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A) A cookie company has a double-feature box of cookies. These boxes come with two types of cookies; oatmeal and chocolate chip. However, the proportion of cookies of each type varies. A data analyst working for the company wonders if there is a tendency for the boxes to have more of one type of cookie than the other. In order to investigate, he selects 58 boxes of double feature oatmeal/ chocolate chip cookies and counts the number of each type of cookie. he finds out that in his sample of 58 boxes, the proportion of chocolate cookies os 0.36. What is the standard deviation of the sampling proportion of chocolate chip cookies?
B) On average, 40% of guests at a restaurant order the chef's steak special. The chef is expecting 160 tomorrow evening. How many of those meals should he plan on serving in order to be 95% sure (2 standard deviations above the mean) of having enough steaks on hand to meet customer demand?
What is the conditional mean of Y, given X?- What are the uses of a regression model?- What are the purpose and meaning of the error term in regression?
If, in an analysis of variance, you find that MSTR is greater than MSE, why can you not immediately reject the null hypothesis without determining the F ratio and its distribution? Explain.
1. approximately 22 of 1000 fish in a pond are infected with a skin disease. a random sample of 20 fish is selected.
Accounting and Machiavellianism. Behavioral Research in Accounting (January 2008) published a study of Machiavellian traits in accountants.
An article reports that when each football helmet in a random sample of 44 suspension-type helmets was subjected to a certain impact test, 25 showed damage.
Consider selecting one card at a time from a 52-card deck. What is the probability that the first card is from the suit of hearts and the second card is also from the suit of hearts? (Note there are 13 cards from the suit f hearts in a deck of ca..
A bag of 32 tulip bulbs contains 11 red tulip? bulbs, 11 yellow tulip? bulbs, and 10 purple tulip bulbs.
in one trip of a cruise ship 341 of the 3745 passengers became ill with norovirus. at about the same time 260 of the
1. a bus starts with eight people 2 of which are jack and diana and stops at 12 locations. assuming nobody else gets on
Assume that if a women carries the gene for haemophilia, any child has a 50% chance of inheriting that gene, and that is always clear whether or not a son has inherited the gene,
A high-speed train is under development in Texas [21] with a design based on the French Train a Grande Vitesse (TGV). Train speeds of 186 miles per hour are foreseen. To achieve these speeds on tight curves, the train may use independent axles com..
Characteristics of ice melt ponds. The National Snow and Ice Data Center (NSIDC) collects data on the albedo, depth, and physical characteristics of ice melt.
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