The Central Limit Theorem may be used to conclude that the sampling distribution of me 20. population is approximately normal provided that: a) the sample mean is 30 or more b) the standard error is 30 or more the standard score is 30 or more c)

Q: for the two groups is shown in the back-to-b port the claim that the new method of teachi pes?…

A: For the given data : For Sample 1 x̄1 = 56.68 s1 = 9.1594 n1 = 19 For…

Q: If the standard error of the sampling distribution of the sample proportion is 0.0229 for samples of…

A: Given data the sample proportion= 0.0229  sample size (n) =  400 To find: population proportion must…

Q: Suppose it is reported that 66 % of people subscribe to a cable or satellite television service. You…

A: As per our guidelines, we are allowed to answer first three sub-parts . Thanks   population…

Q: The appropriate form of the test-statistics in conducting hypothesis testing about the population…

A: Assume that p as the true proportion and n is the sample size.

Q: According to the Central Limit Theorem, The traditional sample size that separates a large sample…

A: Central limit theorem:   If the size of the samples taken from the population are sufficiently…

Q: A simple random sample size of n=81 is obtained from a population that is skewed right with u=81 and…

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Q: (a) If we have a distribution of x values that is more or less mound-shaped and somewhat symmetric,…

A: it suggest that if our sample size is greater than or 30, then we can apply normal approximation to…

Q: (a) Define the sampling frame and elementary unit.

A: We need to define sampling frame and elementary unit.   Note: According to Bartleby expert…

Q: Suppose x has a distribution with μ = 45 and σ = 14. Find P(41 ≤ x ≤ 46).

A: The probability between 41 and 46 is,

Q: To apply the binomial distribution properly (P+Q) must equal 1.00. a. False O b. True O c.…

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Q: Determine whether the hypothesis test involves a sampling distribution of means that is a normal…

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Q: If the distribution of the population is bimodal, then the sampling distribution for the sample…

A: To identify the statement whether it is true or false. If the distribution of the population is…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c=0.95,…

A: Given:  Confidence level c=0.95  Standard deviations=9.3 and margin of error E=1  Then to find…

Q: ind the minimum sample size n needed to estimate μ for the given values of​ c, σ​, and E.   c=0.95​,…

A: Given that, Critical values: Using the z-table, the critical value at 95% confidence level is

Q: or r=0.7789 and sample size=10, the corresponding t value is:"     2.512     3.512     3.034…

A: r = 0.7789 , n = 10

Q: You are given the following hypotheses H 0 :p=0.3 H A :p not equal 0.3 We know that the sample…

A: Let p^ denotes the sample proportion. The z-score is, z=p^-pp1-pn=p^-0.30.31-0.390=p^-0.30.0483 The…

Q: Based on the Central Limit Theorem, which statement (s) is/are TRUE? A. The sampling distribution of…

A: Here, we know that mean of all observations tends to normal distribution then called central limit…

Q: For any sample of size 100, the population mean, the mean of the sampling distribution for the…

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Q: Suppose a simple random sample of size n= 200 is obtained from a population whose size is N= 20,000…

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Q: Find the minimum sample size n needed to estimate μ for the given values of​ c,σ​,and E.…

A: Given, population standard deviation(σ)=8.5Margin of error(E)=1confidence level(c)=0.95then…

Q: Suppose that X follows a geometric distribution P(X = x) = p(1 – p)*-1 and assume a i.i.d. sample…

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

Q: Suppose x has a distribution with μ = 26 and σ = 25. (a) If a random sample of size n = 35 is drawn,…

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Q: Suppose x has a distribution with μ = 18 and σ = 10. (a) If a random sample of size n = 37 is drawn,…

A: In this question, it has been given that X follows a distribution with mean 18 and standard…

Q: Suppose a simple random sample of size n=81 is obtained from a population with μ=76 and σ=18. ​(a)…

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Q: Which of the following is NOT a condition for inference when applying a 1 proportion z-test pa 5…

A: Here we have to identify which of the following is not a correct option for applying a 1 proportion…

Q: 7 If the standard error of the sampling distribution of the sample proportion is 0.03266 for samples…

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Q: Since the sample size is than 5% of the population size and np(1-p) =2 10, the distribution of p is…

A: HERE GIVEN, p = 0.80 n= 100 here

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c= 0.98, o…

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Q: The central limit theorem can be used to determine the shape of a sampling distribution in which of…

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Q: Suppose 50% of the bumblebee bats are female. 25 bumblebee bats are selected at random and the…

A: Given that n =25 , p= 0.5

Q: Why is it necessary to check that np 25 and nq 25? O A. It is necessary to check that np25 and nq 2…

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Q: if x1, X2, ., X, be a random sample from Bin(4,0). ........ is T = x UMVUE ? Justify your answer.

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Q: 8.24 a. For which of the sample sizes given in the previ- ous exercise would the sampling…

A: 8.24) The sample sizes are given as 10, 20, 30, 50, 100 and 200, respectively. Assume that pˆ is the…

Q: Which sampling destribution should be used and why? O A. Use atsampling distribution because the…

A: Given: Sample size n = 7 Sample mean = x bar = 20mpg sample standard deviation = s = 3mpg level of…

Q: According to a dental​ association, 71​% of all dentists use nitrous oxide​ (laughing gas) in their…

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Q: 1. These are the lengths of 10 tuna fish landed at Sohar, Muttrah and Sur Sohar. 100 90 110 120 T…

A: The lengths of 10 tuna fish landed at sohar, muttrah and sur are given, Sohar 100 90 110 120 130…

Q: If We can assert with 95% that the maximum error is 0.05 and p= 0.2 ,find the sample size..

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Q: Suppose a simple random sample of size n=64 is obtained from a population with μ=83 and σ=16. ​(a)…

A: Given : μ = 83 σ = 16 n = 64 a) Sampling distribution of x. μx = 83 σx = 1664 σx = 2 X ~ N(μx=83,…

Q: According to a dental association, 68% of all dentists use nitrous oxide (laughing gas) in their…

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Q: Indicate which of the following situations involve sampling from a finite population andwhich…

A: a. Finite population: If the population is countable, then the population is termed as finite…

Q: The Central Limit Theorem says O A. When n 30, the sampling distribution of x will be approximately…

A: Central limit theorem is given.

Q: Find the minimum sample size n needed to estimate μ for the given values of​ c, σ​, and E.…

A: Given: Confidence level = 95% Standard deviation σ = 9.8 Margin of error E = 2 Formula Used: n =…

Q: Which of the following statements is correct for the sampling distribution of the proportion for…

A: here given , Consider the sampling distribution of the proportion of athletes that graduate for…

Q: In the distribution with u = 35 and o = 6, a score of X = 50 correspond to z =

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Q: According to the central limit theorem, for samples of size 64 drawn from a population with u = 800…

A: Solution: From the given information, µ=800 and σ=56.

Q: For a normally distributed population with a mean of 50 and a SD of 10, we would expect 95% of the…

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Q: n each of the following cases, indicate whether the central limit theorem will Apple to describe the…

A: The sampling distribution of the sample proportion is approx normal  If n×p ≥5np≥5n×(1-p)≥5

Q: Find the minimum sample size n needed to estimate μ for the given values of​ c, σ​, and E.…

A: Solution : Given : c=0.90​, σ=6.7​, E= 2 zα2 = 1.645 n = zα2 ×σE2