What sample size should you gather to achieve a 0.5 hour margin of error? Round your answer up to the nearest whole number. n= bacteria

Q: NOTE Submit Question VOTE VOTE Based on this, estimate what proportion of the voting population (p)…

A: The objective of this question is to estimate the proportion of the voting population that prefers…

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A: It is required to test the claim that the mean recovery time of all patients using the old tablet is…

Q: In Revenue Sharing supply contracts, what are the impacts on the following variables? A) Mean and…

A: In revenue-sharing supply contracts, the impacts of the variables are needed to be determined.

Q: & A survey asked bank customers how often they use the bank's ATM. The results are summarized in the…

A: Age(Years)OftenNot oftenBelow 254090Between 25 and 4012060Over 4080140

Q: A manuscript is sent to a typing firm consisting of typists A, B, and C. If it is typed by A, then…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: Fill in the blanks. Source of Variation Factor A Factor B Interaction AB Error Total Sum of Squares…

A: The provided incomplete ANOVA table is as follows:Source of VariationSum of SquaresDFMean SuaresFF…

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A: We have given a figure of the frequency histogram.In this case, the data provided is about the…

Q: (a) Find the probability mass function of (X₁ + X₂). (b) Using the result of (a), guess what the…

A: The random variable which takes an integer value is called a discrete random variable.The geometric…

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A: The provided information is as follows:The probability density function for the random variable  is…

Q: Let edu denote years of education, exper years of experience, wage denote wages measured in dollars…

A:

Q: A bag contains 4 red marbles and 6 blue marbles. A marble is drawn and then replaced. This is done…

A: Comment: As per the our company guidelines we are supposed to answer only three subparts. Kindly…

Q: Q3. Identify the sampling technique used in the study. (a) In a large school district, all teachers…

A: The objective is to identify the sampling technique used for each of the given scenarios.

Q: Vehicle speed on a particular bridge in China can be modeled as a normal distribution. If 5% of all…

A: For the given normal distribution, we are given thatP(X < 39.15) = 0.05P(X > 73.94) = 0.10We…

Q: The Jones family was one of the first to come to the U.S. They had 9 children. Assuming that the…

A: Given,Sample size, n = 9Probability of success, p = 0.5

Q: A sociologist has estimated that 35% of workers live paycheck-to-paycheck. For a random sample of…

A: It is estimated that 35% of workers live paycheck-to-paycheck.Sample size Sample proportion

Q: A health statistics agency in a certain country tracks the number of adults who have health…

A: Given,22.4% of people in the county are under age 18. That is, P(under age 18) = 22.4% = 0.224And…

Q: b. In 2018, a sample of 300 in-store shoppers showed that 44 paid by debit card. The results shown…

A: The given data is as follows: YearShoppers SurveyedShoppers Paying by Debit Card201830044201940072

Q: Test scores: Scores on a statistics exam had a mean of 84 with a standard deviation of 13. Scores on…

A:

Q: In response to concerns about nutritional contents of fast foods, McDonald's has announced that it…

A: Given,The company claims that 97 out of 100 people cannot detect a difference in taste between the…

Q: A hich school principal is interested in learning if hours studied and GPa earned related of a group…

A: Let x= Hours of studying  and y=GPA

Q: We will predict hourly income based on the number of years of experience. Use an alpha level of 5%…

A: Given information:n= 11 observation k= 1 independent variable

Q: In the following data, is the average number of hours the student spent working on math each week…

A: The objective of this question is to find the predicted value for the final grade when a student…

Q: In a study of 120 post-menopausal women on hormone replacement therapy (HRT), there was a mean…

A: sample size(n)=120Mean ()=131standard deviation (s)=16.5confidence level=95%

Q: How many factors (i.e., independent variables) are there in a 2 x 3 x 4 x 4 factorial design 02 0 3…

A: The design is a 2 x 3 x 4 x 4   factorial design

Q: With the availability of online gaming and the social relationships that can thereby develop,…

A: Online gaming and social relationships' availability can develop LGBT players using gameplay to…

Q: An adventure company runs two obstacle courses, Fundash and Coolsprint. The designer of the courses…

A: Given that an adventure company runs two obstacle courses, Fundash and Coolsprint.For Fundash:,,…

Q: Outcome Efficacy Knowledge Rape myth acceptance Illinois Rape Myth Date Rape Myth Bystander…

A: There are three groups : Control group ( not participate ) Attend one session of programAttend three…

Q: The graph of a normal distribution is shaped like an exponential function the letter N a bell a…

A: The question is asking about the shape of the graph of a normal distribution. A normal distribution,…

Q: An educational psychologist thinks that the children in her gifted program have higher IQs than the…

A: Population mean μ=100Population standard deviation σ=15Sample mean x¯=123

Q: Two hundred observations of a mean zero AR(2)(2) model produced the following sample variance and…

A: The sample variance and sample ACFs produced by  observations of a mean   model.The method of moment…

Q: A test for "independence." You want to know if death within five years from a certain type of cancer…

A: The random variable under study is the  Gender The state of the patientsBoth random variables the…

Q: The average price of homes sold in the U. S. in 2012 was $235, 000. A sample of 86 homes sold in…

A: Given Information:Sample size (n) = 86Sample mean () = $246000Population standard deviation () =…

Q: Let f, g be probability densities such supp(f) supp(g). show yes i.i.d. L(g) then X₁,..., Xn Wi…

A: Success of the scaling theory in correctly predicting various exponent identities strongly supports…

Q: The data set consists of information on 3600 full-time full-year workers. The highest educational…

A: The dataset indicates the dependent Variable: average hourly earnings (AHE) Regressor and the…

Q: The September energy consumption levels for single-family homes are found to be normally distributed…

A: The objective of this question is to find the probability that the September energy consumption…

Q: FRQ #1: The manager of a local fast-food restaurant is concerned about customers who ask for a water…

A: 1) Given,Sample size, n = 80Number of successes in sample, x = 23

Q: Draw a graph for the standard normal distribution. Label the horizontal axis at values of -3, -2,-1,…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: A consumer products testing group is evaluating two competing brands of tires, Brand 1 and Brand 2.…

A: The question is about confidence interval.Given :To find :Construct confidence interval for .

Q: 13. The following table shows the age (in months) and the number of hours slept in a day of 10…

A: You have attached multiple questions in one question ,We can provide one solution in one…

Q: Scores for a common standardized college aptitude test are normally distributed with a mean of 502…

A: The objective of the question is to find the probability that a student's score is at least 608.1…

Q: The data below are the number of absences and the final grades of 9 randomly selected students from…

A: The data shows the number of absences and the final grades of 9 randomly selected students from a…

Q: a) Find mean, median, and standard deviation of the data. What can you say about the shape of this…

A: The stem and leaf plot of the aptitude score is given below.Given that,Sample size StemLeaves465963…

Q: n a randomly selected sample of women ages 20-34, the mean total cholesterol level is 188 milligrams…

A:

Q: -An after-school club consists of 10 juniors and 12 seniors. If 2 students are chosen at random to…

A: The first part of the question is asking for the probability that both students selected are seniors…

Q: A computer while calculating correlation coefficient between two variables X and Y from 25 pairs of…

A: The question is about correlation.Given :No. of pairs ( n ) = 25Incorrect pairs : ( 6,14 ) and ( 8,6…

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 13.4…

A: The objective of this question is to find the probability that the mean lifespan of 4 randomly…

Q: BETWEEN WITHIN . TOTAL . COMPLETE THE ANOVA TABLE. TEST AT 05 SIGNIFANCE • • . DF SS MS F 80 20 29…

A: The question is about ANOVA.Given :DFTotal = 29SSBetween = 80SSTotal = 180MSbetween = 20

Q: If a researcher found a significant interaction between Factor A and Factor B, what does this mean…

A: The objective of the question is to understand the meaning of a significant interaction between two…

Q: 1. a. A major department store chain manager believes that more than one third of its credit card…

A: The given data is as follows:Sample size, Number of account holders spending less than or equal to…

Q: The Virginia Highway patrol is interested in determining if concentration affects driving speed.…

A: The objective of the question is to identify the most appropriate statistical test to determine if…