Suppose that the sample coefficient of variation for the variable X is 6.5 and the sample average of X is 85.6. Knowing this, what is the sample standard deviation of X? 556.4 625..3 O 85.36 O None of the above O Not enough information to tell

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A:

Q: Suppose the data have a bell-shaped distribution with a mean of 60 and a standard deviation of 4 .…

A: Empirical rule: For a normal distribution, the approximate values that fall in the specified…

Q: What is the explained variance and unexplained variance. correlation coefficient, is .771…

A: Determine the value of explained variance.   The value of explained variance is determined below as…

Q: Suppose that a category of world class runners are known to run a marathon (26 miles) in an average…

A: The random variable X is the average of the 49 races. The mean is 142, and standard deviation is 13.…

Q: Q No.3) The nine items of a sample had the following values: 45, 47, 50, 52, 46, 40, 49, 55, 66 Does…

A: Given: μ=45α=0.05Sample size, n=9 Sample, x 45 47 50 52 46 40 49 55 66

Q: One of the conditions for one-sample z test is that the population standard deviation is known.…

A: It is given that the statement about to the z-test. Here need to find out the given statement is…

Q: An SRS of 25 recent birth records at the local hospital was selected. In the sample, the average…

A: Given that  x¯=119.6n=25σ=6.5 And the population of all babies born in hospital, the birth weights…

Q: 7.7 Use a computer program to compute the probability that a t distribution with 36 df exceeds 2.5.

A: The degrees of freedom is, df = 36.

Q: A student score 83 on a Mathematics in the Modern World has a mean of 72 and a standard deviation of…

A: Mathematics in Modern World  Mean1=mu1=72 Standard deviation 1=sigma1=6 Student score=X1=83…

Q: (c) without assuming anything about the distribution of times, what can be said about the percentage…

A:

Q: Suppose the  scores of students on an exam are normally distributed with a mean of 520 and a…

A:

Q: Which of the following is a correct statement? A The discrepancy between the sample and the…

A:

Q: Suppose the number of games in which chess players play during their career is normally distributed…

A:

Q: 4. Which of the following better approximates the standard deviation of the sample means? a. b. 2.…

A: We have given the following statement about the standard deviation of the sample mean.

Q: 6. Which set of scores has the smallest standard deviation? Note: you shouldn't have to calculate…

A: by observing the above data  the set of score have smallest standard deviation is c)…

Q: Chebyshev's Theorem states that the percentage of measurements in a data set that fall within three…

A: The Chebyshev's theorem provides bounds on the probability for distributions for which mean and…

Q: Suppose you know that the x distribution has a mean 75 and standard deviation 12 but you have no…

A: It is given that, x distribution has a mean 75 and standard deviation 12 but you have no information…

Q: Electric bulb manufactured by X and Y companies gave the following results : Using standard error of…

A:

Q: Suppose that vehicle speeds at an interstate location have a normal distribution with a mean equal…

A: Here, µ = 70 mph and σ2 = 25 mph.

Q: In a study of speed dating, female subjects were asked to rate the attractiveness of their male…

A: Range of a data set is the difference between the minimum and maximum observations.

Q: Calculate the means and standard deviations of:1, 2, 3, 4, 5 O a. mean = 3; st. dev. = 1.414 b. mean…

A:

Q: A confused Stat Professor claims the mean height of men is 66". His students take a sample of 16 men…

A: We have to select correct option that is true for given test

Q: a. What is the distribution of ? - NO b. For the group of 11, find the probability that the average…

A: here given  for population  mean = 190  mm standard deviation  =  7 mm

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: An analysis of variance produces SS total=90 and SS within=40 For this analysis what is SS  between?…

A: Given : SS total=90 and SS within=40