For a population mean of 35, a sample was taken with a mean value of 40 and sample size equal to 30. The population standard deviation is 20. What is probability of average value greater than 40?"     0.9131     0.718     0.0869     None of the above

Q: At another park, at a random selected time, there were 80 individuals having a picnic. It was found…

A: From the provided information, Sample size (n) = 80 40% of them were fully vaccinated that is p =…

Q: Find the sample variance of 2, 5, 7 , 13 by using the definition of sample variance; that is,without…

A: Given Data: 2, 5, 6, 13   Mean: Mean=2+5+6+134=6.5

Q: What is the probability that V value is greater than or equal to 11.14 when sample variance V is…

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Q: The independent observation assumption would be violated if

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Q: Suppose that you want to perform a hypothesis test based on a simple random paired sample to compare…

A: a)Requirements for a paired t-test:The samples must be paired sample and drawn randomly from…

Q: A sample of 6400 cases is drawn at random from a large population. The Variance is 100. Calculate…

A: Sample size, n = 6400 Variance = 100 Standard deviation = VarianceStandard deviation = 100Standard…

Q: 1. A production line is producing electrical components. Under normal conditions 2.4% of the…

A: Hypothesis testing: It is the statistical procedure to accept or reject the statistical hypothesis…

Q: uppose the sediment density (g/cm) of a randomly selected specimen from a certain region in South…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: wo accounting professors decided to compare the variance of their grading procedures. To accomplish…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 2. A brand of powdered milk is adve consumer obtained the net weight of 10 randomly selected cans.…

A: Solution: n= 10 Sample size  x =∑xn=248210=248.2 Sample mean s =∑(x-x)2n-1s =191.69s =4.6140  Sample…

Q: A fair die was rolled five times, then what are its population mean, population variance, and…

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Q: A study was done on body temperatures of men and women. The results are shown in the table. Assume…

A: Given: n1=11n2=59s1=0.89s2=0.63x¯1=97.76x¯2=97.32σ=0.01

Q: Taxi has found that the response time (in minutes) for a pickup is normally distributed with mean µ…

A: Given: Population Mean (\mu)(μ) = 12 Population Standard Deviation (\sigma)(σ) = 2.1

Q: 9. If the random variable X is distributed through the Normal distribution with mean =µ and unknown…

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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: A random sample of size n = 178 is taken from a population of size N = 3,718 with mean μ = −80 and…

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Q: hich is unknown to us, so we use the sample variance to estimate the standard error for our…

A: As given, n1: The sample size of blood pressure of African zebras. = 5 n2:  The sample size of blood…

Q: 4) The strength limit of a specific type of a cable is random variable with mean value of 1500 kg…

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Q: Suppose the variance of house selling prices in both Calgary and Edmonton are known. We are…

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Q: Suppose that a random sample of size 64 is to be selected from a population with mean 30 and…

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Q: An experimental work to measure the strength of a particular steel was conducted. It was found that…

A: Given: μ=70σ2=9σ=σ2σ=3

Q: When a production line is properly adjusted, it is found that 4% of the mechanical components…

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Q: 8. What is P(Z > 2.22)? 12. What is the probability of the random occurrence of a value greater…

A: 8. P (z > 2.22) = 1 - P (z < 2.22) Using z tables  P( z < 2.22) = 0.98679  Therefore, P (z…

Q: We are running a hypothesis test to see if weight of African zebras differs significantly from that…

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Q: 5. If the random variable X is distributed through the Normal distribution with mean = µ and unknown…

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Q: A fair die was rolled five times, then what are its population mean, population variance, and…

A: The population mean is calculated using the formula x¯=∑xn The population variance is calculated…

Q: 1.The salaries of the employees in a company follow the normal distribution with mean $16000 and…

A: Note: " Since you have posted many sub-parts. we will solve the first three sub-parts of part (1)…

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Q: What is the mean for a normally-distributed binomial distribution with q = 0.4 and 100 trials.

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Q: 3. Suppose that the result of the third quarter Exam of MSU-SHS is normally distributed has mean of…

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Q: If the variance in the weights of one sample of 12 oz. cookies is 3 oz. and the variance in a second…

A: Given: σ12=3,σ22=1,n1=9,n2=9

Q: A random sample of size 225 is taken from a population with a mean of 10 and variance 4. Find the…

A: Given n=225 Mean=10 Variance=4

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Q: We draw a random sample of size 36 from a population with standard deviation 3.5. If the sample mean…

A: n = 36 s = 3.5 xbar = 27

Q: A random sample of size n = 178 is taken from a population of size N = 3,718 with mean μ = −80 and…

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Q: Suppose a sample 30 observations is drawn from a population with variance population with variance…

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Q: A random sample of size n= 28 is obtained from a normally distributed popula mean ofu = 350 and a…

A: Given that,       n=28       μ=350       σ2=145 we have to find (i) P(x¯<345) (ii) P(s2<140)…

Q: 1.idea or explanation for something that is based on known facts but has not yet been proven…

A: Hypothesis Testing: In this method, the researcher tests whether the assumption made in reference to…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.