Given the random variable X~Bin(20, o.4), what is the standard deviation of X?
Q: (a) Find the z-score corresponding to 29 percent of fat calories, rounded to 3 decimal places. (b)…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: According to a random sample taken at 12 A.M., body temperatures of healthy adults have a…
A: Given body temperature of healthy adults have a bell shaped curve with mean 98.17oF and standard…
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Q: If X~Bin(98, 0.06), what is the variance of (30X+3)? O a. None of the answers. O b. = 5.53 O c. =…
A: Given X~Bin(n=98, p=0.06) Result: Var(X)=np(1-p) Var(aX+b)=a2V(X)
Q: Suppose that you take a random sample of 30 healthy American men... What is the z-score…
A: The mean is 82 and the standard deviation is 10.
Q: A population has a mean of 300 and a standard deviation of 90. Suppose a sample of size 125 is…
A: Obtain the probability that the sample mean will be within +/– 6 of the population mean. The…
Q: According to a random sample taken at 12 A.M., body temperatures of healthy adults have a…
A: From the provided information, Using the Chebyshev’s Inequality,
Q: A population has a standard deviation of 34. We take a random sample of size 30 from this…
A: Given: Population standard deviation σ = 34 Sample size n = 30
Q: AT scores in one state is normally distributed with a mean of 1587 and a standard deviation of 176.…
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Q: SAT scores in one state is normally distributed with a mean of 1523 and a standard deviation of 184.…
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Q: The temperature at any random location in a kiln used in the manufacture of bricks is normally…
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Q: The manager at a local movie theatre has collected data for a long period of time and has concluded…
A: For a continuous distribution, the probability between an interval equals to the area under the…
Q: From a sample with n=24, the mean number of televisions per household is 4 with a standard…
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Q: The birth weight of male babies in Poland is normally distributed with a mean of 3,603 grams and a…
A: We have given that, Male babies is normally distributed with mean (mu) = 3603 and standard…
Q: You have measured the 35 apartments in your SRS and determined the average of them to be 1072 square…
A: Given that: Sample size, n=35 Sample mean, x¯=1072 Population standard deviation, σ=50
Q: mean equal to 800MPA and a standard deviation of 40 MPa before it reaches yielding. Find the…
A: Random variable: A random variable X is a real number that describes the outcome of the random…
Q: If X~ Bin(98, 0.06), what is the variance of (30X+3)? a. None of the answers. O b. = 4974.48 c. =…
A: It is given that the random variable X follows Binomial distribution i.e, X ~ Bin( 98, 0.06 ) Here,…
Q: A large group of students took a test in mathematics and the final grades have a mean of 70 and…
A: Mean = 70, Standard Deviation = 10. The grades can be approximated to normal distribution. For…
Q: Females have pulse rates that are normally distributed with a mean of μ=76.0 beats per minute and a…
A: Let X be a continuous random variable of pulse rates of females (beats per minute) is normally…
Q: The sales of Adidas have been fluctuating over the few years. When put on analysis, it showed a bell…
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Q: Toyota and Honda produce cars of different quality and want to know the difference in the quality of…
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Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…
A: We have given that Mean=120.2, Standard deviation=2.1
Q: Statistics calculated from a sample of 17 observations are: Provide the following, rounding your…
A: Since you have posted multiple questions, we will provide the solution only to the first question as…
Q: he mean weight of a breed of yearling cattle is 1123 pounds. Suppose that weights of all such…
A: Normal distribution in the center is generally denser and basically less dense at the tails. There…
Q: The scores on a test for children in an eighth grade class is normally distributed with a mean of 70…
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Q: A random variable is normally distributed with mean 14.2 and standard deviation 18.4. What value is…
A: According to the provided information, mean μ=14.2standard deviation σ=18.4z-score = 3
Q: Ha gave the SAT math test to a simple random sample of 500 seniors from Texas and a population…
A: Solution: From the given information, z=2.46 and P-value=0.0069.
Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…
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Q: Suppose the amount of cosmic radiation a person is exposed to when flying across the country is a…
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Q: Suppose that the distribution for total amounts spent by students vacationing for a week in Florida…
A: Answer:- Given X ~ N(μ, σ ) Where mean μ = 650 & standard…
Q: Assume that for the population of MBA (Supply Chain Management), the average starting salary is PKR…
A: From the provided information, Mean (µ) = PKR 72,000/- Standard deviation (σ) = PKR 20,000/-
Q: Weights of women are normally distributed with a mean of 143 lb and a standard deviation of 29 Ib.…
A: a. Since the original data (weights of women) is normally distributed, hence the individual…
Q: A population has a standard deviation of 34. We take a random sample of size 30 from this…
A: "Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…
Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…
A: 1. Consider a random variable X, that defines the length of the steel rods.
Q: The weights of cans of Ocean brand tuna are supposed to have a net weight of 6 ounces. The…
A: Given Mean =5.97 Standard deviation=0.23 n=42
Q: a) What is the standard deviation of the time spent with a patient? b) What is the likelihood that…
A: The standard deviation of the time spent with a patient can be calculated as: Thus, the standard…
Q: The temperature at any random location in a kiln used in the manufacture of bricks is normally…
A:
Q: 10) LATTC female student's weights are approximately normally distributed with mean 168.4 lb and…
A: Mean(μ)=168.4 Standard deviation(σ)=26 Sample size(n)=23
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- A population has a mean of 300 and a standard deviation of 90. Suppose a sample of size 100 is selected and is used to estimate . Use z-table. What is the probability that the sample mean will be within +/- 8 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.) What is the probability that the sample mean will be within +/- 13 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.)A particular fruit's weights are normally distributed, with a mean of 462 grams and a standard deviation of 22 grams.If you pick 23 fruit at random, what is the probability that their mean weight will be between 446 grams and 477 gramsRound to 4 decimal places, as needed.The life expectancy of poople in Oman is if the mean distributed. maly years and 6) years nor and standeard'deviation is (106) respectively, Find the probability that the life expectancy is between (104) and (76) gears
-  Suppose that in the population of all healthy humans, body temperature follows a normal distribution with mean 98.2 and standard deviation of 0.5. Suppose a random sample of 20 healthy humans is taken. Which sample mean body temperature would be higher than 40% of all sample me and Body temperatures?Assume that the length of time between charges of a particular cell phone is normally distributed with a mean of 32 hours and a standard deviation of 3 hours. Find the probability that the cell phone will last between 28 and 38 hours between charges. SHOW YOUR WORK Paragraph BIU A + v ... !!! liliThere is a sample with 64 variables X1, X2.. X64 and each X has a mean μ= 70 and standard deviation, σ = 20. a) What is the probability that sample mean lies between 50 and 90?b) What is probability that sample mean more than 60?
- which of these statements are trueSAT scores in one state is normally distributed with a mean of 1487 and a standard deviation of 104. Suppose we randomly pick 59 SAT scores from that state. a) Find the probability that one of the scores in the sample is greater than 1480.population has a mean of 200 and a standard deviation of 50. Suppose a simple random sample of size 100 is selected and is used to estimate u. a. What is the probability that the sample mean will be within 25 of the population mean? b. What is the probability that the sample mean will be within@10 of the population mean? L(Ctrl) -
- The time necessary to complete the technical interview for the Google intership is normally distributed with a mean of sixty-three minutes, and a standard deviation of twelve minutes. Let the random variable X represent the number of minutes a randomly chosen student takes to complete the assessment. If a sample of three dozen students is taken, what is the standard deviation of the sample mean σX¯ and what is the probability that the sample mean would be 59 minutes or fewer?A population has a mean of 200 and a standard deviation of 50. Suppose a sample of size 100 is selected and is used to estimate . Use z-table. What is the probability that the sample mean will be within +/- 4 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.) What is the probability that the sample mean will be within +/- 11 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.)On final examination, the mean was 72 and the standard deviation was 15. 1)Determine the standard scores (z-values) of students receiving the grade of 65. 2) Students receiving the grade of 85 3) Probability that a student will score greater than 75 4) Probability that a student will score lower than 65 5) Find the corresponding standard score of -0.50 and corresponding score of 1.