it has been estimated that 85% of all people in San Diego watched the Chargers in...
it has been estimated that 85% of all people in San Diego watched the Chargers in the Super Bowl. If 300 randomly selected people in San Diego are asked if they watched the chargers, what is the probability that more than 90% say yes?
Homework Answers
Using central limit theorem to proportions,
P(
< p ) =
P( Z < - p / sqrt(
p ( 1 - p) / n) )
So,
P( > 0.90)
= P( Z > 0.90 - 0.85 / sqrt( 0.85 * 0.15 / 300) )
= P (Z > 2.4254)
= 0.0076 (Probability calculated from Z table)
Add Answer to:
it has been estimated that 85% of all people in San Diego
watched the Chargers in...
San Diego in your view were is found that one in five people approach will agree...
San Diego in your view were is found that one in five people approach will agree to take part in her survey on drug abuse and interview were approaches seven people at random find the probability the most to will agree to an interview b ) San Diego interview has found that one in four people approach will take part on a survey on drug abuse an interviewer approaches eight people at random what is the mean and the standard...
only B In 2010, National Public Radio (NPR) conducted a survey of preferences and habits of...
only B
In 2010, National Public Radio (NPR) conducted a survey of preferences and habits of its Facebook fans by recruiting respondents through messages posted on its Facebook page. The survey was conducted online and deployed July 12-19. A total of 40,043 respondents began the survey, with 33, 304 completing all questions. It was found that people accessed NPR on the radio, at NPR.org, through iPhone apps, and several other platforms. Asked about time spent with NPR, about 20% of...
1. in the entire u..s it has been found that 2/3 of the people prefer dogs...
1. in the entire u..s it has been found that 2/3 of the people prefer dogs over cats. you call 12 people selected at random from the entire population . whats the probability that exactly 8 people will prefer dogs? 2. you go to a meeting where 21 people are assembled and it so happens that 14 of these people prefer dogs to cats.. the 21 names are put in a bowl and well mixed. you draw 12 names out...
1). A survey asked San Diego residents the following question: “If you had been aware that...
1). A survey asked San Diego residents the following question: “If you had been aware that before Arnold Schwarzenegger ran for Governor, he had fathered a child outside of his marriage, would you still have voted for him?” Out of the 150 males surveyed who had voted for Schwarzenegger 84 said they would still vote for him, and out of the 120 females 51 said they would. Does the data suggest that there is a difference between the proportion of...
In a region, there is a 0.8 probability chance that a randomly selected person of the...
In a region, there is a 0.8 probability chance that a randomly selected person of the population has brown eyes. Assume 11 people are randomly selected. Complete parts (a) through (d) below. a. Find the probability that all of the selected people have brown eyes. The probability that all of the 11 selected people have brown eyes is (Round to three decimal places as needed.) b. Find the probability that exactly 10 of the selected people have brown eyes. The...
In a large population, 68 % of the people have been vaccinated. If 3 people are...
In a large population, 68 % of the people have been vaccinated. If 3 people are randomly selected, what is the probability that AT LEAST ONE of them has been vaccinated? Give your answer as a decimal (to at least 3 places) or fraction.
It is estimated 29% of all adults in United States invest in stocks and that 85%...
It is estimated 29% of all adults in United States invest in stocks and that 85% of U.S. adults have investments in fixed income instruments (savings accounts, bonds, etc.). It is also estimated that 25% of U.S. adults have investments in both stocks and fixed income instruments. (a) What is the probability that a randomly chosen stock investor also invests in fixed income instruments? Round your answer to decimal places. (b) What is the probability that a randomly chosen U.S....
please kindly make solution and answers visible. thanks The average amount of money that people spend...
please kindly make solution and answers visible. thanks
The average amount of money that people spend at Don Mcalds fast food place is $7.6500 with a standard deviation of $1.8200. 17 customers are randomly selected. Please answer the following questions, and round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X-NI b. What is the distribution of ? -NE c. What is the distribution of +?\--N d. What...
It has been found that 23% of all cars that are sold are white in color....
It has been found that 23% of all cars that are sold are white in color. If a group of 100 cars are randomly selected, what is the probability that fewer than 20 are white? A. 0.1711 B. 0.2776 C. 0.2033 D. 0.2389
It is estimated that 1% of all people have a particular disease. The test for this...
It is estimated that 1% of all people have a particular disease. The test for this disease has a false positive rate of 2%, and a false negative rate of 3%. 1. Draw a tree diagram for this experiment. 2. Suppose that a person is selected at random and tested. Given that the test is negative, what is probability that the person does not have the disease?
only B
In 2010, National Public Radio (NPR) conducted a survey of preferences and habits of its Facebook fans by recruiting respondents through messages posted on its Facebook page. The survey was conducted online and deployed July 12-19. A total of 40,043 respondents began the survey, with 33, 304 completing all questions. It was found that people accessed NPR on the radio, at NPR.org, through iPhone apps, and several other platforms. Asked about time spent with NPR, about 20% of...
In a region, there is a 0.8 probability chance that a randomly selected person of the population has brown eyes. Assume 11 people are randomly selected. Complete parts (a) through (d) below. a. Find the probability that all of the selected people have brown eyes. The probability that all of the 11 selected people have brown eyes is (Round to three decimal places as needed.) b. Find the probability that exactly 10 of the selected people have brown eyes. The...
please kindly make solution and answers visible. thanks
The average amount of money that people spend at Don Mcalds fast food place is $7.6500 with a standard deviation of $1.8200. 17 customers are randomly selected. Please answer the following questions, and round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X-NI b. What is the distribution of ? -NE c. What is the distribution of +?\--N d. What...
Most questions answered within 3 hours.
-
Oxidative phosphorylation is achieved through chemiosmotic
coupling, which turns chemical energy into osmotic potential energy
that...
asked 1 hour ago -
Hollywood Shoes would like to maintain their cash account at a
minimum level of $64,000, but...
asked 58 minutes ago -
Proteins CtrA-P, DnaA, and GcrA behave similarly to what
molecule in the Eukaryotic Cell Cycle?
asked 1 hour ago -
TRUE OR FALSE
In case of a competitive tender procedure, in the request for
quotation, the...
asked 1 hour ago -
I am a little behind please provide some explanation, will
provide thumbs up.
This question considers...
asked 1 hour ago -
Let say the utility function as U(X,Y) = lnX + Y. Show that the
marginal rate...
asked 1 hour ago -
A current of I=8.0A is flowing in a typical extension cord of
length L=3.00m. The cord...
asked 1 hour ago -
1. When balancing the equation H2SO4 (aq) + NaOH (aq) →
Na2SO4(aq) + H2O(aq), would you...
asked 1 hour ago -
Provide a definition of “classification hierarchy” and
illustrate your definition with an example of how and...
asked 1 hour ago -
1. Describe the four main green solvents. Provide one example of
the use of each solvent....
asked 1 hour ago -
International ethics focus on:
1) exploitation of labor
2)corruption
3) environmental impact
4) none of the...
asked 1 hour ago -
Costing Models You work for XYZ trucking and your boss has asked
you to figure out...
asked 1 hour ago