What is the probability that a data value in a normal distribution is between a z-score of -1.13 and a z-score of -0.19? Round your answer to the nearest tenth of a percent. A. 26.5% О В. 28.5% C. 27.5% D. 29.5%

Q: Determine whether the following graph can represent a variable with a normal distribution. Explain…

A: The objective is to interpret the provided graphical distribution. For this, the nature of the…

Q: Use the table below to find the percentage of data items in a normal distribution that lie a. below…

A: Solution:Percentile reports the percentage of data items in a normal distribution that lies below…

Q: A student's grade on an examination was transformed to a z value of 2. Assuming a normal…

A: Students's score is transformed to z value. Z = 2Normal distributionshe scored in top how much…

Q: Peter has collected data to find that the finishing times for cyclists in a race has a normal…

A: Given that, Mean µ=156 Standard deviation σ =15

Q: The SAT scores for students are normally distributed with a mean of 1030 and a standard deviation of…

A:

Q: d. Find the 77th percentile for the mean score for this sample size. e. P(21.9204 < ữ < 22.6932) =…

A: d. The 77th percentile for the mean score for this sample size is,…

Q: Could the graph represent a variable with normal distribution? If so, what is the mean and what is…

A:

Q: Suppose you have a normal distribution with a mean of 10 and a standard deviation of 2.…

A: According to the given information, we have Given that the normal distribution with a mean of 10 and…

Q: The director of research and development testing and new drugs she wants to know if there's evidence…

A: Test statistic:Denote μ as the claimed mean; μ = 384. In a random sample of n = 79, the sample mean…

Q: A survey indicates that people use their computers an average of 4.5 years before buying a new one.…

A: GivenMean(μ)=4.5standard deviation(σ)=0.75

Q: 100 and o = 10, what X values separate the 2. For a normal distribution with u middle 95% from the…

A:

Q: What percentage of scores in a normal distribution fall at or above a z score of 1.04?

A: given data  normal distribution percentage of scores above Z:1.04 = ?

Q: In normal distribution find the mean when the standard is 5 and 3.78% of the area lies to the left…

A: Suppose the variable of interest is x. The random variable x follows normal distribution with mean µ…

Q: What is the probability that a data value in a normal distribution is between a Z-score of -1.42 and…

A: Let Z be the random variable from normal distribution then we will find the probability between z =…

Q: Suppose final exam scores for a college class follow a Normal distribution with mean 80 and standard…

A: Mean()=80standard deviation()=5

Q: Changing the mean and standard deviation of a Normal distribution by a moderate amount can greatly…

A:

Q: A pharmaceutical company makes tranquilizers. It is assumed that the distribution for the length of…

A: The population standard deviation is unknown here. The population distribution is approximately…

Q: Which statement is true about a normal distribution? O The mean is equal to twice the median and the…

A: given

Q: Measure the significance of the difference in the height of Chris's friend before and now with a…

A:

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

A:

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

A:

Q: < Area Under a Normal Distribution Bin... THE SCORES OF A SCIENCE TEST HAD AN AVERAGE OF 78 AND A…

A: GivenMean=78standard deviation(σ)=3

Q: The times that college standard deviation of 2.2 hours. Find the probability that the mean time…

A: u = 7.9 s = 2.2 n = 45

Q: The annual per capita consumption of ice cream (in pounds) in the United States can be approximated…

A:

Q: Find the proportion of Normally distributed observations with a z-score below 0.82. Give your answer…

A: From the provided information, The z score is below 0.82.

Q: One graph in the figure represents a normal distribution with mean u= 15 and standard deviation o =…

A: Given: One graph has μ=15 and σ=2.Another graph has μ=11 and σ=2.

Q: 3. What z-score separates the lowest 10% of the distribution from the rest? a, z= 0.90 %3D b. z…

A: Let X be the random variable from normal distribution then we will find the z-score separates the…

Q: 4. Which proportion of a normal distribution is located between the mean and z = +1.40? 5. A…

A: The proportion of a standard normal distribution which is located between mean and z = 1.40 is given…