Mathematics problem solving

1) The study below is described as an experiment. What aspects of the method ind

1) The study below is described as an experiment. What aspects of the method indicate that the researchers used an experimental research design? Describe the variables in this stu…

1) The subjects in which college students major B) Nominal C) Ratio D) Interval

1) The subjects in which college students major B) Nominal C) Ratio D) Interval A) Ordinal entify which of these types of sampling is used random, statied,systematic cdustet, comv…

1) The sum of nine consecutive integers; n = middle integer of the nine 2)The av

1) The sum of nine consecutive integers;  n = middle integer of the nine 2)The average of four quiz scores if each of the first three scores is 9;   q = fourth quiz score 3) The a…

1) The time needed to complete a test in a particular college course is normally

1) The time needed to complete a test in a particular college course is normally distributed with a mean of 90 minutes and a standard deviation of 15 minutes. Answer the following…

1) The time needed to complete a test in a particular college course is normally

1) The time needed to complete a test in a particular college course is normally distributed with a mean of 90 minutes and a standard deviation of 15 minutes. Answer the following…

1) The time required to assemble an electronic component is normally distributed

1) The time required to assemble an electronic component is normally distributed with a mean and a standard deviation of 22 minutes and 15 minutes, respectively. Use Table 1. Find…

1) The variables described in each scenario. 2) The number of IVs and DVs descri

1) The variables described in each scenario. 2) The number of IVs and DVs described in each scenario. 3) The nature of the independent and dependent variables described in each sc…

1) The variables described in each scenario. 2) The number of IVs and DVs descri

1) The variables described in each scenario. 2) The number of IVs and DVs described in each scenario. 3) The nature of the independent and dependent variables described in each sc…

1) The waiting times at a certain bank are normally distributed with a mean wait

1) The waiting times at a certain bank are normally distributed with a mean waiting time of 3.7 minutes and a standard deviation of 1.4 minutes. Find the waiting time at the 97th …

1) The water flow rate for a particular sprinkler is 21 gpm. The water must be p

1) The water flow rate for a particular sprinkler is 21 gpm. The water must be projected at least 25 feet in radius. The sprinkler is mounted 11 feet above the ground and is aimed…

1) The weather forecast says there is a 40% chance (probability) of rain today a

1) The weather forecast says there is a 40% chance (probability) of rain today and 30% chance of rain tomorrow.    a)What is the chance of rain on both days? (12%)    b)What is th…

1) The weights of the tomatos is normally distributed. If the middle 83% weigh b

1) The weights of the tomatos is normally distributed. If the middle 83% weigh between 2.71 ounces and 5.03 ounces, then what is the mean weight of the tomatos? 2) The weights of …

1) There are five men in a room. Each of them is eithera liar that always lies o

1) There are five men in a room. Each of them is eithera liar that always lies or a knight that always tells thetruth. Each of them was asked the question : How many liars areamou…

1) There are twelve marbles in a bag. Five are red with each one numbered from 1

1) There are twelve marbles in a bag. Five are red with each one numbered from 1 to 5, three are blue numbered 1 to 3, four are green numbered 1 to 4 . If one marble is selected a…

1) There is a 30% chance of rain today and a 70% chance of rain tomorrow. Assume

1) There is a 30% chance of rain today and a 70% chance of rain tomorrow. Assume that the event that it rains today is independent of the event that it rains tomorrow. What is the…

1) Three airlines serve a small town in Ohio. Airline A has 49% of all scheduled

1)Three airlines serve a small town in Ohio. Airline A has 49% of all scheduled flights, airline B has 34% and airline C has the remaining 17%. Their on-time rates are 80%, 66%, a…

1) Three business partners, Hans, Karl and Tony, need to decide how much of this

1) Three business partners, Hans, Karl and Tony, need to decide how much of this year's profits of $625,500 will be apportioned to each person. These amounts are to be determined …

1) Thursday we talked about the probability and probability models. We also look

1) Thursday we talked about the probability and probability models. We also looked at an example that described the possible outcomes of rolling two die. Write the possible outcom…

1) To determine the number of picograms/gram of hexacholohexanes in sea sediment

1) To determine the number of picograms/gram of hexacholohexanes in sea sediments two separate chromatography procedures were used. Determine if the standard deviations are differ…

1) To determine whether speed reading influences reading comprehension, a resear

1) To determine whether speed reading influences reading comprehension, a researcher obtains two reading comprehension scores for each student in a group of high school students, …

1) To determine whether speed reading influences reading comprehension, a resear

1) To determine whether speed reading influences reading comprehension, a researcher obtains two reading comprehension scores for each student in a group of high school students, …

1) To what extent is blushing attractive? To help find out Pazda et al. (2016) a

1) To what extent is blushing attractive? To help find out Pazda et al. (2016) asked male participants to look at photos of women. Each participant saw a photo of the same women, …

1) Todays electronics specializes in manufacturing modern electronic components.

1) Todays electronics specializes in manufacturing modern electronic components. It also builds the equipment that produces the components. Phyllis Weinberger, who is responsible …

1) Tom and Jennifer are eating a candy bar. first Tom eats half of the bar, then

1) Tom and Jennifer are eating a candy bar. first Tom eats half of the bar, then Jennifer eats half of what e remains, then Tom eats half of what remains, then Jennifer eats half …

1) Total cholesterol levels were measured in a random sample of 500 men, and the

1) Total cholesterol levels were measured in a random sample of 500 men, and the resulting 95% confidence interval for the mean was (173.1, 177.1). Indicate which of the following…

1) Total cholesterol levels were measured in a random sample of 500 men, and the

1) Total cholesterol levels were measured in a random sample of 500 men, and the resulting 95% confidence interval for the mean was (173.1, 177.1). Indicate which of the following…

1) Tractor Test data shows that a tractor has an efficiency of 26 percent when d

1) Tractor Test data shows that a tractor has an efficiency of 26 percent when developing 107 hp pulling a load of 6,700 lbs at 5 mph. Determine the rate at which this tractor use…

1) True or False : As the variability in your population increases, the confiden

1) True or False: As the variability in your population increases, the confidence interval will also increase. 2) True or False: A confidence interval is a statement about your le…

1) True or False : Z distributions and t distributions are similar in that they

1) True or False: Z distributions and t distributions are similar in that they vary with degrees of freedom (df) 2) True or False: the t and z distributions look exactly the same …

1) True or False : Z distributions and t distributions are similar in that they

1) True or False: Z distributions and t distributions are similar in that they vary with degrees of freedom (df) 2) True or False: the t and z distributions look exactly the same …

1) True or False questions followed by hypotheses interpretation. a) The appropr

1) True or False questions followed by hypotheses interpretation. a) The appropriate null and alternative hypotheses must be formulated before an experiment is carried out or any …

1) True or false: (With explanations) a) Every boundary point of a set is an acc

1) True or false: (With explanations) a) Every boundary point of a set is an accumulation point of that set b) If a the points of a set A are accumulation points, then A must be c…

1) Twelve drugs have been found to be effective in the treatment of a disease. I

1) Twelve drugs have been found to be effective in the treatment of a disease. It is believed that the sequence in which the drugs are administered is important to the effectivene…

1) Two different types of polishing solution are being evaluated for possible us

1) Two different types of polishing solution are being evaluated for possible use in a tumble-polish operation for manufacturing intraocular lenses used in the human eye following…

1) Two identical dice are made as follows. Each is a cube with a square painted

1) Two identical dice are made as follows. Each is a cube with a square painted on one side, a circle on two sides and a triangle on three sides. If two such dice are rolled, what…

1) Two out of five adult smokers acquired the habit by age 14. If 400 smokers ar

1) Two out of five adult smokers acquired the habit by age 14. If 400 smokers are randomly selected, find the probability that 170 or more acquired the habit by age 14. 2)   The m…

1) Two quantitative variables have a positive correlation when: a) The response

1) Two quantitative variables have a positive correlation when: a) The response values tend to decrease with increases in the predictor values b) The values of the response are po…

1) Two tanks, A and B, are connected to each other via two different pipes. Tank

1) Two tanks, A and B, are connected to each other via two different pipes. Tank A has 300 gallons of brine, and tank B has 100 Gallons of Brine. Brine flows from tank A to tank B…

1) Two tanks, A and B, are connected to each other via two different pipes. Tank

1) Two tanks, A and B, are connected to each other via two different pipes. Tank A has 300 gallons of brine, and tank B has 100 Gallons of Brine. Brine flows from tank A to tank B…

1) Two tanks, A and B, are connected to each other via two different pipes. Tank

1) Two tanks, A and B, are connected to each other via two different pipes. Tank A has 300 gallons of brine, and tank B has 100 Gallons of Brine. Brine flows from tank A to tank B…

1) Typically, the columns of the table represent the __________ and the rows of

1) Typically, the columns of the table represent the __________ and the rows of the table represent the __________. independent; dependent variable marginals; cells standard devia…

1) U.S. Exports The table at the left shows the U.S. exports (in billions of dol

1) U.S. Exports The table at the left shows the U.S. exports (in billions of dollars) to 19 countries for a recent year. (Source: U.S. Department of Commerce) Camad:2s0.9 Taiwan:2…

1) Under what circumstances SPECIFICALLY will the mean, themedian, and the mode

1) Under what circumstances SPECIFICALLY will the mean, themedian, and the mode all have the same value? 2) IDENTIFY the CIRCUMSTANCES in which the median ratherthan the mean is t…

1) Under what circumstances SPECIFICALLY will the mean, themedian, and the mode

1) Under what circumstances SPECIFICALLY will the mean, themedian, and the mode all have the same value? 2) IDENTIFY the CIRCUMSTANCES in which the median ratherthan the mean is t…

1) Up-County Associates is hired to estimate the proportion of county households

1) Up-County Associates is hired to estimate the proportion of county households that own three or more automobiles. They conducted their survey using a simple random sample of 25…

1) Use implicit differentiation to find the slope of the tangent line to the cur

1) Use implicit differentiation to find the slope of the tangent line to the curve "Just need the answer" "Just need the answers" 3) Use implicit differentiation to find the slope…

1) Use polar coordinates to find the volume of the given solid. V = 2) Find the

1) Use polar coordinates to find the volume of the given solid. V = 2) Find the mass and center of mass of the lamina that occupies the region D and has the given density function…

1) Use the counting techniques from the last chapter. A bag contains two red mar

1) Use the counting techniques from the last chapter. A bag contains two red marbles, two green ones, one fluorescent pink one, two yellow ones, and two orange ones. Suzan grabs f…

1) Use the data in the table to answer the question. The x-values are amounts of

1) Use the data in the table to answer the question. The x-values are amounts of saturated fat 1) saturated fat (in grams) in various "low fat" two-ounce muffins. Amounts of Satur…

1) Use the four-step process to find the slope of the tangent line to the graph

1) Use the four-step process to find the slope of the tangent line to the graph of the given function at any point. (Simplify your answers completely.) 2) Use the four-step proces…