In a simple random sample size of 89, there were 40 individuals in the category of interest. It is desired to test —- H0:P=0.46 VS H1:P

Q: Use the random sample data to test the claim that more than 34% of local residents have access to a…

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Q: Describe the procedures for obtaining a random sample. step by step

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Q: When I am taking a Simple Random Sample, what do I do if say I take 23 samples from a range of 93…

A: The random number table is used to obtain the sample random sample which provides each member of the…

Q: Given a binomial random variable x and p = 0.2, find the mean for a sample size of 15.

A: Given data, p=0.2 n=15 What is the mean?

Q: What is the difference between selecting a member at random from a finite population and taking a…

A: A simple random sample is a random sample selected by a method in which all possible samples, of a…

Q: A food service director for a national corporation suspects that people are more likely to order…

A: a) Null Hypothesis: H0: The salad sales are not uniformly distributed across the days of the week.…

Q: A sociologist wants to know the proportion of adults with children under the age of 18 that eat…

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Q: In a random sample of 76 people, 38 are classified as​ "successful."   a. Determine the sample​…

A: Given that in a random sample of 76 people, 38 are classified as​ "successful."  a) The sample​…

Q: As the sample size increases, what happens to the p-value associated with a given sample mean?

A: In statistics, the sample size is the no of units present in a sample that is drawn from a…

Q: What is the formula to be used to determine the total possible random samples?

A: Let the population size be N Sample size be n

Q: illustrates the effect of sample size on the power of a two-sample t test?

A: A test of hypothesis consists of 2 hypotheses: the null, H0, and the alternative, H1.   For a sample…

Q: When you are conducting the t test, the sample size must be greater than .30

A: We have to find the statement is true or false....

Q: In a 4-week study about the effectiveness of Do you Feel Better? using magnetic insoles to treat…

A: n1 = 52, x1 = 15, p1 = 0.288 n2 = 48, x2 = 18, p2 = 0.375

Q: In a simple random sample of size 76, there were 34 individuals in the category of interest. Compute…

A: Given: Sample size (n) = 76 Let x be the number of individuals in the category of interest

Q: For a one sample t-test with sample size 58, the degrees of freedom is:

A: Here AS PER POLICY I SHOULD HAVE TO CALCULATE FIRST MAIN QUESTION EVEN THOUGH I HAVE CALCULATED 2…

Q: Which do you think would have more variation: the GPA's of students in an honors college with a…

A: There are two cases: 1. the GPA's of students in an honors college with a prestigious university, 2.…

Q: In a 4-week study about the effectiveness of Do you Feel Better? using magnetic insoles to treat…

A: The total n1=55 subjects wore magnetic insoles out of which only x1=15 subjects feel better. And…

Q: A newspaper article claims that 92 percent of teens use social media. To investigate the claim, a…

A: Conditions to use a one sample proportion z test: Conditions to use a one sample proportion z test :…

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A: Let p denotes the population proportion of driver fatalities related to alcohol. The test is that…

Q: Twenty years ago, 46% of parents of children in high school felt it was a serious problem that high…

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Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

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

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Q: A simple random sample of 28 observations was taken from a large population. The sample mean equaled…

A: It is given that, a simple random sample of 28 observations was taken from a large population with…

Q: an independent-samples t test, you will usuall

A: the test statistic for independent-samples t test = μ1-μ2-0combined standard deviation

Q: Assume you did an experiment with 3 groups and 16 subjects per group. The sample variances in the…

A: It is given that, an experiment with 3 groups and 16 subjects in per group. Thus,

Q: How many subjects participated in an independent-samples t-test if a researcher reports, t (20) =…

A: Given information- We have given an independent-samples t-test. The value of test statistics is- t…

Q: Twenty years ago, 54% of parents of children in high school felt it was a serious problem that high…

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Q: Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high…

A: The proportion is p0=0.52 The total number of samples n=700 The value of…

Q: 10. In two large populations there are 30% and 25% respectively of fair haired people. Is This…

A: Given that  For first population  p1=30%=0.30 Sample size n1=1200 For second population  p2=25%=0.25…

Q: Twenty years ago, 56% of parents of children in high school felt it was a serious problem that high…

A: Using the given data fill the blanks

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A: State the hypotheses. That is, there is no evidence that population proportion of driver fatalities…

Q: In a survey of 480 drivers from the​ South, 393 wear a seat belt. In a survey of 350 drivers from…

A: Given : x1= 393 n1= 480 x2= 293 n2= 350 significance level, 0.09

Q: A school board would like to determine whether there is a difference in average SAT scores for…

A: Paired data is used when experimental Unit is same on which two different treatment are apllied

Q: Twenty years ago, 54% of parents of children in high school felt it was a serious problem that high…

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Q: A researcher selects all of the possible samples with n = 8 scores from a population and computes…

A: The mean of the sampling distribution of the sample mean is an unbiased estimator for population…

Q: Twenty years ago, 47% of parents of children in high school felt it was a serious problem that high…

A: Given that  Sample size n =900 Population proportion p=47%=0.47

Q: Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high…

A: The value of p0 is 0.52 and the sample size n is 800.

Q: The CEO of an airline estimates that 15% of all flights arrive late. How many flights must he…

A: Given Information: Proportion p=0.15 Confidence level = 96% = 0.96 Significance level α=1-0.96=0.04…

Q: Why can we consider the sample mean in random samples of size n from a given population to be a…

A: We consider the sample mean in random samples of size n from a given population to be a random…

Q: Twenty years ago, 54% of parents of children in high school felt it was a serious problem that high…

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Q: Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high…

A: Given : n = 700 p = 0.52

Q: A team of researchers would like to determine whether the number of households that use the internet…

A: The correct option is ‘these samples are independent’.Explanation: The two samples which are derived…

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: In a random sample of 68 people,17 are classified as​ "successful." a. Determine the sample​…

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Q: What is the P(t > -0.4) with a sample size of 13.

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Q: Suppose in a random sample of 61 individuals, 28 are considered success. Compute the sample…

A: Given x=28 n=61

Q: If samples of a fixed size N are drawn randomly and with replacement from the same population of…

A: If samples of a fixed size N are drawn randomly and with replacement from the same population of…

Q: Twenty years ago, 57% of parents of children in high school felt it was a serious problem that high…

A: Denote p as the true proportion of parents, who think that high school students were not being…

Q: A telephone company claims that more than 15% of its customers have at least two telephone lines.…

A: It is given that Sample size n = 250 Number of customers who have at least two telephone lines, X =…

Q: In the article “Explaining an Unusual Allergy,” appearing on the Everyday Health Network, Dr. A.…

A: Given that, Sample size n=500 Sample proportion of U.S. asthmatics who were found to be allergic to…