A normal distribution has a mean of u = 24 with a = 3. What is the minimum score needed to be in the top 14% of the distribution? Question 7 options: X = 24.42 X = 25.08 X = 27.24 X = 20.76

Q: One sample of scores has a mean of M = 45 and a sample size of n = 10 scores.  A second sample of…

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Q: Find the raw score which corresponds to z=1.6?

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Q: Molly's score was 68 on a test with a mean of 80 and a standard deviation of 9.  What is her…

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Q: For the data in the following sample: 1,1,9,1 A. Find the ss, variane, and standard deviation. B.…

A: Given data: 1,1,9,1

Q: Naomi scores 39 on a test. The standard deviation is 6.00. Her z score is +1.5. What is the mean of…

A: given data x = 39 σ = 6z = 1.5μ = ?

Q: Find the proportion of Normally distributed observations with a zz-score below -1.53.

A: It is given that the z-score below -1.53.

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

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Q: Find the area of iPpupis AU -0.45 0 2.11 A. 0.3438 В. 0.6562 С. 1.3090 O D. 0.3090 loct vour answer.

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Q: QUESTION 6 Given an x-mean of 15 and a y-mean of 12.2, calculate the crossproduct of x=15 and y=8.

A: When x=15 and y=8 Crrosproduct =x*y = 15*8

Q: or a distribution, the mean is 100 and the standard deviation is 4.  If a data value x has a value…

A: Given data,Mean μ=100sd σ=4If x=90z=?

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: scores are normally distributed with mean 500 and standard deviation 100. Julie scores 650. Her…

A: Consider X be the random variable representing the SAT scores. X follows normal distribution with…

Q: Find the value of the test statistic z.   The claim is that the proportion of drowning deaths of…

A: It is given that the claim is the proportion of drowning deaths of children attributable to beaches…

Q: a survey of Town X found an average of 3.2 perosns per household and a mean of 1.2 televisions. I f…

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Q: What proportion of a normal distribution is located above the mean?

A: z-score: z-score is a standardized score which tells about how many standard deviations does a data…

Q: . A distribution has a coefficient of variation of 65% and mean of 47. What is the value of the…

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Q: A standardized test has a pop. mean of 152 and a standard deviation of 16. Molly scores at the 91st…

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Q: Use the table to find the standard score and percentile of the following data values. a. A data…

A: We will use the given table to solve the problem.

Q: Find the critical value. The critical value is zo =. %3D

A: Given α=0.10

Q: which in the picture is an estimator for the population mean µ?

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Q: Among freshmen at a certain university, scores on the Math SAT followed the normal curve, with an…

A: We have given that, Population mean (μ) = 550 and  standard deviation (σ) = 100 Then,  We will find…

Q: Which average is affected most by extreme values Oa. Median O b. Arithmetic Mean OC. Mode Od.…

A: Median is the middle-most value of the sorted data. Removing extreme values does not affect much the…

Q: The middle 95% of a group of 1000 students got scores ranging from 50 to 90 on a math test. If the…

A: Normal Distribution: Understand the properties of the normal distribution, including the mean (μ)…

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: Find the proportion of Normally distributed observations with a zz-score above -2.84. Give your…

A: Given the proportion of Normally distributed observations with a z-score above -2.84

Q: Percentage of 18-to 24-year olds living in parents' homes Refer to the figure at the right. At a =…

A: For the given data perform z test for two proportion test

Q: Refer to the figure at the right. At a= 0.10, can you reject the claim that the proportion of 18 to…

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Q: Can you reject the claim that the proportion of 18 to 24-year-olds living in their parents' homes…

A: Given that  Sample sizes n1=248 , n2=244 Sample proportion p1^=0.515 , p2^=0.412

Q: the mean is 146, and standard deviation is 35. A score of 181 is how many z-scores above the mean?

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Q: ind the percentage of area under a normal curve between the mean and the given number of standard…

A: The mean and standard deviation of the standard normal distribution are 0 and 1.

Q: Find the standardized test statistic. z= 2.29 (Round to two decimal places as needed.) Can you…

A: Sample sizes n1=248 , n2=244 Sample proportion p1^=0.515 , p2^=0.412

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults doors, and those…

A: Here we need to find the indicated iq score.

Q: The lifespans of lizards in particular zoo are normally distributed. The average lizard lives 3.1…

A: It is given that the lifespans are normally distributed with an average lifespan of 3.1 years.   It…

Q: Find the indicated IQ score.

A: Let X denote the IQ scores of adults. Given that X follows N(mean = 100, SD = 15)

Q: 0.75

A: Given X is normal Distributed with mean µ = 100.0 and standard deviation σ = 15.0 now will use…