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MATH SOLVE
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In Sludge County, a sample of 50 randomly selected citizens were tested for pinworm. Of these, 11 tested positive. The CDC reports that the U.S. average pinworm infection rate is 12%. Test the claim that Sludge County has a pinworm infection rate that is greater than the national average. Use a 0.05 significance level. (a) What is the sample proportion of Sludge County residents with pinworm
General
2 months ago
Please help! I am so confused
General
2 months ago
On Texas Avenue between University Drive and George Bush Drive, accidents occur according to a Poisson process at a rate of three accidents per week. (a) What is the probability that a given day has no accidents? (b) Whenever there is an accident, the risk is 1 in 8 that personal injury will result. What is the probability that February (which has four weeks) has at least one accident with a personal injury?
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2 months ago
The quality control manager at a computer manufacturing company believes that the mean life of a computer is 83 months, with a standard deviation of 9 months. If he is correct, what is the probability that the mean of a sample of 78 computers would be less than 82.06 months? Round your answer to four decimal places.
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2 months ago
The marginal cost of a product can be thought of as the cost of producing one additional unit of output. For example, if the marginal cost of producing the 50th product is $6.20, it cost $6.20 to increase production from 49 to 50 units of output. Suppose the marginal cost C (in dollars) to produce x thousand mp3 players is given by the function Upper P (x )equals x squared minus 120 x plus 8600. A. How many players should be produced to minimize the marginal cost?
General
2 months ago
dan will rent a car for the weekend. he can choose one of two plans. the first plan has an initial fee of $73.98 and costs an additional $0.07 per mile driven. the second plan has an initial fee of $0.12 per mile driven. how many miles for the two plans to cost the same?
General
2 months ago
Suppose that a hypothesis test is performed and the p-value is greater than alpha but less than beta. Then you should Question 6 options: 1) fail to reject the alternate hypothesis 2) all of the other answers (except for ""none of the other answers"") 3) none of the other answers 4) reject the null hypothesis 5) fail to reject the null hypothesis 6) accept the null hypothesis 7) reject the alternate hypothesis
General
2 months ago
two types of tickets were sold for a concert held at an amphitheater. Tickets to sit on a bench during the concert cost $75 each, and tickets to sit on the lawn during the concert cost $40. Organizers at the concert announced that 350 tickets had been sold and thay $19250 had been raised through ticket sales alone. which of the following systems could be used to find the number of tickets for bench seats, B, and the number of tickets for lawn seats, L, that were sold for the concert?
General
2 months ago
The Fox TV network is considering replacing one of its prime-time crime investigation shows with a new family-oriented comedy show. Before a final decision is made, network executives commission a sample of 500 viewers. After viewing the shows, 200 indicated they would watch the new show and suggested it replace the crime investigation show. Estimate the value of the population proportion.
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2 months ago
In the game of roulette, a player can place a $44 bet on the number 22 and have a StartFraction 1 Over 38 EndFraction 1 38 probability of winning. If the metal ball lands on 22, the player gets to keep the $44 paid to play the game and the player is awarded an additional $140140. Otherwise, the player is awarded nothing and the casino takes the player's $44. What is the expected value of the game to the player? If you played the game 1000 times, how much would you expect to lose?
General
2 months ago
what formula can be used to describe the sequence ?
General
2 months ago
what is the multiplicative rate of change of the function described in the table ?
General
2 months ago
A certain computer can perform 10 to the 5th power calculations per second. How many calculations can it perform in 10 seconds?
General
2 months ago
Each member of a four-member relay team ran 100 meters during the relay. The time, in seconds, for each member is shown below. 13.9 s, 12.85 s, 14.82 s, 12.74 s Which expression finds the total time for the relay team?
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2 months ago
A man rides a bicycle a distance of 48 miles in a certain amount of time. If the man increased his speed by 2 miles per hour, he reaches his destination four hours earlier. Find his usual speed. Show Work!
General
2 months ago
a right triangle has one angle that measures 23 degress.The adjacent leg measures 27.6 cm and the hypotenuse measures 30 cm.What is the approximate area of the triangle?Round to the nearest tenth.Area of a triangle =1/2bh
General
2 months ago
Circle the step where the error has occurred. Explain why it is an error. Given: 2(10−13)=−34+60Step 1: Distribute20−26 = −34+60Step 2: Addition Property of Equality−26 = −34+80Step 3: Addition Property of Equality8=80Step 4: Division Property of Equality =10
General
2 months ago
You reach into a bag of coins and withdraw two coins without replacement. What is the probability you withdrew a nickel and then a dime if the bag held five pennies, ten nickels, and four dimes?
General
2 months ago
Add 3/4+(−2 1/2) using the number line.Select the location on the number line to plot the sum
General
2 months ago
Larry mixed 15 grams of salt with 210 grams of a 5% salt solution in water. What is the percent of salt in his new solution?
General
2 months ago
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