the quantitative reasoning section from a 2021 aptitude test has a mu of 1500 and a standard deviation of 100, what is the probability that the mean will be greater than 1525 with a sample of 25 students? Perform the appropriate statistic and write your answer in a percentage, rounded to the nearest hundredth, inclusive of the % sign. For example: 25.69%.

Q: Given a set of data that is skewed-left, there is at least _____ % of the data within 3 standard…

A: From the given information, Consider, As it has been given that data is left skewed as a result one…

Q: According to a 2009 Reader's Digest article, people throw away about 13% of what they buy at the…

A:

Q: You throw a ball as far as you can 5 times, recording the distance for each throw: 165 feet, 184…

A: since only 5 observation is given we will consider them as sample (n = 5)and population (N = 100)…

Q: The median is the point of the _____ percentile of distribution?

A: Median is the value that divides entire distribution between two equal parts also the median is the…

Q: 3. Identifying Extreme Values: Using the Normal Table in Reverse Steps: 1) Sketch the normal curve…

A:

Q: In the accompanying table, the random variable x represents the number of televisions in a household…

A: A distribution is said to be valid probability distribution, if the sum of all probabilities is…

Q: A poll showed that 68.5% of Americans say they believe that Marilyn Monroe had an affair with JFK.…

A: Given information- Percentage of Americans believe that Marilyn Monroe had an affair with JFK =…

Q: According to a 2009 Reader's Digest article, people throw away approximately 12% of what they buy at…

A: Given Data population proportion,p = 0.12 sample size n = 171

Q: A geneticist conducts an experiment with beans, one sample of offspring consisted of 455 green beans…

A: Solution-; Given: Number of green beans =455           Number of yellow beans =141           Total…

Q: Given a set of data that is skewed-right, there is at least % of the data within 3 standard…

A: Given

Q: A poll showed that 50.9% of Americans say they believe that some psychics can help solve murder…

A:

Q: The table summarizes results from 978 pedestrian deaths that were caused by automobile accidents.…

A: It is given that,

Q: According to a 2009 Reader's Digest article, people throw away about 7% of what they buy at the…

A: Given: Population proportion (p) = 7%  = 0.07    Sample proportion                  Sample size (n)…

Q: You have a sample of data. It turns out that the largest value in the data was a typo. Instead of…

A: The median and the range would be unaffected by this change. The median is the middle value in a…

Q: According to a 2009 Reader's Digest article, people throw away about 14% of what they buy at the…

A: Given data, p=14% =0.14 n=144 P(p<0.2)=?

Q: The table summarizes results from 978 pedestrian deaths that were caused by automobile accidents.…

A: Solution:                                                                Pedestrian Intoxicated…

Q: Within what interval would you expect the sample mean to fall, with 98 percent probability?

A:

Q: The test for a certain disease is 86% accurate.  A hospital tests a sample of 5000 patients for this…

A: Accuracy of the test is 86% Inaccuracy of the test = 14% N = Total number of patients = 5000…

Q: According to a 2009 Reader's Digest article, people throw away about 8% of what they buy at the…

A: n=78, p=8%

Q: Scores on an aptitude test are normally distributed with a mean of 1000 and standard deviation of…

A: It is give that the value of mean is 1000 and standard deviation is 120. If 1,590,000 student take…

Q: The data set below on the left represents the annual rate of return (in percent) of eight randomly…

A:

Q: According to a 2009 Reader's Digest article, people throw away approximately 10% of what they buy at…

A: Given Information: According to a 2009 Reader's Digest article, people throw away approximately 10%…

Q: In a brand recognition study, 806 consumers knew of Starbucks, and 19 did not. Use these results to…

A: The question is based on a probability Given : No. of consumers who knew S = 806 No. of consumers…

Q: According to a 2009 Reader's Digest article, people throw away about 10% of what they buy at the…

A: Given information : Population proportion = p= 10% = 0.10 q = 1 - p    = 1 - 0.10 = 0.90 Sample size…

Q: C2. GSS 2014 and GSS 2018 respondents were asked their opinion on whether homosexuals should have…

A: Given information: GSS 2014 and GSS 2018 respondents were asked their opinion on whether…

Q: The time to fly via a commercial airliner from Newark airport to Atlanta follows a uniform…

A: We have to find out given probability..

Q: The table summarizes results from 978 pedestrian deaths that were caused by automobile accidents.…

A: Pedestrian Intoxicated   Total DriverIntoxicated Yes No   Yes 52 72 124 No 263 591 854…

Q: The test for a certain disease is 86% accurate.  A hospital tests a sample of 5000 patients for this…

A: Given: Accuracy of the test is 86% Inaccuracy of the test = 100-86% = 14% N = Total number of…

Q: Ten percent of the world's population is left-handed. A researcher claims that left-handed…

A: Given dataTen percent of the worlds population are left handed.A researcher took a sample of 900…

Q: A poll showed that 49.4% of Americans say they believe that statistics teachers know the true…

A: Let p be the probability that poll showed that 49.4% of Americans say they believe that statistics…

Q: According to a 2009 Reader's Digest article, people throw away about 14% of what they buy at the…

A: Given: Sample size (n) = 135 Population proportion (p) = 0.14

Q: Many college admissions want to know your class percentage in addition to your grades.  The grades…

A: Consider that a random variable x, defines the grades.

Q: Emma loves Butterfinger bars and recently ate a bar that only weighed 58 grams. Based on the…

A: P (z < -1.67) = 0.0478Explanation:z = (x - µ)/σ = (58 - 60)/1.2 = -1.67 P (z < -1.67) = 0.0478…

Q: 5. The quality control manager at a light bulb factory needs to estimate the mean life of a large…

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

Q: A poll finds that 51​% of the population approves of the job that the President is​ doing; the poll…

A: a. The​ 95% confidence interval for the true population proportion that approves of the​ President's…

Q: Is the sample mean, calculated from a random sample, an unbiased estimator of the population mean?…

A:

Q: You are a data scientist investigating a new dataset you just received. After some preliminary…

A: Given,Q2=median=81.45Q3=86.71IQR=10.05

Q: The original question had percentage not probability. So what is the percentage are between 14.7 and…

A: The mean is 37.5 and the standard deviation is 7.6.