A study found that 1 out of 200 adult males have green eyes. If a random sample of 400 adult males is​ obtained, is the sampling of the sample proportion of males that have green eyes approximately​ normal?   A. ​Yes, the sample size is greater than​ 10% of the population.   B. ​Yes, the sample was randomly selected   C. ​No, because np​ < 10   D. ​No, because nq​ < 10

Q: The table below gives information about a random sample of trees, and whether or not they have been…

A: We have to find E value.... For given data...

Q: A population consists of N = 4 numbers: 12, 15, 20, 24 with a mean of μ = 17.75. A random sample of…

A: Here the given information is  A population consists of N = 4 numbers: 12, 15, 20, 24 with a mean of…

Q: Q12. If 150 households were surveyed out of which 120 households have internet fiber cable, then…

A: Given Data: x=150-120=30 n=150

Q: 9. Suppose you have 30 observations from a random sample. Find the x2 value for a=0.01 14.95 49.59…

A:

Q: The average house in a particular city costs $ 58,000 and the sales price is normally distributed…

A: Given Data Population Mean,μ = 58000.0 Population Standard Deviation,σ = 5500.0

Q: Suppose there is a market test in which students will try two different brands of soft drinks. your…

A: p = 0.5 n = 200

Q: What is the appropriate distrubution for x?

A: Let p be the proportion of students own a cell phone. Given that p = 0.90 And X denote number of…

Q: The college Physical Education Department offered an Advanced First Aid course last quarter. The…

A: Givenz-scores of students isSue=-1.30Bill = -0.92mary = 0.00Mark =2.65Ben = 2.04Sam = -1.59

Q: people were asked what their lowest test score of the last semester was.  Data Set: 97, 88, 56, 64,…

A: Solution

Q: It has long been accepted by the general public that normal body temperature is 98.6 degrees. A…

A:

Q: When two births are randomly se- lected, the sample space for genders is bb, bg, gb, and gg (where b…

A: This question examines the sampling distribution of the sample proportion of girls from two births.…

Q: The assets (in billions of dollars) of the four wealthiest people in a particular country are 43,…

A: a. Consider the following table for the list of all possible samples with replacement for the…

Q: Determine whether the samples are independent or related. 2. A company involved in a large volume…

A: A company involved in a large volume of business by mail decides to test whether there is a…

Q: When dragons on the fictional planet Pern lay eggs, the eggs are either green or yellow. The…

A: The objective of this question is to calculate the mean, standard deviation, and variance of the…

Q: a) Compute the mean number of yellow eggs in samples of 58 eggs? (that is the same as asking for the…

A: Here use binomial theorem  Finite number of trial (n=58) Each trial independent from each other…

Q: Suppose that in a large class, the instructor announces that the average grade on an exam is 75.…

A: According to the definition of estimation, a sample mean is equal to the population mean.

Q: A. pulse rates are randomly selected from a set of measurements. The five pulse rates have a mean of…

A: In this question we have mean and four value given, we have to find the fifth value and also we have…

Q: A state legislator wishes to survey residents of her district to see what proportion of the…

A:

Q: on consists of 4 numbers {2,5,8,24}. Samples of size 2 are drawn from this population without…

A: Given, Population: 2, 5, 8, 24 n=2

Q: Test at 0.02 level of sig. to test Ho against HA: µ > 5

A: Here use t test

Q: A newspaper reported on the results of an opinion poll in which adults were asked what one thing…

A: According to the given information in this question We need to find 95% confidence interval

Q: Consider the population consisting of {4,5,9}. If samples of size n = 2 are randomly selected from…

A: Given that The population consisting of {4,5,9}. If samples of size n = 2 are randomly selected from…

Q: Make up a sample of size n = 7 for which the average is −13 (note the (−) sign). Not all 7 numbers…

A: Mean is the average value around which the whole data set is concentrated. For the set of 'n'…

Q: The manufacturer of a certain candy states that 15% of the candies are brown, 15% yellow, 25% red,…

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

Q: a) If you take a sample of size 59, can we say that the sampling distribution of p is approximately…

A: Given:  Assume you have a population of 28000 people where 4% of the population has some particular…

Q: Suppose an advocacy organization surveys 847 Canadians and 444 of them reported being born in…

A: Given that: Sample 1(Canadians): x1=444n1=847 Sample 2(U.S. Citizens): x2=16n2=119

Q: 1. How many possible samples of size 2 can be formed? 2. List all these possible samples and…

A: here given box contains 4 balls numbered 1,3,5,7 two balls are chosen from this box with…

Q: Suppose that Max is a climate change scientist and butterfly enthusiast. In Max's locale, the mean…

A: The distribution is normal and the population standard deviation is unknown so the t distribution…

Q: In the US, 43.5% of all people have type O blood, 39.7 % have type A blood, 11.9% have type B blood…

A:

Q: 8) a bag contours 5 blue, 4 red. marbles. A sample of 4 is taken and without replacement. Set up a…

A: Introduction: Denote the random variable X as the number of blue marbles in the sample, when 4 balls…

Q: 4. Suppose we take a random sample of size n of Penn State University Park students, and ask each of…

A: As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other…

Q: A company that produces white bread is concerned about the distribution of the amount of sodium in…

A: The sample size is 100, the sample mean is 103 and the sample standard deviation is 10.

Q: 3. A researcher estimates that the average height of buildings in terms of the number of storey in…

A: In hypothesis testing, the value of the test statistic is calculated from the sample observations.…

Q: (a) Find un (the mean of the sampling distribution of the sample proportion). (b) Find on (the…

A: p = 0.11 n = 7

Q: Each person in a random sample of 20 students at a particular university was asked whether he or she…

A:

Q: The researchers collected the data shown here on a self-esteem questionnaire. At a=0.05, can it be…

A:

Q: a. Obtain the cdf of X. b. What is P(X ≤ .5)? c. Using the cdf from (a), what is P(.25 < X ≤ .5)?…

A: we have the pdf, f(x) = 90x8(1-x)= 90(x8-x9) for 0&lt;x&lt;1 we want to find, a. Obtain the cdf of…

Q: In a random sample for 56 professional actors, it was found that 46 were extrovert.let p represent…

A: Given that in a random sample for 56 professional actors, it was found that 46 were extrovert. i.e.…

Q: A researcher is interested in whether self-proclaimed “cat people” are more introverted than…

A: The objective is to identify the appropriate test to validate the conclusion compared to the…

Q: Suppose we want to estimate p, the proportion of undergraduate students who cheat One strategy to…

A: Given that Y1, Y2, . . ., Yn denote the ''1/0'' ''yes/no'' responses.

Q: 4- Show that for a sample of =39, the smallest and the largest Z values are (-1.69) and (1.69), and…

A: Given, Sample n = 39

Q: Find each of the following. 7. A pack of Skittles contained a total of 75 pieces of which 15 were…

A:

Q: A population has = 60 and  = 10.  Find the z-score corresponding to each of the following sample…

A: Given Information: Population mean (u) = 60  Standard deviation (s) = 10

Q: in a random sample of 56 professional actors,it wa sfound that 46 were extroverts. let p represent…

A: Given that there are 56 professional actors and there are 46 extroverts among 56 professional…

Q: What is the skew of the following data set X = [4; 5; 5; 6]?

A: A distribution can be symmetric or asymmetric. Normal distribution is a symmetric distribution.…