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1. Find the indicated z score. The graph depicts the
1. Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1. The indicated z score is? (Round to two decimal places as needed.) 2. Assume tha… read more
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Question 1 Assume that the weight loss first month
Question 1 Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform dis… read more
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Question 1 of 20 5.0 Points The lifetimes of light bulbs of
Question 1 of 20 5.0 Points The lifetimes of light bulbs of a particular type are normally distributed with a mean of 270 hours and a standard deviation of 11 hours. What percentage of the bulbs has l… read more
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The mean gas mileage hybrid car is 56 miles per gallon.
The mean gas mileage hybrid car is 56 miles per gallon. Suppose that the gasoline mileage is approx normally distributed with a standard deviation of 3.3 miles per gallon. Round 3 decimal places. a) w… read more
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1.Medelian genetics. When Mendel conducted his famous genetic
1.Medelian genetics. When Mendel conducted his famous genetic experiments with peas, one sample of offspring consisted of 580 peas, and Mendel theorized that 25 % of them would be yellow peas. a. If M… read more
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Find the standardized variable Z if X has Mean 48 and standard
Find the standardized variable Z if X has Mean 48 and standard deviation 9. Your answer: Z = (X - ) / Open Show Work Find the standardized variable Z if X has Mean 157 and variance 36. Your answer: Z … read more
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The weight of turkeys is normally distributed with a mean of
The weight of turkeys is normally distributed with a mean of 22 pounds and a standard deviation of 5 pounds. a) Find the probability that randomly selected turkey weighs between 20 and 26 pounds. b) f… read more
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The following are the overall miles per gallon (MPG) of 2012
The following are the overall miles per gallon (MPG) of 2012 family sedans: 38 24 26 21 25 22 24 34 23 20 37 22 20 33 22 21 a. Construct a 95& confidence interval estimate for the population mean MPG … read more
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Show work.1. Redundancy in Aircraft Radios: The FAA requires
Show work. 1. Redundancy in Aircraft Radios: The FAA requires that commercial aircraft used for flying in instrument conditions must have two independent radios instead of one. Assume that for a typic… read more
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the mean incubation time for a type of fertilized egg kept
the mean incubation time for a type of fertilized egg kept at 100.8 degrees is 19 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 2 days. Wh… read more
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Total cholesterol levels of a sample of men aged 35-44 are
A total cholesterol levels of a sample of men aged 35-44 are normally distributed with a mean of 203 milligrams per deciliter and a standard deviation of 38.3 milligrams per deciliter. a. What percent… read more
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A sample of 25 different payroll departments found that the
A sample of 25 different payroll departments found that the employees worked an average of 310.3 days a year with a standard deviation of 23.8 days. What is the 95% confidence interval for the average… read more
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1. (TCO 8) For the following statement, write the null hypothesis
1. (TCO 8) For the following statement, write the null hypothesis and the alternative hypothesis. Also label which one is the claim. A car manufacturer claims that their cars get at least 35 miles per… read more
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1. Lets say the average highway miles per gallon (mpg) rating
1. Let's say the average highway miles per gallon (mpg) rating for all compact cars is 42 mpg with a standard deviation of 3 mpg. Let's also say the average highway mpg rating for all SUV's is 26 mpg … read more
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1. If Z is a standard normal variable, what is the probability
1. If Z is a standard normal variable, what is the probability that Z lies between -0.55 and 0.55? (Points : 7) 0.9000 0.4176 -0.9000 -0.4176 2. If Z is a standard normal variable, what is the probabi… read more
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Which one of the following is not an assumption of the binomial
Which one of the following is not an assumption of the binomial distribution? a. Each trial results in "success" or "failure" b. The experiment consists of n identical trials c. The probability of suc… read more
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Explain what a “sampling distribution of sample means” is.
Explain what a “sampling distribution of sample means” is. Be specific! Fill in the blanks in the statements below. The Central Limit Theorem states that as the sample size increases, the distribution… read more
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1.Assume that the weight loss for the first month of a diet
1.Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform distribution… read more
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