) To construct a serial correlation , we use data pairs (x, y) Here , X : original data & y :…
Q: en the current Center of Disease Analytics statistics, the probability of having the flu in our area…
A: event A= having flup(having the flu in our area)=0.10p(A)=0.10P(A')=1-0.10=0.90event B=report…
Q: probability that more than 60% of 34 r/s students from this university pass all their classes.
A: Here sampling distribution of the sample proportion is approximately normal as per central limit…
Q: Problem : Assume that the Binomial conditions are met for the values of n and p. A fair die is…
A: Hi! Thank you for the question, as per the honor code, we are allowed to answer three sub-parts at a…
Q: The weights of steers in a herd are distributed normally. The variance is 10,000 and the mean steer…
A: Population mean=1400Population variance=10000Population standard deviation =√Variance=√10000=100
Q: It takes an average of 40 seconds to download a certain le, with a standard deviation of 5 seconds.…
A: Given data: The given mean time to download a file is: μ=40 sec. The given standard deviation…
Q: If we toss both fair five-sided dice simultaneously and denote Y as the summation of the two dice.…
A: Here the die is five-sided. It two dice are tossed simultaneously and the sum is noted. Y is the…
Q: It is known that the waiting time for a car to pass by on a country road is exponentially…
A:
Q: Based on historical data, on average, Florida experiences one flooding event every 2.4 months.…
A:
Q: hat is the value of t* if n = 20 and the probability is 0.95 to the left?
A: According to the central limit theorem, the sampling distribution of the sample scores follows the…
Q: 1. Suppose that 31% of adults have at least one tattoo. If you sample 90 random adults, what is the…
A: 1. From the given information the sample size is (n) = 90 A population is normally distributed is an…
Q: During a certain part of the day, the time between arrivals of automobiles at the tollgate on a…
A: Let X be a random variable following exponential distribution with parameter λ. The expected value…
Q: In testing for the differences between the means of two independent populations, you assume that the…
A: In testing for the differences between the meanings of two independent populations, we assume that…
Q: To construct a serial correlation, we simply use data pairs (x, y) where x = original buildup factor…
A:
Q: A particular brand, X, is known to have a market share of 35%. Suppose that in a survey, 2000 consum…
A: Givenp=0.35n=2000By using normal approximationMean(μ)=n×p=2000×0.35=700standard…
Q: A card is drawn at random from a standard deck of 52 cards. If a card is a face card, the player…
A: total number of cards in a standard deck = 52 number of face card in a standard deck = 12 A card is…
Q: A true-false exam has 48 questions and an answerer has to choose the correct alterna Matt has not…
A: Let X be the number of correct answer in the true false exam. n= 48 sample size of questions.
Q: The data mentioned in the question can be expressed as PB=0.25, PW=0.25, PS=0.50, PGB=0.40,…
A: Given, The data mentioned in the question can be expressed as P(B)=0.25, P(W)=0.25, P(S)=0.50,…
Q: The life of light bulbs is distributed normally. The variance of the lifetime is 225and the mean…
A: The probability of a bulb lasting for at most 540 hours is calculated below:
Q: The weights of steers in a herd are distributed normally. The variance is 90,000 and the mean steer…
A: Let X be the weights of steers in a herd are distributed normally. And σ2=90,000 and μ=1400 lbs i.e.…
Q: The variance of a probability distribution is its second moment about the mean. True or False
A: Given statement: The variance of a probability distribution is its second moment about the mean.
Q: Assume a researcher wants to know the probability of an individual's systolic blood pressure would…
A: Given,Z-score for 130 is 1.4
Q: Problem 10. Suppose the probability of a false positive result on a mammogram is 5% and that…
A: Let, P(F) = probabity of failure = probability of false positive result = 0.05…
Q: Serial correlation, also known as autocorrelation, describes the extent to which the result in one…
A: Given that; ∑x=48.6∑y=58.4∑x2=385.86∑y2=526.98∑xy=448.7 (a) The slope b is given by;…
Q: find the probability for the followign problems if x~ N(70,20) andn=16. A. P(Xmean>67)…
A: We have to find given probability..
Q: ppose that the number of miles that a car càn run before its tery wears out is exponentially…
A:
Q: the time X that a lightbulb can last (life lenght) is a distribution with mean 1 year and standard…
A: The probability that the average life length of the lightbulbs is greater than 1.02 years is 0.3446,…
Q: A market analyst studying the length of time shoppers spend in two types of grocery store observes a…
A: GivenSample size in each store n1=n2=75The mean time spend in Store A X__A=55The mean time spend in…
Q: Serial correlation, also known as autocorrelation, describes the extent to which the result in one…
A: Correlation, in the finance and investment industries, is a statistic that measures the degree to…
Q: A professor knows that her statistics students' final exam scores have a mean of 79 and a standard…
A:
Q: The mean GPa of university students is 2.3 with a SD of 1.2. If you were to draw 36 students at…
A:
Q: Serial correlation, also known as autocorrelation, describes the extent to which the result in one…
A:
Q: (a) To construct a serial correlation, we use data pairs (x, y) where x = original data and y =…
A: (a) Let x be the original data, y be the original data shifted ahead by one time period. The data…
Q: Question 3 A particular concentration of a chemical found in polluted water has been found to be…
A: Givenp=0.20n=20Let "x" be the number of fishes survivex~Binomial(n=20,p=0.20)P(X=x)=Cxn×px×(1-p)n-x…
Q: 1. Give a real-life example of data which could have the following probability distributions.…
A: b). Uniform distribution-: If the outcomes of all possible events are equally likely, is known as…
Suppose the commuting time from north bay to Barrie varies uniformly from 135 min to 180min
what is the probability that the drive will take less than 160 min
Step by step
Solved in 2 steps with 2 images
- The life of light bulbs is distributed normally. The variance of the lifetime is 900 and the mean lifetime of a bulb is 550 hours. Find the probability of a bulb lasting for at least 583 hours. Round your answer to four decimal placesFrom observations of the weather, it is known that on October 20 the probability of rain is 0.85. A certain forecast method for October 20 is correct 0.9 times if rain is predicted and 0.75 times if no rain is predicted. How much information does a real weather forecast provide 20 th of October?A recent survey of 1040 U.S. adults selected at random showed that 634 consider the occupation of firefighter to have very great prestige. Estimate the probability (to the nearest hundredth) that a U.S. adult selected at random thinks the occupation of firefighter has very great prestige.Step 1Recall that the probability of an event based on relative frequency uses the formulaprobability of event = relative frequency = fn,where f is the frequency of the event occurrence in a sample of n observations. A total of 1040 people were surveyed and 634 considered the occupation of firefighter to have very great prestige. Therefore, the sample size is n = . The event of interest is that a U.S. adult selected at random thinks the occupation of firefighter has very great prestige. Therefore, the frequency f is equal to the number of adults who the occupation of firefighter has very great prestige, so f = (0.6096 answer is incorrect.) .
- The NJ Department of Health has reported the average life span of NJ residents is 81 years. If the standard deviation is σ = 4 years, what is the probability of a person living to at least 92 years of age?From observations of the weather, it is known that on October 20 the probability of rain is 0.25. A certain forecast method for October 20 is correct 0.9 times if rain is predicted and 0.75 times if no rain is predicted. How much information does a real weather forecast provide 20 th of October?The probability that an adult male is over 6ft tall is 0.2. given that he is over 6ft tall, the probability that he weighs less than 150lbs is 0.2. Find the probability that a randomly chosen man is taller than 6ft and will weigh less than 150 lbs.
- According to the information that comes with a certain prescription drug, when taking this drug, there is a 25% chance of experiencing nausea (N) and a 40% chance of experiencing decreased sexual drive (D). The information also states that there is a 13% chance of experiencing both side effects. What is the probability of experiencing nausea or a decrease in sexual drive? Your answer should be rounded to 2 decimal places.Help me pleaseSerial correlation, also known as autocorrelation, describes the extent to which the result in one period of a time series is related to the result in the next period. A time series with high serial correlation is said to be very predictable from one period to the next. If the serial correlation is low (or near zero), the time series is considered to be much less predictable. For more information about serial correlation, see the book Ibbotson SBBI published by Morningstar. A research veterinarian at a major university has developed a new vaccine to protect horses from West Nile virus. An important question is: How predictable is the buildup of antibodies in the horse's blood after the vaccination is given? A large random sample of horses were given the vaccination. The average antibody buildup factor (as determined from blood samples) was measured each week after the vaccination for 8 weeks. Results are shown in the following time series. Original Time Series Week Buildup Factor 2 3 4…