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Luis created the graph below to show the temperaturefrom 8:00 a.m. (8 hours after midnight) until 8:00 pmWhich statements are true about the temperatures Luisrecorded on the graph? Check all that apply.Hourly TemperatureThe temperature increased until 4:00 p.m.12%The temperature was not recorded between 4:00 pmand 6:00 pmTemperature (°F)The temperature decreased after 6:00 pmThe temperature increased and then decreased beforeholding constant1246810 12 14 1618 20w TThe temperature increased more quickly between 12:00pm and 4:00 pm than before 12:00 pmop
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2 months ago
A building needs a ramp to make it handicap accessible. By law, the ramp must run 10 inches horizontally for every 1 inch of rise. If the surface of the ramp is 57 inches long how far above the ground is the inclined end of the ramp? Round to the nearest tenth of an inch.
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2 months ago
Can someone please HELP me on how to do this
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2 months ago
Of the entering class at a college, 75% attended public high school, 15% attended private high school, and 10% were home schooled. Of those who attended public high school, 18% made the Dean's list, 16% of those who attended private high school made the Dean's list, and 17% of those who were home schooled made the Dean's list. A student is randomly chosen. a) Find the probability that the student made the Dean's list. b) Find the probability that the student came from a public high school, given that the student made the Dean's list. c) Find the probability that the student was not home schooled, given that the student did not make the Dean's
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2 months ago
marketing firm asked a random set of married and single men how much they were willing to spend on a vacation. At α = 0.05, we wish to test whether there is a difference in the two amounts. What is the P-value of this test? Round your answer to 3 significant places after the decimal. (For example, 0.0678 has to be entered as 0.068) Married men Single men Sample size 60 60 Sample mean $880 $845 Population variance 5200 7100
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2 months ago
A ladder is resting against a wall. The top of the ladder touches the wall at a height of 18 ft. Find the length of the ladder if the length is 3 ft more than its distance from the wall.
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2 months ago
In 2015 Forbes magazine listed Bill Gates, the founder of Microsoft, as the richest person in the United States. His personal wealth was estimated to be $76 billion. If there were 314 million people living in the United States that year, how much could each person have received if Gates’ wealth had been divided equally among the population of the United States? (Hint: A billion is a 1 followed by nine zeros while a million is a 1 followed by six zeros.)
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2 months ago
In 2013, the Pew Research Foundation reported that “45% of U.S. adults report that they live with one or more chronic conditions”.39 However, this value was based on a sample, so it may not be a perfect estimate for the population parameter of interest on its own. The study reported a standard error of about 1.2%, and a normal model may reasonably be used in this setting. Create a 95% conﬁdence interval for the proportion of U.S. adults who live with one or more chronic conditions. Also interpret the conﬁdence interval in the context of the study.
General
2 months ago
How heavy a load (pounds) is needed to pull apart pieces of Douglas fir 4 inches long and 1.5 inches square? Here are data from students doing a laboratory exercise: 33,190 31,860 32,590 26,520 33,280 32,320 33,020 32,030 30,460 32,700 23,040 30,930 32,720 33,650 32,340 24,050 30,170 31,300 28,730 31,920 Suppose that the strength of pieces of wood like these follows a Normal distribution with standard deviation 3000 pounds. Give a 95% confidence interval for the mean load required to pull the wood apart.
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2 months ago
Golf-course designers have become concerned that old courses are becoming obsolete since new technology has given golfers the ability to hit the ball so far. Designers, therefore, have proposed that new golf courses need to be built expecting that the average golfer can hit the ball more than 235 yards on average. Suppose a random sample of 130 golfers be chosen so that their mean driving distance is 240.4 yards, with a population standard deviation of 42.2 .Conduct a hypothesis test where H_0: \mu = 235 and H_1:\mu > 235 by computing the following:(a) \ test statistic ______________\ (b) \ p-value p = ______________
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2 months ago
(x − 6)2 − 10 = −7 solve using the square root property
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2 months ago
Jenna's band is going to record a CD at a recording studio. they will pay $200 to use the studio for one day and $85 per hour for sound technicians. Jenna has $125 and can reasonably expect to raise up to an additional $425 by taking pre-orders for CDs. complete the explanation of how the inequality 125 ≤ 200 + 85n ≤ 550 can be used to find the number of hours Jen and herb and can afford to use the studio and sound technicians.please explain your answer.
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2 months ago
The attendance at baseball games at a certain stadium is normally distributed, with a mean of 30,000 and a standard deviation of 1500. For any given game: A) What is the probability that attendance is greater than 27,300? B) What is the probability that attendance will be 30,000 or more? C) What is the probability of attendance between 27,000 and 32,000? D) What must the attendance be at the game, for that game's attendance to be in the top 5% of all games? E) What is the probability that attendance is less than 33,000?
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2 months ago
Toyota advertises that their Toyota Highlander Hybrid provide 28 MPG. To test this, an experiment involving a sample of 20 Toyota Highlander Hybrid vehicles is conducted. In this experiment, for every vehicle, the MPG in the vehicle's computer while it was set at 60 miles per hour on cruise control is recorded. The sample mean MPG recorded is 28.8 miles per gallon with a standard deviation of 6.89 miles per gallon. Use this information to conduct the following hypothesis test at 0.01 level of significance:Null hypothesis: The population mean MPG of Toyota Highlander Hybrid vehicles is equal to 28 miles per gallon.Alternative hypothesis: The population mean MPG is Toyota Highlander Hybrid vehicles is not equal to 28 miles per gallon.What is your conclusion from this test?a. do not reject the nullb. accept the nullc. reject the nulld. none of these
General
2 months ago
An Internet company located in Southern California has season tickets to the Los Angeles Lakers basketball games. The company president always invites one of the 5 vice presidents to attend games with him, and claims he selects the person to attend at random. One of the 5 vice presidents has not been invited to attend any of the last 8 Lakers home games. What is the likelihood this could be due to chance?
General
2 months ago
A huge Ping-Pong tournament is held in Beijing with 65,536 participants at the start of the tournament. Each round ofthe tournament eliminates half the participants. c. How many rounds of play will it take to determine the champion Ping-Pong player?
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2 months ago
The sum of four consecutive Odd integers is -32. What are the four integers?
General
2 months ago
Angle M and Angle N are vertical angles. The measure of Angle M is 3x – 18. The measure of Angle N is x + 30. Solve for x, and find the measures of Angles M and N. x = Measure of Angle M = degrees. Measure of Angle N = degrees.
General
2 months ago
What does the unknown number z represent in 118 / 13 equals 59 / z
General
2 months ago
M/_A=M/_S and M/_S=M/_KM/_A=M/_K
General
2 months ago
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