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The weight of the eggs produced by a certain breed of hen is Normally distributed with mean 65 grams & standard deviation 5 grams.
1) Calculate the probability that a randomly selected egg weights between 62.5 g and 68.75 g. Think of cartons of such eggs as SRSs of size 12 from the population of all eggs.2) Calculate the probability that the mean weight of a carton falls between 62.5 g and 68.75 g.3) Calculate the probability that the weight of the carton is more than 804 grams.4) Did you need to know that the population distribution of egg weighs was Normal in order to complete parts 1 or 2 or 3? Justify.5) Suppose you obtain a carton of eggs that is supposed to be from this type of hen, and only two of the eggs weigh between 62.5 g and 68.75 g. What would you conclude about whether the eggs came from this type of hen? Give appropriate statistical evidence to support your answer.
He is equally likely to select any. Billy leaves last and takes the one remaining hat. Let x be the number of cowboys who end up with the correct hat.
Compare the standard deviation for the heights of males and the standard deviation for the heights of females in the class. Compare the values and explain what can be concluded based on the numbers.
The average monthly cost per household for groceries in kentucky is $625/mo with a standard deviation of $125/mo. The average age of the memebers in each of the households in Kentucky is 22.5 yr with a standard deviation of 5.175 yr. Which data se..
Set up the following null and alternative hypotheses for both factors and their interaction. You should have three verbal statements, not symbolized statements.
The boys with certificates of recognition. What time would the boys need to beat in order to earn a certificate of recognition from the fitness association?
Pollsters try to determine whether or not a person is a "likely voter" before they count their opinion in a poll. If we assume 40% of the registered voters will actually vote, in a random sample of 100 registered voters we can be 95% confident tha..
A cognitive psycholgist believes that a particular drug improves short-term memory. The drug is safe, with no side effects. An experiment is conducted in which 8 ramdomly selected subjects are given the drug and then given a short time to memorize..
Suppose that you select a 50 families sample. Which is the form expected from the distribution of the average or median of the sample?
A student must choose one of the subjects, art, geology, or psychology, as an elective. She is equally likely to choose art or psychology and twice as likely to choose geology.
Find the least squares regression line by deciding which are the appropriate independent and dependent variables and calculating the equation of the line. State equation of line.
However, due to the variability in the traffic situation every morning, the standard deviation of these commutes is 5 minutes. Jenn has to be at work by 8:30 A.M. every morning.
Select an activity you do on a regular basis (e.g., cooking a meal, cleaning the house, doing homework, etc.) and discuss how you could apply statistical quality control to improve the quality of the output of the activity you choose.
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