The ETS Verbal Aptitude Test is designed so that the scores of high school seniors taking the test will hav normal distribution with average 500 and SD 87. A college wants their students to be in the top 15% for ve aptitude. What minimum qualifying score should they set? Round your answer to 2 decimal places.

Q: Determine the two values of z such that the middle 58% of the data lie between the two z-values.

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Q: Kevin scored at the 70th percentile on a test given to 9920 students. How many students scored lower…

A:

Q: There is a 35% chance that it will be sunny tomorrow. What are the chances that it will not be…

A: Given Data: The percentage chances that it will be sunny tomorrow is: P=35% The percentage of…

Q: What scale of measurement is being used when a teacher measures the number of correct answers on a…

A:

Q: In population of high school students algebra scores, the mean is 64 and the standard is 6. Find the…

A: Here mean is 64 and standard deviation is 6.

Q: What proportion of z scores lie beteeen -2 and +2 in the height in inches data set? Round your…

A:

Q: The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the…

A: The cumulative frequencies are obtained in the below table:

Q: the average score of 10 students is 85. what will be the mean if another student will take the test…

A: From the provided information, Average score of 10 students = 85

Q: What's the median of 10.2,12.6,20.4, and 13.6 to 3 decimal places

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

Q: 14. A researcher collected data from a sample that she chose and she wishes to understand the…

A: The following information has been given: Observed Frequencies:   Performance Productivity Total…

Q: Calculate the 3rd quartile, 9th decile and 46th percentile c the distribution

A: The partition is the measure which divide the data set into equal number of parts. Some of the…

Q: A sample of psychology students in MSU-IIT was part of a study that examined their happiness level…

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Q: Find the z-score that cuts off 65% in the body on the left.

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Q: On Wednesday the average temperature outside was 40F. On thursday and friday it was 48F and 38F,…

A: Given information: Given that on Wednesday, the average temperature is 40F. On Thursday and Friday,…

Q: Give the test statistic and the p-value. Round your answer for the test statistic to two decimal…

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Q: Find the z-score that separates the largest 5% of scores from the rest.  Round your result to 3…

A: Obtain the z-score that separates the largest 5% of scores from the rest. The z-score that separates…

Q: What percent of scores are below a T score of 56?

A: Given, T score is 56. Now,

Q: You take a medical test and the doctor tells you that your wellness z-score is 1.86. What percent of…

A: Let X be a random variable from standard normal distribution with mean = 0 and standard deviation =…

Q: ate Kobe was 6'6" (or 78 inches).  Suppose the average height of men is 5'9" (or 69") and SD is 3".…

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Q: At music camp, Addison tracked the number of minutes she practiced her trombone each day.…

A: The objective of this question is to find the lower quartile of Addison's practice time. The lower…

Q: A social worker reports that 30% of workers in a factory are below 15 years of age. Of the 120…

A: Let p denotes the population proportion of workers in a factory who are below 15 years of age. Given…

Q: What proportion of z scores lie between -3 and +3 in the height in inches data set

A: We have to calculate P(-3 < Z < 3)

Q: Calculate the student's weighted grade point average if they received the following grades in their…

A: Given that,No. of different courses = 5To find the weighted grade point average of the…

Q: Score 30-under 40, frequency 1. Approximately what percent of students got more than 70?

A: Please submit entire data, comprising of values above 70, for the second subpart  to get it…

Q: Please answerR2:10

A: The normality of the data set is graphically represented by histogram. In histogram, the shape of…

Q: Marla scored 70% on her last unit exam in her statistics class. When Marla took the SAT exam, she…

A: solution:  The difference is that Marla’s exam in her statistics class was graded by percent of…

Q: This exercise provides information about data in a survey of students. The survey included 47…

A: Givenno.of students who smoke=47no.of students who do not smoke=338total no.of students=385

Q: A distribution of English exam scores has u = 70 and o = 4. A distribution of history exam scores…

A:

Q: A company gives the percentage of defective products as 6% or less. Use the sample below to…

A: Given: p0=0.06n=50x=5 The significance level is taken as 0.05.

Q: Timothy wants to estimate the percentage of homeowners that own at least one dog. He surveys 100…

A: To find out which of the given is a parameter :- A parameter is a numerical value that states…

Q: A class uses weighted averages to calculate your course grade.  Homework is worth 75% of your course…

A: The formula of weighted average is given by,  Xm = ∑xw/∑w = sum of (number × weighing factor)/sum…

Q: Rafael has scored 81, 77, 60, 71, and 90 on his previous five tests. What score does he need on his…

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Q: There were 34 females that weighed over 250 pounds. What percent of females aged 20 to 29 weighed…

A: Given data,  N~(161.61,48.95)  i.e., μ=161.61σ=48.95   If n=34 P(X>250)=?

Q: The histogram below describes the length of 48 fish caught by guests on Ray's Fishing Charter boat…

A: The histogram below describes the length of 48 fish caught by guests on Ray's Fishing Charter boat…

Q: The number of hours per week that the television is turned on is determined for each family in a…

A: Given information- Mean of the data = 35 hours Median = 31.2 hours Sample size = 24 families We have…

Q: Identify the test statistic. x² = 116.97 (Round to two decimal places as needed.)

A: Provide data,   25-34 35-44 45-54 55-64 Not HS grand 28 46 49 70 HS 85 18 88 83 1-3 years…

Q: Round the point estimate to the nearest thousandth. 445 randomly selected light bulbs were tested…

A: Given, No of light bulbs tested n = 445 No of light bulbs last more than 500 hours x = 316

Q: A first-semester freshman student took classes with associated grades as indicated in the table.…

A:

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.