Here is a population of scores: 10, 9, 7, 7, 7, 6, 6, 5, 5, 5 A) What is the proportion of X = 9?  B) What is the 90th percentile?

Q: are 10.2, 9.7, 10.1, 10.3, 10.1, 9.8. 9.9, 10.4, 10.3, and 9.8 liters. Use a 0.01 level of…

A:

Q: In order to get patients opinion about the services provided to them by a hospital, a sample of 500…

A: A systematic type of sampling is the sampling in which every kth member is selected to gather a…

Q: In a sample of 550 students, 80% prefer online resources versus printed materials. The standard…

A:

Q: In a study to estimate the proportion of smokers among the residents in a certain city and its…

A: To testH0:p1=p2H1:p1≠p2

Q: The following table includes the 9 possible combinations of choosing two numbers, with replacement,…

A: Given all sample combinations possible of size two drawn with replacement from a population having 3…

Q: Determine the test statistic and p-value for Ho: p = 0.5 versus H3: p # 0.5 wh 225 and the sample…

A: Given that  Null hypothesis (H0) : P=0.5 Alternative hypothesis (H1) : P≠0.5 Sample size (n) = 225…

Q: A researcher measures eye color for a sample of n-50 people. Which measure of central tendency would…

A: Here the characteristic which is to be measured is eye color, which is not a numerical value.

Q: Among 1815 randomly selected high school students surveyed by the Centers for Diseases Control, 300…

A: Given X=300 n=1815

Q: which statistic is equivalent to dividing the sum of scores equally across all members of a sample

A: The statistic measures the characteristics of samples to estimate the population.

Q: A recent survey found that 68.6% ofthe population own their homes. In a random sample of180 heads of…

A:

Q: A survey of 2390 musicians showed that 398 of them are left-handed. Find a point estimate for p, the…

A: We have find population left handed..

Q: Assume that blood pressure readings are normally distributed with u = 124 and o = 9. A researcher…

A: Consider X be the random variable representing the blood pressure readings. X follows normal…

Q: What proportion of 20% defective shipments will be accepted?

A: Given : N=50 , n=5 , p=0.20 , M=N*p=50*0.2=10 Here , X​​​​​​​Hypergeometric (n=5,N=50,M=10) The…

Q: A random sample of 250 undergraduate students from a large university was found to contain 67…

A:

Q: What is the sample proportion such that 95% of all others is symmetric around 36%?

A: 1. A sample of 200 students is taken in which 36% of all college students use an Apple i phone only.…

Q: In 1942 ​, an organization surveyed 1100   adults and​ asked, "Are you a total abstainer​ from, or…

A: The proportion of considered subjects, on which we are interested from a sample can be termed as…

Q: :5. If in a village actually involved by anthrax, 70 per cent of the goats are attacked and 85 pet…

A:

Q: It is thought that 12% of all students taking a particular course received a grade of A. In a sample…

A:

Q: Suppose 50% of all voters in a population support a politican, SHARE What is the zscore of sample…

A:

Q: In 2010, a survey was given to 822 teenagers, aged 13 to 17, randomly selected by the allup Poll.…

A: Solution: Given information: n= 822 Sample size p^=0.84 Sample proportionq^= 1-p^=0.16 Assume level…

Q: In how many ways can a statistician select a sample of 15 people from a population of 90 people?

A: Given,A statistician select a sample of 15 people from a population of 90 people.

Q: From a sample of 500 items, 30 were found to be defective. The point estimate of the population…

A: The point estimate of the population proportion is the sample proportion. The formula for point…

Q: Compute the sample proportion \hat pp^​ of voters who think the state of the economy is the most…

A: It is given that Sample size n = 2000 Number of voters who think the state of the economy is the…

Q: In a poll of 1000 randomly selected voters in a local election, 415 voters were against school bond…

A: #Ans -  Given,           In a poll of n = 1000 randomly selected voters in a local election, x = 415…

Q: Use the figure to the right, which shows the percentages of adults from several countries who favor…

A: Let p1 denotes the population proportion of adults in Country A who favor building new nuclear power…

Q: determine the standardized test statistic,z to test the claim about the population proportion…

A:

Q: A group of students need to submit a project and they need to survey people about their daily…

A: see the handwritten solution

Q: Suppose in a random sample of 152 individuals, 25 are considered success. Compute the sample…

A: Given data suppose in a random sample of 152 individuals  25 are considered success

Q: A researcher assesses eye color for a sample of n = 50 people. Which measure of central tendency…

A: Here, the researcher assesses eye color for a sample of 50 people.

Q: If 471 households were surveyed out of which 385 households have internet fiber cable, what is the…

A: Among 471 households 385 households have internet fiber cable, therefore 471-385 = 86 households…

Q: The weights of seven boxes of cereal are: {12 oz, 10 oz, 8 oz, 9 oz, 10 oz, 13 oz, and 15 oz}…

A:

Q: Only about 10% of all people can wiggle their ears. Is this percent different for millionaires? Of…

A: Here use single proportion z test Only about 10% of all people can wiggle their ears. Is this…

Q: ) 32 randomly picked people were asked if they rented or owned their own home, 8 said they rented.…

A: Given that, n=32 x=8 Point estimate (p)=?

Q: 1. What percentage of scores fell within ±1 SD for ZADHD?

A: By using Empirical rule, we can know that what percentage of data fall with in the number of…

Q: 4. Out of 450 randomly selected people in a soccer match, 225 of them were students. Compute the…

A: 450 people are selected randomly; n=450 225 of them were students; x=225

Q: In order to study the mean blood pressure of people in his town, Richard samples the population by…

A: We know that stratified sampling involves dividing the population into groups and randomly selecting…

Q: An automotive manufacturer wants to know the proportion of new car buyers who pref foreign cars over…

A: A sample of 897 cars; n=897 304 preferred domestic cars; x=304 α=0.05

Q: 29. How many distinguishable permutations are there for the letters of PERCENTILES taken all…

A: The objective is to find the distinguishable permutations for the letters of PERCENTILES taken…

Q: A poll found that 83% of people out of a survey of size 127 watch at least three hours of TV per…

A: Given: A poll found that 83% of people out of a survey of size 127 watch at least three hours of TV…

Q: In 1949, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

A: We have to find null and alternate hypothesis.

Q: A recent study showed that the cost of buying a typical shopping basket of 40 food items for…

A: Given data is 8100,6600,6150,5100,4900Arrange the data in ascending…

Q: The results of the total test scores of 60 test takers as new employees of hardware companies are as…

A: Solution-: We find the given data is population or sample?

Q: Suppose in a random sample of 61 individuals, 28 are considered success. Compute the sample…

A: Given x=28 n=61

Q: A poll found that 71% of people out of a survey of size 130 watch at least three hours of TV per…

A: From the given information,   A poll found that 71% of people out of a survey of size 130 watch at…

Q: suppose you select a simple random sample of 75 douglas college student and you find that 8 are left…

A: It is given that the sample size n is 75 and x is 8.

Q: Assume that blood pressure readings are normally distributed with μ= 124 and σ= 9. A researcher…

A: Given that  Blood pressure readings are normally distributed with Mean (μ) = 124 Standard deviation…

Q: In a statistics class, 10 scores were randomly selected, and the following results were obtained:…

A: From the provided information, The data values are 74, 73, 77, 77, 71, 68, 65, 77, 67, 66 Sample…

Q: Suppose in a random sample of 81 individuals, 35 are considered success. Compute the sample…

A: Given x=35 n=81

Q: Suppose 420 randomly selected people are surveyed to determine whether or not they subscribe to…

A: Given that, 420 randomly selected people are surveyed to determine whether or not they subscribe to…