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Use the given degree of confidence and sample data to constuct a confidence interval for the population proportion p. n=107,x=66, 88 percent

an unfair coin has a probability of coming up heads of 0.65. The coin is flipped 50 times. What is the probability it will come up heads 25 or fewer times? (Give answer to at least 3 decimal places)...

An insurance company writes policies for a large number of newly-licensed drivers each year. Suppose 40% of these are low-risk drivers, 40% are moderate risk, and 20% are high risk. The company has...

There are 52 cards in a deck. 26 are red, and 26 are black. The 52 cards make up four suits (hearts, diamonds, spades, clubs). There are 13 of each suit (ace-10, jack, queen, king). Essentially it...

If the incidence of getting a disease is estimated at 8%, how many people would contract the disease in a population of 2000?

The Por Mano Tile Company imports handmade tiles from Mexico. “Saltillo” tiles make up 67% of their imports and the rest are “talavera” tiles. Based on past experience, they expect 3.7% of the Saltillo...

In a study of fatal car accidents, some accidents were attributed to high speed or drunk driving. The probability that the fatality was attributed to high speeds was 0.57 The probability...

Find all exact times on a clock when the hands form a right angle. for example, 4:05 seems to be an answer, but it is NOT. more precisely, the time 4:05 and 5/11 minutes forms a right angle. ...

A roulette wheel has 38 slots around the rim. The first 36 slots are numbers from 1 to 36. Half of the 36 slots are red, the other half are black. The remaining 2 slots are numbered 0 and 00 and are...

a multiple choice exam consists of 20 problems, each with 5 choices, exactly one of which is correct per problem. what is the probability that you get at least half of the problems correct if you...

a large bucket contains 150 lottery tickets. one ticket is worth \$100, four tickets are worth \$50, six tickets are worth \$25, fifteen tickets win \$10, and the rest are worthless. two tickets are chosen...