population has a mean of 350 and a standard deviation of 25, determine the probability that a random sample of 40 will have a mean between 335 and 375.
Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…
A: From the provided information,Mean (µ) = 162000Standard deviation (σ) = 36000Sample size (n) = 58
Q: A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be…
A:
Q: What
A: Explanation and solutions is given below....
Q: a typical adult has an average IQ score of 105 with a standard deviation of 20. If 19 randomly…
A:
Q: Assume that the blood pressure data is normally distributed with a mean of 70.2 and a standard…
A: The variable x¯ is defined as the mean blood pressure levels. The sample size is 16, mean is 70.2,…
Q: According to the Department of Education, 60% of college students enjoy taking Statistics. Suppose…
A: Let X be the number of students who enjoy taking Statistics in a sample of 200. Given n = 200…
Q: During a wisdom teeth removal procedure, 1, 2, 3, or 4 wisdom teeth are removed, depending on the…
A:
Q: You may need to use the appropriate appendix table or technology to answer this question. A…
A:
Q: Given the mean is 120 minutes and the standard deviation is 30 minutes. What is the probability that…
A: The mean is 120 minutes and standard deviation is 30 minutes.
Q: Assume that blood pressure readings are normally distributed with a mean of 122 and a standard…
A: Let "M" be the mean blood pressure readings.
Q: Assume that 26% of students at a university wear glasses. Suppose 300 students are randomly…
A:
Q: You run a factory that produces widgets (no, you'll never escape the widgets). Widget diameters are…
A: GivenMean(μ)=122standard deviation(σ)=10sample size(n)=16
Q: Assume that blood pressure readings are normally distributed with a mean of 123 and a population…
A: Solution: Let X be the blood pressure reading. From the given information, X follows normal…
Q: Let X = { 1,2,6,9,11}. Find the mean and standard deviation given that X is a sample. %3!
A: The mean for the sample is calculated as follows:
Q: Assume that newborn girls have birth weights with a mean of 3023 grams and a standard deviation of…
A: Mean(μ)=3023 standard deviation(σ)=714 Sample size(n)=100
Q: Assume that the salaries of elementary school teachers are normally distributed with a mean $35,000…
A:
Q: You want to determine the probability that when seven consumers are randomly selected, exactly two…
A: 1. n = 7, x = 2, p = 0.45, q = 0.552. Mean, μ = 3.15 Standard Deviation, σ = 1.31623. P(X = 2) =…
Q: High school girls average 80 text messages daily. Assume the population standard deviation is 15…
A: Given information:
Q: Assume that blood pressure readings are normally distributed with a mean of 135 and a standard…
A: According to the given information, we have Mean = 135 Standard deviation = 4.7 Sample size = 35
Q: Assume that blood pressure readings are normally distributed with a mean of 123 and a standard…
A:
Q: Suppose a population has a mean happiness score of 75 and a standard deviation of 15. Researcher A…
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Q: About 78% of all female heart transplant patients will survive for at least 3 years. Ninety…
A: From the given information, the sample size is 90 and the proportion is 78%. The mean of the sample…
Q: A leading magazine reported at one time that the average number of weeks an individual is unemployed…
A: We have given that X~N(mu,sigma ^2) mu=29 ,sigma =3.5 Z-socre =(x-mu)/sigma
Q: A final exam in science 160 has a mean of 73 with a standard deviation of 7.8. If 25 students are…
A: Given information- Population mean, µ = 73 Population standard deviation, σ = 7.8 Sample size, n =…
Q: A final exam in Science 150 has a mean of 80 with a standard deviation of 8. If 25 students are…
A: Given: μ = 80 σ = 8 n = 25
Q: The probability that a radish seed will germinate is 0.7. A gardener plants seeds in batches of 16.…
A: Given that Number of trials n=16 Success of probability p=0.7 q=1-p=1-0.7=0.3
Q: A normal population had a mean of 70 and a standard deviation of 12. You select a random sample of…
A: μ = 70σ = 12n = 9P(x¯>73) = ?
Q: Use a formula to find the standard deviation of the sample 1, 4, 5, 6.
A: We have given that, The data set of the sample is, 1, 4, 5, 6 Then, We will find the standard…
Q: normal population had a mean of 70 and a standard deviation of 12. You select a random sample of 9.…
A: given data normal distributionμ = 70σ = 12n = 9 P(x¯<66) = ?
Q: The census bureau reported that the mean household income in Hayward in 2019 was $86,744 with a…
A: Given that, n=150,x¯=89396μ=86744σ=18700 The mean and standard deviation of the sampling…
Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 100 and a…
A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 15
If a population has a
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- Suppose that heights of women in Utah are normally distributed with a mean of 74 inches and a standard deviation of 3.4 inches. Find the probability that a randomly chosen woman is between 62 and 68 inches tall. Find the probability that a randomly chosen woman is taller than 80 inches tall. Find the 95th percentile. inchesDuring a wisdom teeth removal procedure, 1, 2, 3, or 4 wisdom teeth are removed, depending on the patient's needs. Records indicate that nationwide, the mean number of wisdom teeth removed in a procedure is µ = 2.38, with a standard deviation of o = 0.93. Suppose that we will take a random sample of 8 wisdom teeth removal procedures and record the number of wisdom teeth removed in each procedure. Let x represent the sample mean of the 8 procedures. Consider the sampling distribution of the sample mean x. Complete the following. Do not round any intermediate computations. Write your answers with two decimal places, rounding if needed. (a) Find - (the mean of the sampling distribution of the sample mean). -0 ? (b) Find o, (the standard deviation of the sampling distribution of the sample mean). G- - ?The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances that someone is earning more than $20 an hour?
- Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have BLUE eyes. Three randomly selected Americans are selected and examined for eye color. If you let success correspond to an American having BLUE eyes, calculate the following. Calculate the standard deviation.The average amount customer spend yearly at a local grocery store is $635.55 .  Assume the variable is normally distributed.  If the standard deviation is $94.41 find the probability that a randomly selected  customer spends between $569.46 and $758.28 According to government data the probability that an adult was never in a museum is 11%, in a random survey of 20 adults what is the mean and standard deviation of the number that were never in a museum
- Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a standard deviation o = 15. Find the probability that a randomly selected adult has an IQ between 84 and 116. Click to view page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected adult has an IQ between 84 and 116 is (Type an integer or decimal rounded to four decimal places as needed.)Assume that a nomral distribution has a mean of 22 and a standard deviation of 7. What percentage of the values are in the distribution do we expect to fall between 15 and 22?Suppose the average amount of money that people spend on their pets per month is 47 dollars, with a standard deviation of 6 dollars. For a sample of 36 people, final the average amount of money spent on pets that defines the bottom 30% in the distribution.For a sample of 36 people, what is the probability for this sample’s mean to be higher than 50 dollars.
- According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the standard deviation is 3 inches. If Zsike is 67 inches tall, what is her z-score?60% of all the students passed an exam. If a random sample of 10 students is selected, What is the mean and the standard deviation ?The life of light bulbs is distributed normally. The standard deviation of the lifetime is 30 hours and the mean lifetime of a bulb is 525 hours. Find the probability of a bulb lating for between 538 and 545 hours. Round to four decimals
