A test score of 65 on a test having a mean of 72 and a standard deviation of 9. Determine if the value is unusual. Explain. Enter the number that is being interpreted to arrive at your conclusion rounded to the nearest hundredth

Q: Construct the described data set. The entries in the data set cannot all be the same. The mean is…

A: It is needed to discuss about the mean.

Q: Data show that men between the ages of 20 and 29 in a general population have a mean height of 69.3…

A:

Q: days threy 23 of 28 find the mean? 438 264 find the Standard 73 15 totul 827

A:

Q: At the end of the semester a professor wants to organize student’s grades by how many students…

A: Given data, At the end of the semester a professor wants to organize student’s grades by how many…

Q: . Explain what the mean is

A:

Q: Suppose X - N (-9,4). Between what a values does 95.48% of the data lie? The range of a values is…

A:

Q: If the average number of textbooks in professors' offices is 14, the standard deviation is 5, and…

A: Given that For textbooks, mean = 14, and SD = 5 For age, mean = 42, and SD = 10

Q: Mr. Zuro finds the mean height of all 16 students in his statistics class to be 66.0 inches. Just as…

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Q: Below represents the amounts that a random sample of employees reported that they spent on dinner…

A:

Q: Use the sample mean(78.5)and sample standard deviation (12.3671)in your calculations below. Use…

A: Given that:

Q: Steven ran the 100 meter dash in 13 seconds.  What is his T-score if the class mean was 14 seconds…

A: t statistic

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

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Q: e. Use Excel's statistical functions, such as "=average", to get the mean, median, range, variance,…

A: Since you have posted a question with multiple sub-parts, we will solve first 3 sub-parts for you.…

Q: The average IQ of the adult population is 100. A researcher believes that average IQ of the…

A: The sample mean is calculated as follows: Mean = (69+79+89+99+109)/5           = 445/5           =…

Q: Raul received a score of 62 on a history test for which the class mean was 52 with standard…

A:

Q: Consider a value to be significantly low if its z score less than or equal to −2 or consider a value…

A: The mean test score  to assess readiness for college = 20.8 Standard deviation = 4.5   Given z…

Q: The data are daily high temperatures in a town for one week. Find the mean, median, range, sample…

A: From the provided information, The data values are as follow: 59, 50, 65, 68, 72, 80, 82 Sample size…

Q: Please do not give solution in image formate thanku.  A survey investigated how much money parents…

A: Population mean, Population standard deviation,

Q: Find the standard Deviation, Round your answer to the nearest tenth as needed 18,19,15, 20, 10, 6,…

A:

Q: The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the…

A: Solution:  The frequency distribution for the data is  f Midpoint x xf 2 70.5 141 10 92.5 925…

Q: The mean score on a set of 17 tests is 85. Suppose two more students take the test and score 62 and…

A: we need to find new mean using given conditions

Q: 5. Two different 5th grade classes take the same test. In the first class of 50 students the mean…

A: Given the First class Sample size =50  Mean =70  Second class  Sample size =20  Mean =90 We have to…

Q: Three cars are driving on a racetrack. The mean speed of the three cars is 100 miles per hour.  Car…

A:

Q: A data set has a mean of 70.7 and a standard deviation of 6.2. The score of 69, is how many standard…

A:

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A: 36) Answer:- Given, The IQ scores (X) of adults are normally distributed with a mean of 100 and a…

Q: Entry to a cerain university is determined by a national test. The scores on this test are normally…

A:

Q: Ivan and his family are relocating to Los Angeles and have found a great area in which to live. The…

A:

Q: Your statistics teacher splurges on five comic books, spending $1230, $70, $540, $610, and $1600 on…

A: Given 1230 70 540 610 1600

Q: Tally is interested in the fuel efficiency of her car. She computes how many miles per gallon her…

A: Given data, Miles per Gallon 28 36 56 64

Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

A:

Q: the mean and standard deviation for each group of numbers. Round answers to the hundredths place if…

A: Explanation and solutions is given below....

Q: Three cars are driving on a racetrack. The mean speed of the three cars is 100 miles per hour. Car X…

A: The objective of this question is to find the speed of Car Z using the mean speed of the three cars.

Q: Using the short cut formula we learned in class, find the standard deviation of the following list…

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Q: Find the standard deviation, coefficient of variation, and the 88.9% Chebyshev interval. numbers-…

A: The mean of the given data is X¯=14+45+54+.........19+3920=71020=35.5 Now the standard deviation is…

Q: Three cars are driving on a racetrack. The mean speed of the three cars is 100 miles per hour. Car X…

A: Ans:

Q: The data shows the total number of employee medical leave days taken for on-the-job accidents in the…

A: Mean:

Q: Find the range and the standard deviation (correct to two decimal places). 81, 91, 96, 96, 96 a)…

A: From the given information we find the range and standard deviation.

Q: Assume a mean of 105 papers and a standard deviation of 15 papers. Pays 40¢ for each paper, paper…

A: Given information: μ=105σ=15Cost price for paper=40 centsSelling price for paper=90 cents

Q: d. Suppose the company wanted to give raises to the employees who were in the lowest 20% salaries at…

A: Z = x-μσ~N(0,1) NORMSINV() -----------Excel function

Q: 2. Suppose the following are the number of times a student looks at their phone while the professor…

A: Given : Obs. (X) 4 5 6 8 1 2 4 4 3

Q: The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the…

A: