horses in a large stable have a mean weight of 1354 lbs, and a variance of 9604. What is the probability that the mean weight of the sample of horses would be less than 1364 lbs if 43 horses are sampled at random from t

Q: The mean weight of an adult is 76 kilograms with a variance of 100. If 142 adults are randomly…

A: Given  Mean=mu=76 Variance=sigma^2=100 Standard deviation=sigma=10 n=142

Q: A racing car consumes a mean of 103103 gallons of gas per race with a variance of 3636. If 3838…

A:

Q: Suppose it is believed that the probability a patient will recover from a disease following…

A:

Q: The probability of a defective product produced in a production process is 0.26. What is the…

A: From the provided information, The probability of a defective product produced in a production…

Q: the probability that a ball dropped from a certain height will strike the ground is 80 percent and…

A: Given: Number of trials or balls (n) = 12 Probability of success  here (p) = 0.80 Let X ~ Bin(12,…

Q: The center for Disease Control and Prevention reported in 2012 that 1 in 88 people had been…

A: Given that  The center for disease control and prevention reported in 2012 that  1 in 88 people had…

Q: The mean height of 15-year-old boys (in cm) is 175 and the variance is 64. For girls, the mean is…

A: Given, Mean height of boys is 175 and variance is 64 Mean height of girls is 165 and variance is 64…

Q: Let X be a binomial random variable that is binomially distributed with a mean of 9 and a variance…

A: binomially distributed with a mean of 9 and a variance of 6. Find q =?

Q: two independent random samples of size n1 = n2 = 8 come from normal populations with the same…

A: Given: Sample size n1 = n2 = 8 Ps12 ≥  7s22 needs to be calculated.

Q: In a recently conducted survey, workers reported driving an average of 36 miles one way on their…

A: Given Population mean = 36miles Population standard deviation =5

Q: Find the variance of the random variable x ?

A:

Q: The mean lifetime of a tire is 3737 months with a variance of 8181.   If 149149 tires are sampled,…

A: Note Thanks for your question. For the calculation, we consider question as, mean lifetime of a tire…

Q: Suppose that 90% of Narnians are children, that Narnian children have normally distributed BMIs with…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Among 110 Grade 9 students at a public high school, only 25 are athletes. if 10 of the students are…

A: The sample of the number of students is n=10. The probability of 25 students are athlete,…

Q: Experience has shown that a grade in MAT 2371 is normally distributed with mean 66 and variance 64…

A:

Q: a batch of rods produced at a plant have a mean length of 151 mm, and a variance of 64. If 116 rods…

A: Z= x¯-μσ/n~ N(0,1)

Q: The mean height of 15-year-old boys is 175 cm and the variance is 64. For girls, the mean is 165 and…

A:

Q: The mean weight of an adult is 62 kilograms with a variance of 144. If 195 adults are randomly…

A:

Q: The head of maintenance at XYZ Rent-A-Car believes that the mean number of miles between services is…

A: Given The population mean  =  3639 Variance                       =  145161 sample size n…

Q: furnace bills are normally distributed.  With a mean of 273 and an SD of 30.  If 144 bills are…

A: Let M denote the mean of sample of n = 144 bills. Then M follows N(mean = 273, SD = 30/√(144) = 2.5)…

Q: Suppose that 1 in 1,000 doctors make an incorrect diagnosis of a patient’s illness. If 10,000…

A: It is given that 1 in 1000 doctors make an incorrect diagnosis of a patient’s illness. Therefore,…

Q: The head of maintenance at XYZ Rent-A-Car believes that the mean number of miles between services is…

A:

Q: A racing car consumes a mean of 103103 gallons of gas per race with a variance of 3636. If 3838…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: Suppose that we have disjoint normal populations A and B with equal population variances. Suppose we…

A: From the given information, n1=6 n2=12 σ1=σ2=14 pooled variance: spooled2=(n1-1)σ12+(n2-1)σ22n1+n2-2…

Q: In a normally distributed population with a mean of 50 and a variance of 64, luck samples of n = 9…

A: It is an important part of statistics. It is widely used.

Q: Each value in a sample has been transformed by multiplying by 3 and then adding 10. If the original…

A: Given information: The variance of the original sample is 4. Each value in a sample has been…

Q: The quality control manager at a computer manufacturing company believes that the mean life of a…

A: The quality control manager at a computer manufacturing company believes that the mean life of a…

Q: n a normally distributed population with a mean of 50 and a variance of 64, luck samples of n = 9…

A: It is an important part of statistics. It is widely used.

Q: Suppose that in a sample of 30 patients, the variance of a randomly selected person having a genetic…

A: From the provided information, Sample size (n) = 30 Variance (σ2) = np (1-p) = 3.7

Q: In an art school, the time it takes for students to paint a dessin painting is normally distributed…

A:

Q: Suppose X is a random variable with a mean of 10 and a variance of 100. suppose Y is a random…

A:

Q: Suppose the horses in a large stable have a mean weight of 807 lbs, and a variance of 5776. What is…

A: Assume,  x denotes the sample mean weight of horses (in lbs). μ denotes the population mean weight…

Q: Suppose babies born in a large hospital have a mean weight of 4090 grams, and a variance of 313,600.…

A: Central limit theorem As per the Central limit theorem, the sampling distribution of sample mean…

Q: A geologist is making guesses about the mean length of fossil teeth of a certain species found in a…

A: From the provided information,

Q: Suppose a batch of metal shafts produced in a manufacturing company have a variance of 7.847.84 and…

A:

Q: The lifetime of a light bulb is normally distributed with the mean 3000 hours and a variance of 1392…

A: We have given that,  The lifetime of a light bulb are normally distributed with mean (Mu) = 3000…

Q: Suppose babies born in a large hospital have a mean weight of 3685grams, and a variance of 330,625.…

A: Given: μ=3685σ2=330625

Q: The mean points obtained in an aptitude examination is 188188 points with a variance of 361361.…

A: Answer - The mean points obtained in an aptitude examination is  μ = 188 points                with…

Q: The quality control manager at a company manufacturing company believes that the mean life of a…

A: The mean is 81 and the variance is 64. The standard deviation is square root(variance)=sqrt(64)=8.

Q: Suppose a batch of metal shafts produced in a manufacturing company have a variance of 9 and a mean…

A: The standard normal variate is calculated using the sample mean, population mean, population…

Q: The mean output of a certain type of amplifier is 352352 watts with a variance of 121121. If 5757…

A: Given problem is : The mean output of a certain type of amplifier is 352 watts with a variance of…

Q: The heights of grade 11 students are normally distributed with an average height of grade 11…

A: Let a random variable X denote the height of 11 grade students. Then, X~Nμ, σ2, where, μ=167 and…

Q: (b) Suppose that the test for equal variances in (a) concludes that the two populations have…

A: Hypothesis testing is an inferential procedure in statistics.

Q: Suppose that a random variable X is normally distributed with a mean of 200 and a variance of 625.…

A: Given that X follows a normal distribution with mean=200 and variance= 625 So standard…

Q: Suppose it is believed that the probability a patient will recover from a disease following…

A: Given that the probability a patient will recover from a disease following medication is 0.8.…

Q: Suppose that 90% of Narnians are children, that Narnian children have normally distributed BMIs with…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: The mean per capita consumption of milk per year is 131 liters with a variance of 841. If a sample…

A: We have to find out given probability..

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.