You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 84%. You would like to be 98% confident that your esimate is within 2.5% of the true population proportion. How large of a sample size is required? n=

Q: Assume that when human resource managers are randomly selected, 54% say job applicants should follow…

A: It is given that-The population proportion of job applicants who should follow up within two weeks…

Q: . You are trying to find the average weight of a breed of fish in a river. You catch the fish,…

A: Sampling is a process which involves the collection of a set of individuals from the population.

Q: The number of traffic accidents at a certain intersection is thought to be well modeled by a Poisson…

A: The objective of the question is to find various probabilities and statistics related to the waiting…

Q: A certain flight arrives on time 89 percent of the time. Suppose 121 flights are randomly selected.…

A: It is given that a certain flight arrives on time, 89% of the time and a random sample of 121…

Q: 22.) The average of 18 numbers is 76. The difference between the largest umber and the smallest…

A:

Q: college is trying to determine if there is a significant difference in the mean GMAT score of…

A: Information has been provided regarding the GMAT scores of MBA students based on their background…

Q: For the cross-tabulation data shown below, which represents a count of the type of books that…

A: The question is about categorical data analysis.Given :

Q: Scores on an exam were normally distributed. Ten percent of the scores were below 60.0 and 80% were…

A:

Q: trying to determine if there is a significant difference in the mean approval based on education…

A: k = 3 goups or treatment

Q: The time between requests to a web server is exponentially distributed with mean 0.500 seconds.   1.…

A: The objective of the question is to find the probabilities of different scenarios related to the…

Q: 117. The coefficient of correlation when coefficients of regression and 1.8 is (a) 0.36 (b) 0.2 (c)…

A:

Q: continue the question

A: Given that the portfolio is homogeneous with an average number of claims per year of 75, the mean,…

Q: Consider a renewal process with the lifetimes X1, X2, ... having the probability density function…

A: To solve the given problem, there are a series of steps that must be followed. The problem deals…

Q: Is the average number of people who visit the ER every day decreasing?   It is known the average…

A: 95% confidence interval (115.0647, 124.9353)Explanation:Step 1:…

Q: デジタル形式で段階的に解決 ありがとう!! SOLVE STEP BY STEP IN DIGITAL FORMAT In a simple random sample of 50 articles…

A: a) 90% CI: C.I=32±1.645(50​6​) C.IL.B​=32−1.645(50​6​)=30.604 C.IU.B​=32+1.645(50​6​)=33.396 This…

Q: Find the level of the confidence interval that has the value %a/2 = 1.96. (Round the final answer to…

A: The objective of this question is to find the level of the confidence interval given that the value…

Q: For the cross-labulation data shown below, which represents a count of the type of books that…

A: The cross-tabulation data which represents the type of books that an individual prefers is shown…

Q: A die is rolled. Find the probability of the given event. (a) The number showing is a 5; The…

A: a)A die is rolled.The numbers in the outcomes of rolling a fair die are, .

Q: The shares of the U.S. automobile market held in 1990 by General Motors, Japanese manufacturers,…

A: A survey of new buyers shows the following purchase frequency.GMJapeneseFordChryslerOtherObserved…

Q: The following table shows worldwide sales and projected sales of a certain type of phone and their…

A: The data related to selling price and sales for a certain type of phone is given.

Q: Let X equal the number of milliliters of a liquid in a bottle that has a label volume of 350 ml.…

A: The objective of this question is to find the power function K(μ) for the given hypothesis test and…

Q: In a baseball playoff series, the two teams are evenly matched. The two teams must play until one…

A: baseball teams are evenly matched in the playoff series.The play continues until  team wins  games…

Q: Assume that different groups of couples use a particular method of gender selection and each couple…

A:

Q: A public opinion poll surveyed a simple random sample of 1000 voters. Respondents were classified by…

A: There are a  gender gap,the men's voting preferences differ significantly from the women's…

Q: i need the answer quickly

A: To address this task, let's follow it in structured parts for clarity and understanding.1. Three-Day…

Q: [O] Uniform Distribution: Q68. A discrete random variable x follows uniform distribution and takes…

A: It is given that the variable, x follows a uniform distribution.The values that variable x assumes…

Q: Consider the normal distribution represented by the normal curve in the figure to the right. (Assume…

A: The question is about normal distribution.Given :The two labeled values 73.2 cm and 96.8 cm are at…

Q: Scrapper Elevator Company has 20 sales representatives who sell its product throughout the United…

A: According to guidelines we will only the first three subparts of the question.Solution

Q: Is the mean length of adult invasive Lionfish in the Atlantic coast of South Carolina greater than…

A: The sample information is provided in Excel sheet as IJ1Count202mean434.453standard…

Q: 10. The median of the observation 11, 12, 14, 18, x +4, 30, 32, 35, 41 arranged in ascending order…

A: From the provided information,The median of the observation is 24.Number of observation (n) = 9

Q: 50 psychology students took a standardized test. The scores are summarized in the GFDT below. Scores…

A: The given table shows that the total number of psychology students took a test is 50.

Q: Test the hypothesis that the average content of containers of a particular lubricant is 10 liters if…

A: The question is about hypothesis testing.Given :Population mean content of containers of a…

Q: An automatic filling machine in a factory fills bottles of ketchup with a mean of 17.8 oz and a…

A: Given,Mean, μ=17.8 ozStandard deviation, σ=0.05 oz.Let X be a random variable represents the how…

Q: Consider the following data representing the price of plasma televisions (in dollars).…

A: The objective of this question is to calculate the relative frequency of the first class in the…

Q: 3. Use the training data of Gauss2 example (Gauss2.train). (a). Run the K-means algorithm with K = 2…

A: (a) Running K-means with K = 2 clusters:# Load the data data <- read.csv("Gauss2.train.csv") #…

Q: claims that mice ige life span of 32 months will live to be about 40 months old when 40% of the…

A: Sample size n=70Sample mean=38Standard deviation=6.8

Q: The reading speed of second grade students in a large city is approximately normal, with a mean of…

A: Normal distribution

Q: can you complete the follow up question i posted

A: Let be the rth central moment and  be the rth raw moment.To find the third central moment.It is…

Q: Suppose that the average number of miles driven by a student is 15,000 and the standard error is…

A: Here sample size is not given and we know standard error and hence use z statistic to construct…

Q: Assume that hybridization experiments are conducted with peas having the property that for…

A:

Q: An investor is considering an investment in a start-up company. She estimates that she has…

A: The formula of the expected value is,

Q: Six hundred adult Americans were asked by telephone poll, "What do you think constitutes a…

A: a.The relative frequency distribution of salaries is given.Salary ($)Relative Frequency<…

Q: Required Information How much noisier are streets where cars travel faster? An article reports noise…

A: The data on speed and noise levels is given…

Q: A particular fruit's weights are normally distributed, with a mean of 707 grams and a standard…

A: Population mean, μ =  707gramsPopulation standard deviation, σ = 29 gramsLet, X, be the particular…

Q: Boxes of Honey-Nut Oatmeal are produced to contain 15.0 ounces, with a standard deviation of 0.10…

A: It is given that, the boxes of oatmeal are produced to have 15 ounces with a standard deviation of…

Q: The acceptable level for insect filth in a certain food item is 55 insect fragments​ (larvae, eggs,…

A: The objective of the question is to understand the concept of sampling distribution and its…

Q: A random sample of medical files is used to estimate the proportion p of all people who have blood…

A: From the given information,Confidence level = 85%Margin of error =0.04

Q: A student received 40 points out of 50 in midterm 1. The mean score of the class in midterm 1 was 30…

A: The student's score went down from midterm 1 to midterm 2. Explanation:Approach to solving the…

Q: The average number of milligrams) of sodium in a certain brand of low-salt microwave frozen dinners…

A: In the certain brand of low-salt microwave frozen dinners, Mean no. of sodium,  mgStandard…

Q: Find the value of tn-1, a needed to construct a 90% upper or lower confidence bound with sample size…

A: Given that,sample size, n=12Need to determine the value of