Naomi scores 39 on a test. The standard deviation is 6.00. Her z score is +1.5. What is the mean of the test?   Question 13 options:   30.0   36.0   37.5   39.0

Q: For the mathematics part of the SAT the mean is 514 with a standard deviation of 113, and for the…

A: According to the given information in this questionWe need to identify the correct option

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: n a set of score, the coefficient of variation (in percentage terms) = 50% and standard deviation =…

A: The coefficient of variation is the ratio of the standard deviation to the mean. It is a measure of…

Q: 5.) If you choose 50 companies, what is the probability that the percent gain of the company is…

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Q: The average score of one of your Math exams was 75 with a standard deviation of 20. Assuming the…

A: From the provided information, Mean (µ) = 75 Standard deviation (σ) = 20 X~N (75, 20)

Q: For a group containing 100 observations, the arithmetic mean and the standard deviation 9 a nd-/1O5…

A: In the given situation, there are 100 observations. The arithmetic mean is 8 and the standard…

Q: A vending machine dispenses coffee into a twelve-ounce cup. The amount of coffee dispensed into the…

A: Step 1: Determine what is askedWe need to determine the mean amount of coffee to be dispensed by the…

Q: Anna Grace took the ACT and got a score of 31 on the math portion of the exam.  The scores are…

A: Proportion of students Anna Grace scored lower than is 0.0047 (0.47%).

Q: The following are data regarding number of minutes to accomplish a certain task: 121, 134, 145, 212,…

A: From the provided information, The data values are as follow: 121, 134, 145, 212, 289, 306, 367,…

Q: Use the range rule of thumb to identify the values that are significantly low, the values that are…

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Q: Use the data 2, 3, 3, 6, 6, 7. Add 2 to each of the numbers. How does this affect the mean? How does…

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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: It takes an average of 12.1 minutes for blood to begin clotting after an injury. An EMT wants to see…

A: The random variable is time to blood clotting.We have to test whether the population mean time for…

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

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Q: Laura learned that the average GPA in her school is 3.6 with a standard deviation of 0.3. If her GPA…

A: From the given information,   Mean = 3.6 Standard deviation = 0.3   The objective is to find the…

Q: a student had 93% in chemistry had a class average of 85% and standard deviation of 8%. the same…

A: Consider that the mean and standard deviation of a random variable x are µ and σ, respectively.…

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: aul received a score of 70 on a history test for which the class meam ass? biology test O history…

A: Concept: A z-score is known as the standard score that determines how much the data point deviates…

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…

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Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A: Given that,The middle 68% of the scores fall between 77 and 93.

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: Calculate the sample standard deviation for this data set: 88, 73, 91. The formula for the sample…

A: Given: Data set:88,73,91. n=3 Step 1: The sample mean is calculated as x¯=∑xin=88+73+913=84 Thus,…

Q: Justin got a score of 85 on an GE MMW examination for which the mean is 75. Justin realized that the…

A: Given:Here use the formula;here,  represents the value of Standard Daviation.

Q: mar is trying out to be a firefighter.  On the written exam, the mean of everyone who takes the test…

A: given data, μ=54.5σ=3.1Omar scores exactly 0.75 standard deviations above the mean z=0.75raw score…

Q: A vending machine dispenses coffee into a twelve-ounce cup. The amount of coffee dispensed into the…

A: Normal Distribution:Normal Distribution:The normal distribution is a continuous probability…

Q: For a statistics test the mean is 63 and the standard deviation is 7.0, and for a biology test the…

A: We know that ,Z-score=x-μσ

Q: To find an 88% confidence interval for mean body temperature of healthy US adult women using the…

A: Sample mean, x¯ = 98.382 sample standard deviation = s = 0.712 sample size, n = 50 Here the sample…

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…

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Q: On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90,…

A: Given that, Mean = 72 Standard deviation = 7

Q: Let's look at the relationship between hour Price (in thousands of dollars) and house Size (In…

A: Note: Hi! Thank you for the question. As you have posted multiple sub-parts, according to our…

Q: For standard deviation, the x-x or the y-y, which numbers do you use?

A: Please find the explanation below.

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

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Q: approximately the same. A recruiting office randomly surveys 50 entry level statisticians and 50…

A: Given Information: Number of statisticians,n1=50 Mean salary of statistician, x1¯=41100 Standard…

Q: standard deviation is s = 30. Determine the test statistic for this test.

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Q: Find the standard deviation of the following set of scores. 10, 2, 38, 23, 38, 23, 21, 23

A: From given data, set of score: 10, 2, 38, 23, 38, 23, 21, 23 Count, N = 8 Sum, ∑x = 178

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard…

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Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…

A:

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