For a population, N = 12,000 and p = 0.71. A random sample of 902 elements selected from this population gave p the sampling error. = 0.61. Find Enter the exact answer. sampling error =

Q: A certain report claims that 75% of female teenagers aged 13–16 watch Asian television series, with…

A: given  A certain report claims that 75% of female teenagers aged 13–16 watch Asian television…

Q: Calculate value of (t) if: first sample mean = 85, second sample mean = 91, and o x1-x2 =

A: We want to findvalue of t

Q: Describe the sampling distribution of . Assume the size of the population is 30,000. n​=700, p=.144…

A: Given,   Sample size = 700 Proportion = 0.144   The objective is find the sampling distribution.

Q: If the population mean is 12.45, what is the mean of the sampling distribution of its means?    If…

A: It is stated by the Central Limit Theorem that when the sample size is large which means it is…

Q: A grocery store manager wants to know if displaying cranberries near the entrance to the store…

A: P1 : Proportion of shoppers who buy Cranberries when they are near the store entrance. P2 :…

Q: Suppose 5% of students are veterans and 140 students are involved in sports. How unusual would it be…

A: Determine the mean of the sampling distribution for the proportion of veterans. The mean of the…

Q: The average age of the MBA students in a statistics class is 30.7 years old. The ages of five…

A: Given data: 36, 25, 25, 29, 30.

Q: If you want to be 99​% confident of estimating the population proportion to within a sampling error…

A: compute sample size ( n ) = n=(Z/E)^2*p*(1-p)

Q: As a Physical Education teacher of Hermosa National High School Senior High School, Ma’am Mary Ann…

A: Given:   x x2 1.47 2.16 1.58 2.50 1.67 2.79 1.69 2.86 1.51 2.28

Q: Find a sample size for which the median will always equal one of the values in the sample.

A: Median: The median is the middle-most observation in an ordered (in an ascending or descending…

Q: Among the random and non-random sampling techniques that we have, which do you think is the most…

A: Random/Probability sampling is a technique in which each member of the population has an equal and…

Q: n each part, tell whether the sampling method is random and also if it is biased. If it is not…

A: Sampling bias: Sampling bias occurs when a certain part of the population is favored more into the…

Q: b. Alpha is 10%, the sample size is 45 and sigma is known.

A:

Q: If σ = 35, what sample size would you need to get the standard error to be at most 2.5? If the…

A:

Q: Suppose that you have a group of 1,000 city government employees and you want to survey them to find…

A: Given Information: Total Population = 1000 Margin of error = 0.05 Consider the proportion = 0.5 The…

Q: class contains 8 students. Find the number of ordered sample of size 3 with replacemen

A: Since , the class contains 8 students. Our aim is to find the number of ordered sample of size 3…

Q: A university dean is interested in determining the proportion of students who receive some sort of…

A: Given information: The sample proportion of students who receive some sort of financial aid is p =…

Q: Suppose the average grade point average (GPA) for the undergraduate student population on our campus…

A: The population average grade point is µ = 3.10.

Q: At a large university, 80% of all students live on campus. Suppose a random selected from this…

A: At a large university 80% of all students live on campus; p=0.80 A random sample of 218 students is…

Q: From a population of 1000 items, we need to take a sample of 100 items. If we use systematic random…

A:

Q: When finding the t-value, how many degrees of freedom do we have from a sample size of n=10?

A: Degrees of freedom = n-1

Q: We need to estimate the percentage of businesses that plan to hire additional employees in the next…

A:

Q: Suppose that we will randomly select a sample of n= 94 elements from a population and that we will…

A: From the given information, n=94 and p=0.8 n(1-p)=941-0.8              =18.8

Q: An opaque jar contains 300 marbles, all either green or purple. Calista pulls out 10 marbles without…

A: # Given: no of marble in jar N=300  Sample of size n=10 drawn  No of purple marble in sample =2…

Q: A market researcher obtains a sample of 50 people by standing outside a store and asking every 20th…

A: Here the sample size n = 50 A researcher obtains data from every 20th customer.

Q: A study shows that 80% of students in a school love to listen to music while studying, with a…

A: Given : A study shows that 80% of students in a school love to listen to music while studying, with…

Q: determine the sampling error if the grade point averages for 10 randomly selected students from a…

A: A sample is used to represent the entire population and to achieve it the sample should be large…

Q: of 90% with a sample

A: Given : Sample size = n = 19 Significance level, α =1- 0.9 = 0.1

Q: Assume that 26% of students at a university wear glasses. Suppose 300 students are randomly…

A: It is given that Sample size n = 300 Population proportion p = 0.26

Q: A population is normally distributed with µ = 90 and σ = 8. For this population, which is the 29th…

A: Solution-: Given: μ=90,σ=8 We want to find 29th percentile?

Q: 1. How many samples must be considered from a population of 28,000 students, if 5% margin of error…

A:

Q: 1. How many random samples of size 3 can be made? [ Select ] 2. What are the possible sample means…

A: Here sample is drawn without replacement

Q: The sampling plan: n = 350 and c = 1, meets a confidence-reliability of (95%, 99%) A. True or False.…

A:

Q: In a simple random sample size of 89, there were 40 individuals in the category of interest. It is…

A: Solution

Q: estimate the population proportion p,what is the minimum sample size we need in order to achieve a…

A: Solution: From the given information, confidence level is 0.95, p=0.1 and E=0.01.

Q: If the sample size is decreased, then the sampling error will -- a. not change b. Increase c.…

A: The sampling error is sn.

Q: Find the estimated standard error for the sample mean for n = 27 and SS= 3505. Round to the nearest…

A: We have given that  n = 27 and SS= 3505 The formula to find estimated standard error for the sample…

Q: By how many times does the sample size have to be increased to decrease the margin of error by a…

A: Formula for margin of error is ME = Zα/2 * σ / √n where Zα/2 = critical value

Q: P(-2.5 < t < 2.5) with a sample size of 15 ?

A: Given that  Sample size (n) = 15 Degrees of freedom (df) = (n-1) = 15-1 = 14   Here asked about…

Q: Suppose the true proportion of voters in the county who support a new fire district is 0.53.…

A: The mean of the binomial random variable obtained by the formula μ=np, where (n) is the number of…

Q: You randomly selected one sample of 40 citizens of your city to see if they wanted to increase taxes…

A: See the solution

Q: a random sample of 74 people, 38 are classified as "successful" Determine the sample proportion, p,…

A: Given data,Number of people n=74Classified are successfull is 38

Q: if the 90% Ci for the population mean is (-4.58, 6.54) what is the sample mean O a. can't be found

A: Given data,Lower limit =-4.58Upper limit =6.54Sample mean =?

Q: We know that 65% of all Americans prefer chocolate over vanilla ice cream. Suppose that 100C people…

A: Given :

Q: A radio advertiser wishes to choose a sample of size 100 from a population of 5000 listeners. He…

A: In stratified random sampling we divide the population into equal parts then we select proportional…

Q: Describe about the Sampling Distribution of t.

A: Sampling distribution is used to describe the sample statistic or any function of the sample, which…

Q: if the population mean is 12.45 what is the mean of the sampling distribution of its means?

A: Given : Population mean(μ) =  12.45

Q: A. The given population is 3476, n = 528, what will be the value of e (margin of error)? B. If a…

A: The objective is to find margin of error ,and to determine sampling interval of systematic sampling…

Q: For a population, N = 12,000 and p = 0.77.A random sample of 903 elements selected from this…

A: Solution: Given information: N= 12000  Population size p = 0.77 Population proportion  n= 903 Sample…