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• Q: Suppose a population has a mean weight of μ = 79.676 kg ÂÂand a standard deviation of Ã�Æ’=22.4943. For samples of size n= 36, what are the mean and standard deviation of the sampling distribution? Suppose a population has a mean weight of μ... Posted one year ago

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• Q: A population of values has a normal distribution with a random sample of size n = 106.2 and o = 24.1. You intend to draw 219. What is the mean of the distribution of sample means? What is the standard deviation of the distribution of sample... Posted one year ago

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• Q: Question 1For a normal distribution with mean of 100 and a standard deviation of 12, find the number of standarddeviations the raw score 76 is from the mean.Enter answer as a positive value rounded to nearest hundredth (two places after... Posted 3 years ago

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• Q: 1. Testing: H0:μ=9.1 Ha:μ<> Your sample consists of 23 subjects, with a mean of 8.9 and standard deviation of 3.77. Calculate the test statistic, rounded to 2 decimal places. t = 2. CNNBC recently reported that the mean annual cost of auto... Posted one year ago

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• Q: 1. Heights of fences are normally distributed with a mean of 54 inches and a standard deviation of 5 inches. Find the probability that one randomly selected fence is under 58 inches. (Answer must be given to four decimal places.)2.A sample of 80... Posted 4 years ago

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• Q: Which of the following code was used to make this plot? ggplot (df, aes ( x =gdp,y= score ))+ geom_point (color="red", size =4) + ggtitle("This Is My Plot") + xlab("GDP") + ylab("Happiness Score") ggp1 ot (df,aes(x=gdp,y= score ))+ geom_point (color... Posted 2 days ago
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• Q: The t distribution is used to develop a confidence interval estimate for the population mean when the population standard deviation is unknown. True False 3 points Save Answer Which one of the following statement is NOT true about a hypothesis test?... Posted 2 days ago
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• Q: Find each of the shaded areas under the standard normal curve using a TI-84 calculator. Round the answers to four decimal places. Part 1 of 4 0.61 The area of the shaded region is Part 2 of 4 -2.52 The area of the shaded region is 0.58 0.98 The area... Posted 2 days ago
• Q: Construct a 99% confidence interval for the mean number of books people read and interpret the result. Select the correct choice below and fill in the answer boxes to complete your choice. (Use ascending order. Round to two decimal places as needed.)... Posted 2 days ago