a person threw 10 dice 500 times and obtained 2560 times 4,5or 6.can this be attributed to fluctuations in sampling?
Q: Suppose you tossed a fair die times and the results are as follows: 1 = 95, 2 = 72, 3 = 103 105, 5 =…
A: We have, n=600. As a fair die is rolled, then the probability of each outcome (p) is 1/6. First we…
Q: One researcher collected a sample of expenses for advertisement from 5 companies as follows: 50, 60,…
A: The sample mean is, x¯=∑xn=50+60+55+58+725=2955=59 The sample mean is 59.
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A: Given information: The sample size, n=30.
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Q: Suppose a random sample of n = 270 teenagers 13 to 17 years of age was asked if they use social…
A: n=270X=195... Stated that they do use social media
Q: 33% of the Population has 20/20 vision if 70 individuals are selected at random from the Population…
A: Sample size : n = 70P(20/20 vision) : p = 0.33x = Number of people with 20/250 visionMean of X : =…
Q: 5. A student plans to go sledding on the first snow day in December. The chance of snow on any given…
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A: Solution: To test the hypothesis ' Ho: Median difference is zero Vs Ha: Median difference is…
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A: Introduction: The formula for the binomial distribution formula: P(x)=nxpxq(n-x)
Q: When I am taking a Simple Random Sample, what do I do if say I take 23 samples from a range of 93…
A: The random number table is used to obtain the sample random sample which provides each member of the…
Q: Suppose a random sample of n=270 teenagers 13 to 17 years of age was asked if they use social media.…
A: It is given that 270 teenagers 13 to 17 years of age was asked if they use social media in which 204…
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Q: A rowing team consists of five rowers who weigh 152, 159, 162, 150 and 156 pounds. Find all possible…
A: The formula for combination is nCr = n! / [r! (n – r)!] = [n (n – 1) … (n – r + 1)]/r!. Explanation:…
Q: researcher claims that not more than 65% officers in the public offices come on time in their…
A: From the provided information, Sample size (n) = 65 From which 45 officers were in time that is x =…
Q: When dragons on planet Dathomir lay eggs, the eggs are either green or yellow. The biologists have…
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Q: How many different simple random samples of size 4 can be obtained from a population whose size is…
A: The following information has been provided: The total number of elements are n=10. The sample size…
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Q: Suppose Marcella wants to compare music listening time among college students on weekdays versus…
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A: The binomial dist. is a discrete prob. dist.
Q: Suppose that in a large class, the instructor announces that the average grade on an exam is 75.…
A: According to the definition of estimation, a sample mean is equal to the population mean.
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Q: Help Curvey two different groups of at least 10 people each. It has to be a quantitave type of…
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Q: suppose that 20% of the fields in a given agricultural area are infested with the sweet potato…
A: It is given that P( infested with whitefly ), p = 20% = 0.20 Sample size, n = 270 Here, probability…
Q: 2. A biased die is thrown fifteen times and the number of threes seen is four. If the die is thrown…
A: The biased die is thrown 15 times and the number of threes seen is 4. Therefore the mean is np=4…
Q: researcher claims that not more than 65% officers in the public offices come on time in their…
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Q: A statistical study is made to compare the % of smokers in small rural towns to the overall smoking…
A: Given Information:n=1500x=285c=95%=0.95
Q: 4. A sample mean has a z= +1.0 on the sampling distribution created from the population of…
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Q: A box contains 5 balls. One is numbered 3, two are numbered 4, and two are numbered 5. The balls are…
A: Given: A box contains 5 balls. One is numbered 3, two are numbered 4, and two are numbered 5. The…
Q: Suppose data X1, ..., Xn are sampled from the population, sample mean is a random variable
A: It is given that Sample : x1, x2,......,xn
Q: In nine throws of a die, number 5 is considered a success. Find the mean number of successes and…
A: Answer: From the given data, Number of throws (n) = 9 Here, the probability of success is getting…
Q: For a sample of 9 with a mean of 5994. How would i find the EX?
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Q: Employers want to know which days of the week employees are absent in a five- day work week. Most…
A: The question is about categorical data analysis.Given :To find :Test that the highest no. of…
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Q: Find the sample proportion of teenagers 13 to 17 years of age who use social media The sample…
A: It is given that Favourable cases(use social media), X = 158Sample size, n = 200
Q: Suppose that 46% of politicians are lawyers. If a simple random sample of 681 politicians is…
A: Answer Given The sample size [n] =681p=46%sample proportion =43%
Q: Suppose that Max is a climate change scientist and butterfly enthusiast. In Max's locale, the mean…
A: The distribution is normal and the population standard deviation is unknown so the t distribution…
Q: You observe a sample of five numbers between 0 and 10. Their median is 5 and their mean is 5. What…
A: The numbers are between 0 to 10. The mean is the ratio of the sum of all observations to the total…
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Q: One cable company claims that it has excellent customer service in fact, the company advertises that…
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Q: When dragons on planet Dathomir lay eggs, the eggs are either green or yellow. The biologists have…
A: The possible outcomes is 2. They area green egg and yellow egg.The probability of each outcome is…
Q: What is the sampling distribution of x?
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Q: When 2 births are randomly selected, the sample space for genders is bb, bg, gb and gg. Assume that…
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- A random sample is one on which theWhat proportion of the distribution of sample means is greater than a z of -1Formulate a dataset using the frequency distribution table of the random experiment for the number of boys in a committee of 3 people selected at random from 4 boys and 3 girls. Random variable or dataset indicates the number of boys.
- One sample has n=7 and SS=35 and a second sample has n =17 and SS =45. What is the pooled variance for these two samples?Mensa requies a test score to be in the top 2%. The test has a mean of 100 and Std. Dev. of 15.and scores are normally distributed. If 4 subjects take the test and they have a mean of 132 but the individual scores are lost, can we conclude that all 4 of them are eligible for Mensa?An employee at the metropolitan museum of art surveyed a random sample of 150 visitors to the museum of those visitors 45 people bought food at the cafeteria based on those results how many people out of 1750 visitors to the museum would be expected to buy food from the cafeteria?
- Consider a random sample of 300 students in a university, 75 of them declared that they like playing football. Compute a point estimate of the proportion of all students who would like to play football.A box contains 8 balls. One is numbered 2, two are numbered 3, one is numbered 4, and four are numbered 5. The balls are mixed and one is selected at random. After a ball is selected, its number is recorded. Then it is replaced. If the experiment is repeated many times, find the variance of the numbers on the balls. (Round off your final answer to 2 decimal places).Compute the mean weight of a sample of seven chickens selected at random from a large poultry. the chickens weigh: 8,12,9,11.5,8.5,9.5,10( pounds)