In the 2004 election in Utah, 66% of all Utah voters voted for Amendment 3, the marriage amendment. Suppose a Statistics major decided to predict the sampling distribution of p̂ for samples of size 100 for this situation. What would happen to the standard deviation of the sampling distribution of p̂ if samples of size 500 were taken instead of samples of size 100?   The standard deviation would stay the same The standard deviation would increase The standard deviation would decrease

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Q: Please help me fix problem A, B ,C , Thank you!

A: Obtain the mean and standard deviation for the number of people in the group of 140 that don’t know…

Q: If a population has a mean of 228.8 and a standard deviation of 35.5 then a sampling distribution…

A: Given that, mean is 228.8 and standard deviation is 35.5. We will use z-standard normal…

Q: If a population has a standard deviation σ of 36 units, what is the standard error of the mean if…

A: The population standard deviation is 36.

Q: A population has a standard deviation of 25 and a mean of 300. Given a random sample of size 100,…

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Q: An IQ test is designed so that the mean is 100 and the standard deviation is 16 for the population…

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Q: A significant number of students completed a Statistics exam, and the final marks had a mean of 70…

A: Answer - A significant number of students completed a Statistics exam, and the final marks had a…

Q: Example 2:A study was conducted that found the average number of followers for a Twitter account was…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Dr. Samwell Tarly wants to estimate the number of books checked out of the library in the past year.…

A: It is given that the mean is 10,000 and the standard deviation is 10.

Q: According to one pollster, 56% of children are afraid of the dark. Suppose that a sample of size 28…

A: The standard deviation id the sampling distribution of the sample proportion is represented as and…

Q: The population mean is 75 and the population standard deviation = 6. Random samples (containing 16…

A: Given , The population mean ( n )   = 75 ,  the population standard deviation ( σ )= 6

Q: A sample of 90 items has mean 55 and standard deviation 3. A second sample of 110 items has mean 60…

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Q: You have a dataset with a mean of 50 and a standard deviation of 5. What is the coefficient of…

A: From the provided information, Mean (x̄) = 50 Standard deviation (s) = 5

Q: The population has a mean of 14 and a standard deviation of 3. The sample size of your sampling…

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Q: Suppose that a study of elementary school students reports that the mean age at which children begin…

A: The provided information are: Population mean (µ) = 5.7 Population standard deviation (σ) = 1.2…

Q: Suppose that we randomly select a sample of 80 measurements from an infinite population having a…

A: 1) Given: Mean μ=30 Standard deviation σ=5 Sample size n=80

Q: A parenting magazine reports that the average amount of wireless data used by teenagers each month…

A: State the null and alternative hypotheses for the test. Fill in the blank below. H0: μ=6:…

Q: What proportion of the students scored lower than 80 if the distribution of these grades can be…

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Q: In a population, the mean is known to be 1.27 and the standard deviation is known to be 0.351.…

A: The population mean is 1.27; μ=1.27 The population standard deviation is 0.351;σ=0.351 The sample…

Q: According to data from the 2010 United States Census, 64.2% of Americans in Susanville, CA were…

A: 64.2% of Americans in Susanville, CA were male, p = 0.642 Sample size, n = 100 Among the sample, 54…

Q: Suppose a population has a mean happiness score of 75 and a standard deviation of 15. Researcher A…

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Q: Suppose you know that the distribution of sample proportions of nonresidents in samples of 200…

A: Let p^ denotes the sample proportion which follows normal distribution with mean 0.46 and standard…

Q: How many business students must be randomly selected to estimate the mean monthly earnings of…

A: From the given information,Confidence level ,C = 0.95 Using formula,

Q: ording to one pollster, 47% of children are afraid of the dark. Suppose that a sample of size 20 is…

A: Consider "p" be the true proportion which represents the proportion of children that are afraid of…

Q: In this problem we look at bags of potato chips. There are three weights we consider. Let us call…

A: Hi! Thank you for the question. As per the honor code, we are allowed to answer three sub-parts at a…

Q: Suppose you were to take samples of size 100 from a population with a mean of 12 and a standard…

A: The formula of the standard error of the mean is,

Q: In one town, the number of pounds of leafy greens consumed per person per year has a mean of 10…

A: (1) Standardized z-score:   The standardized z-score represents the number of standard deviations…

Q: One sample of n = 4 scores has a mean of M = 12, and a second smaple with n = 6 scores has a mean of…

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Q: A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Listed…

A: From given data we have : 0.50,0.71,0.11,0.9,1.30,0.56,0.95

Q: A population of scores has u=55 and o=15.  if 5 points are subtracted from every score in the…

A: The given data is μ = 55σ = 15 Suppose x1, x2, x3, x4, ..., xn are the data points…

Q: If research samples 28 college students and wants to compare the sample mean of 8 to the population…

A: From the provided information, Sample size (n) = 28 Sample mean (x̄) = 8 Population mean (µ) = 12…

Q: The percent fo Coloradans that own a Subaru is 56%. If you were to take a random sample of size 70,…

A: We have given that,  Let X be the random variable from binomial distribution with probability (p) =…

Q: Suppose a claim is made that the mean age of members of a golf club is 52 years. The population…

A: Given: μ = 52 σ = 6 n = 50 X = 56 Formula Used: Test-statistic Z = X-μσn

Q: A particular fruit's weights are normally distributed, with a mean of 751 grams and a standard…

A: Draw the normal curve and shade the area of 0.17 to the right of z under the normal curve. Since…

Q: Suppose Diane and Jack are each attempting to use a simulation to describe the sampling distribution…

A: We have given that   Mean(µ) = 70Standard deviations (σ) = 10

Q: Suppose the test scores in a class are normally distributed with a mean of 70 and a standard…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: A grocer finds that the cantaloupes in his store have weights with mean 0.7 kg and standard…

A: Given, Mean weight of cantaloupes is 700 gm. Standard deviation is 53 gm

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.