A standardized measure of achievement motivation is normally distributed, with a mean of 35 and a standard deviation of 14. Higher scores correspond to more achievement motivation. 2.5% of the students scored higher than Shamu. What was her achievement motivation score? O 25 49 O 63 95

Q: Suppose that the exam scores of a statistics class were normally distributed with a mean of 94 and…

A: Solution: Let X be the exam score of a statistics class. From the given information, X follows…

Q: In the 1992 presidential election, Alaska's 40 election districts averaged 2118 votes per district…

A: Note: Thank you for the question. Since multiple subparts are posted, according to our policy, we…

Q: On a nationwide math test, the mean was 51 and the standard deviation was 4. If Roberto scored 70,…

A:

Q: A large chemistry exam course took their final exam. The mean was 75 with a standard deviation of 8.…

A: Obtain the Z-score of the random variable X equals 60. The Z-score of the random variable X equals…

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: he senior class has been given a comprehensive examination to assess educational experience. The…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: The mean height for women in the United States is approximately 64.5 inches with a standard…

A: Formula : Z =(X - μ)/σ

Q: he cost of laptops is normally distributed with a mean of $750 and a standard deviation of $60. What…

A: GivenMean(μ)=750standard deviation(σ)=60

Q: On a nationwide math test, the mean was 63 and the standard deviation was 10. If Roberto scored 85,…

A: GivenMean(μ)=63standard deviation(σ)=10score(x)=85

Q: Provide a set of 20 data points that has a mean of 20, a median of 25, an IQR of 10, and a sample…

A: Data should have mean of 20, a median of 25, an IQR of 10, and a sample standard deviation between 9…

Q: ould have the right to marry. (The 2014 data were collected before the 2015 US upreme Court decision…

A: There are four types of level of measurement, i.e.,  Ratio scale: data is continuous and have a…

Q: In the 1992 presidential election, Alaska's 40 election districts averaged 2145 votes per district…

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

Q: You want to know the percentage of utility companies that earned revenue less than 39 million or…

A: Given data You want to know the percentage of utility companies that earned revenue less than…

Q: On a nationwide math test, the mean was 52 and the standard deviation was 4. If Roberto scored 85,…

A: The z score formula is,

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

A: Given information:

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: In the 1992 presidential election, Alaska's 40 election districts averaged 2071 votes per district…

A:

Q: Kathy is a business administration major at Florida State University. She is comparing her…

A: The z-value is the standardized value that explains about the relative measure of a data value. The…

Q: A population has mean 27 and standard deviation 12 . What is the data value that has a z-score of -2…

A: Given data, Mean=27 sd=12 z=-2 x=?

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: The weight of a division I college football player has a mean of 255lb and a standard deviation of…

A:

Q: Which test was better?. Gina took a midterm in her math class and her biology class. After she gets…

A: The objective is to calculate z score for math test for Gina. we have given  x=47 mean(x)=39…

Q: H=34, o=4.5, the score is 2.5 standard deviations above the mean

A: Suppose the variable of interest is x.The mean is and the standard deviation is .

Q: Abby's score of 704 on the math portion of the 2002 GRE exam placed her in the 84th percentile rank.…

A: given data  Abby score x = 704 84th percentile σ = 141μ = ?

Q: The mean composite score for seniors who took the SAT in 2010 was 1068. If the standard deviation…

A: From the provided information, Mean (µ) = 1068 Standard deviation (σ) = 100

Q: On a nationwide math test, the mean was 57 and the standard deviation was 4. If Roberto scored 90,…

A: Formula for z-score is

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

A:

Q: In the 1992 presidential election, Alaska's 40 election districts averaged 2108 votes per district…

A: Given: Alaska's 40 election districts X = number of votes for President Clinton for an election…

Q: In the 1992 presidential election, Alaska's 40 election districts averaged 2023 votes per district…

A: Givenμ=2023 and σ=555   Use standardization asz=x-μσ

Q: On a verbal skill test, the mean was 72 and the standard deviation was 7. If John scored 75, what…

A: Given data,Mean μ=72sd      σ=7If John scored 75z-score=?

Q: The weights for newborn babies is approximately normally distributed with a mean of 5.9 pounds and a…

A: Solution: Let X be the weight for new born babies. From the given information, X follows normal…

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: The formula for calculation of z – score is shown below                   z = (x – xbar)/sd where, x…

Q: The weight of football players is normally distributed with a mean of 200 pounds and a standard…

A: Here we have given the, weight of football players is normally distributed with a mean of 200 pounds…