The t distribution can be approximated by the Multiple Choice O z, decreases F, increases z, increases Ochi-square, decreases O distribution as the sample size.
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A: Given: μx¯=μ=17920 σ=2956 x1=17920-219=17701 x2=17920+219=18139
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Q: Suppose that Xhas a normal distribution, Find E[ekx].
A: Solution
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Q: +! ++ 800 ə47 Kq ?!un Su!yew u!!ә
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A: x x2 12.03 144.7209 11.92 142.0864 12.09 146.1681 11.94 142.5636 11.92 142.0864…
Q: Suppose Z∼N(0,1). Calculate P(Z > -0.53)
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Q: II. Choose the letter that corresponds to the correct answer in the given box below. 13. What is the…
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A: here given , mean = 7.19 cm standard deviation = 0.38 cm
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A: Given P=33.6%=0.336 n=184
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- A random group of students was selected from a large student conference to analyze their class in school Is there evidence to reject the hypothesis that the number of students is equally distributed between the four classesat a = 0.05 ?To avoid having her hours cut back at work, Bridgett must avoid performing in the lowest 40% of the distribution of workers at her job. Specifically, typical amount of items manufactured at her job form a normal distribution with µ = 100 and σ = 4. Bridgett needs to manufacture more than _____ items in order to avoid having her hours cut back at work.Cal Poly Pomona found that 15% of its students withdraw without completing Calculus I course. Assume that 30 students registered for the course. Let X be the number of students who withdraw. What distribution does X follow?
- Suppose the average price of gasoline for a city in the United States follows a continuous uniform distribution with a lower bound of $4.30 per gallon and an upper bound of $4.50 per gallon. What is the probability a randomly chosen gas station charges more than $4.35 per gallon? Multiple Choice 1.0000 0.20000.7500 0.8834Suppose the average price of gasoline for a city in the United States follows a continuous uniform distribution with a lower bound of $3.80 per gallon and an upper bound of $4.20 per gallon. What is the probability a randomly chosen gas station charges less than $4.05 per gallon? Multiple Choice O 0.425 0.458 0.929 0.625the Wall Street Journal reported that the age at first startup for 55% of entrepreneurs was29 years of age or less and the age at first startup for 45% of entrepreneurs was 30 yearsof age or more (the Wall Street Journal, March 19, 2012).a. Suppose a sample of 200 entrepreneurs will be taken to learn about the most importantqualities of entrepreneurs. Show the sampling distribution of p where p is the sampleproportion of entrepreneurs whose first startup was at 29 years of age or less.b. What is the probability that the sample proportion in part (a) will be within ±.05 ofits population proportion?
- the Wall Street Journal reported that the age at first startup for 55% of entrepreneurs was29 years of age or less and the age at first startup for 45% of entrepreneurs was 30 yearsof age or more (the Wall Street Journal, March 19, 2012).a. Suppose a sample of 200 entrepreneurs will be taken to learn about the most importantqualities of entrepreneurs. Show the sampling distribution of p where p is the sampleproportion of entrepreneurs whose first startup was at 29 years of age or less.b. What is the probability that the sample proportion in part (a) will be within ±.05 ofits population proportion?c. Suppose a sample of 200 entrepreneurs will be taken to learn about the most importantqualities of entrepreneurs. Show the sampling distribution of p where p is now thesample proportion of entrepreneurs whose first startup was at 30 years of age or more.The time it takes me to wash the dishes on a randomly selected night is uniformly distributed between 7 minutes and 16 minutes.the Wall Street Journal reported that the age at first startup for 55% of entrepreneurs was29 years of age or less and the age at first startup for 45% of entrepreneurs was 30 yearsof age or more (the Wall Street Journal, March 19, 2012).a. Suppose a sample of 200 entrepreneurs will be taken to learn about the most importantqualities of entrepreneurs. Show the sampling distribution of p where p is the sampleproportion of entrepreneurs whose first startup was at 29 years of age or less
- a national caterer determined that 37% of the people who sampled their food said that it was delicious. A random sample of 144 people are asked to sample the caterers food. If p is the sample proportion saying that the food is delicious, what is the standard error for the sampling distribution of p?Geckos are lizards with specialized toe pads that enable them to easily climb all sorts of surfaces. A research team examined the adhesive properties of 7 tokay geckos. Displayed are the toe-pad areas (in square centimeters, cm^2) for this sample. 5.6, 4.9, 6.0, 5.1, 5.5, 5.1, 7.5 which of these ranges must a value fall outside of to be considered an outlier according to the 1.5x IQR rule? A. 5.10 to 6.00 b. 4.20 to 7.35 c. 3.75 to 7.35 d. 4.90 to 7.50(a) Indicate whether the distribution of the data appears to be skewed to the left, skewed to the right, approximately symmetric, or none of these. Skewed to the left Skewed to the right Approximately symmetric None of these (b) Are there any outliers? If so, how many and are they high outliers or low outliers? If not, enter 0 in the appropriate answer box.Enter the exact answers.There is/are low outlier(s) and high outlier(s). (c) Give a rough approximation for the mean of the dataset.Round your answer to the nearest integer.mean=