Mathematics problem solving

1). Answer the Following Given Bellow. A). Let Z be a standard normal variable.

1). Answer the Following Given Bellow. A). Let Z be a standard normal variable. Find the value of z if z satisfies P(Z > z) = 0.6331. a) -0.34 b) 0.34 c) 0.35 d) -0.30 e) 0.30 …

1). Answer the Following Given Bellow. A). Suppose X is a normal random variable

1). Answer the Following Given Bellow. A). Suppose X is a normal random variable with = 35 and = 10. Find P(21.4 < X < 39.7). a) 0.2323 b) 0.5586 c) 0.2478 d) 0.5337 e) 0.59…

1). Based on the genotypes of parents, offspring are expected to have genotypes

1). Based on the genotypes of parents, offspring are expected to have genotypes distributed in such a way that 25% have genotypes denoted by AA, 50% have genotypes denoted by Aa, …

1). If f is integrable on [ a , b ], the following equation is correct. ft (smal

1). If f is integrable on [a, b], the following equation is correct. ft (smaller value) ft (larger value) If is integrable on [ , ], the following equation is correct. f(x) dx = l…

1). If the significance F of a regression model is _______, this model is signif

1). If the significance F of a regression model is _______, this model is significant. a). less than the p-value b). greater than the p-value c). less than the level of significan…

1). It had long been known that there is a coldest possible temperature, called

1). It had long been known that there is a coldest possible temperature, called absolute zero, the temperature of an object if all heat could be removed from it. On the Fahrenheit…

1). Mulberry Realty sells homes in the northeast section of the United States. A

1). Mulberry Realty sells homes in the northeast section of the United States. A frequently asked question by prospective buyers is: If we buy this house, how much can we expect t…

1). Mulberry Realty sells homes in the northeast section of the United States. A

1). Mulberry Realty sells homes in the northeast section of the United States. A frequently asked question by prospective buyers is: If we buy this house, how much can we expect t…

1). Mulberry Realty sells homes in the northeast section of the United States. A

1). Mulberry Realty sells homes in the northeast section of the United States. A frequently asked question by prospective buyers is: If we buy this house, how much can we expect t…

1). Mulberry Realty sells homes in the northeast section of the United States. A

1). Mulberry Realty sells homes in the northeast section of the United States. A frequently asked question by prospective buyers is: If we buy this house, how much can we expect t…

1). Prove that P(EUFUG)= P(E)+P(F)+P(G)- P(E^C F G) - P( E F^c G )- P( E F G^c)-

1). Prove that P(EUFUG)= P(E)+P(F)+P(G)- P(E^C F G) - P( E F^c G )- P( E F G^c)-2P(EFG) 2). A deck of cards contains 30 cards with labels 1,2,.........30 Suppose that somebody is …

1). Prove that P(EUFUG)= P(E)+P(F)+P(G)- P(E^C F G) - P( E F^c G )- P( E F G^c)-

1). Prove that P(EUFUG)= P(E)+P(F)+P(G)- P(E^C F G) - P( E F^c G )- P( E F G^c)-2P(EFG) 2). A deck of cards contains 30 cards with labels 1,2,.........30 Suppose that somebody is …

1). The TV show Myth Busters tried to determine if yawning was contagious. Adam

1). The TV show Myth Busters tried to determine if yawning was contagious. Adam Savage and Jamie Hyneman, the cohosts of Myth Busters, examined data from an experiment involving 5…

1). The general solution of xdy/dx ? 3y = x^3y^1/3 is: (a) y1/3 = 2x3 + Cx2 (b)

1). The general solution of xdy/dx ? 3y = x^3y^1/3 is: (a) y1/3 = 2x3 + Cx2 (b) y2/3 = 23x3 + Cx2 (c) y2/3 = 23x2 + Cx2 (d) y = 23x3 + Cx?2 (e) None of the above. 2). The general …

1). The general solution of xdy/dx ? 3y = x^3y^1/3 is: (a) y1/3 = 2x3 + Cx2 (b)

1). The general solution of xdy/dx ? 3y = x^3y^1/3 is: (a) y1/3 = 2x3 + Cx2 (b) y2/3 = 23x3 + Cx2 (c) y2/3 = 23x2 + Cx2 (d) y = 23x3 + Cx?2 (e) None of the above. 2). The general …

1). The least squares method minimizes which of the following? a). SST b).SSR c)

1). The least squares method minimizes which of the following? a). SST b).SSR c). SSE d).none of theabove 2). Which of the following identifies the range for a correlation coeffic…

1). The least squares method minimizes which of the following? a). SST b).SSR c)

1). The least squares method minimizes which of the following? a). SST b).SSR c). SSE d).none of theabove 2). Which of the following identifies the range for a correlation coeffic…

1). The surface area S of a cube with edge length x is given by S ( x ) = 6 x 2

1). The surface area S of a cube with edge length x is given by S(x) = 6x2 for x > 0. Suppose the cubes your company manufactures are supposed to have a surface area of exactly…

1). Three people are selected at random from four females and nine males. Find t

1). Three people are selected at random from four females and nine males. Find the probability of the following. (See Example 4. Round your answers to three decimal places.) (a) A…

1). To examine the effectiveness of its four annual advertising promotions, a ma

1). To examine the effectiveness of its four annual advertising promotions, a mail order company has sent a questionnaire to each of its customers, asking how many of the previous…

1). What F-distribution value results from 10 degrees of freedom (numerator), 15

1). What F-distribution value results from 10 degrees of freedom (numerator), 15 degrees if freedom (denominator) and area in the upper tail of the F-distribution equal to 0.05? 2…

1). What F-distribution value results from 10 degrees of freedom (numerator), 15

1). What F-distribution value results from 10 degrees of freedom (numerator), 15 degrees if freedom (denominator) and area in the upper tail of the F-distribution equal to 0.05? 2…

1). When temperature is 0 degrees Celsius, the Fahrenheit temperature is 32. Whe

1). When temperature is 0 degrees Celsius, the Fahrenheit temperature is 32. When the Celsius temperature is 100, the corresponding Fahrenheit temperature is 212. Express the Fahr…

1). Which of the following statements about exponential smoothing is false? a).

1). Which of the following statements about exponential smoothing is false? a). It takes into account all earlier observations in the time series. b). It’s like a weighted average…

1). Which of the following tests should be performed to determine whether the me

1). Which of the following tests should be performed to determine whether the means of two populations are equal? C a Attest b. An analysis of variance c. A chi-square test d. Eit…

1). Write the null and alternative hypothesis. Make sure you write the correct “

1). Write the null and alternative hypothesis. Make sure you write the correct “formula” (Ho or Ha), noting whether it is directional or non-directional depending on whether the q…

1)A CAR TIRE RADIUS OF 42.5 cm. It is rotating at 3500 rotations/minute. a)Expre

1)A CAR TIRE RADIUS OF 42.5 cm. It is rotating at 3500 rotations/minute. a)Express the rotations/minute as radians/seconds, b)Calculate how far the tire has traveled in 10 minutes…

1)A batch contains 40 bacteria cells. Assume that 12 of the cells are not capabl

1)A batch contains 40 bacteria cells. Assume that 12 of the cells are not capable of cellular replication. Six cells are selected at random, without replacement, to be checked for…

1)A billboard d = 61 feet wide is perpendicular to a straight road and is 40 fee

1)A billboard d = 61 feet wide is perpendicular to a straight road and is 40 feet from the road . Find the point on the road at which the angle ? subtended by the billboard is a m…

1)A firm has monthly average costs, in dollars, given by the following function

1)A firm has monthly average costs, in dollars, given by the following function where x is the number of units produced per month. C = + 200 + x The firm can sell its product in a…

1)A generic brand of Centrum sells for $7.99. The net profit is $3.50 and the ov

1)A generic brand of Centrum sells for $7.99. The net profit is $3.50 and the overhead is $1.00. What is the cost? 2)How many 10 mg Lasix tablets are needed to make 240 ml of a 0.…

1)A major difference between the video works of Peter Campus and the films of mo

1)A major difference between the video works of Peter Campus and the films of modern filmmakers is a)his emphasis upon narrative content. b)his electronically manipulated images. …

1)A medical school has 3 affiliate hospitals in Brooklyn, 4 in Manhattan, and 9

1)A medical school has 3 affiliate hospitals in Brooklyn, 4 in Manhattan, and 9 in the Bronx. If you randomly choose two different hospitals, what is the chance they are in the sa…

1)A political scientist is interested in the relationship between someone\'s pol

1)A political scientist is interested in the relationship between someone's political views and his or her optimism about the future. A random sample of 1102 American adults 18 an…

1)A product line is sold in 15 different configurations of packaging. How does t

1)A product line is sold in 15 different configurations of packaging. How does the large number of package types influence the value of the chi-squared statistic? 2)Why are chi-sq…

1)A random sample of 100 University of Alabama (UA) male students was selected.

1)A random sample of 100 University of Alabama (UA) male students was selected. Each student was asked to do at least 20 push-ups. Only 32 students could complete the task. For an…

1)A real estate agent is interested in determining factors that affect the mean

1)A real estate agent is interested in determining factors that affect the mean selling price of a home. One factor she is considering is known as "lot configuration," which deter…

1)A relationship expert is interested in the relationship between divorce and ge

1)A relationship expert is interested in the relationship between divorce and general happiness. A sample of 1,212 individuals who reported their marital status as either "married…

1)A student takes a 5 question multiple choice quiz with 4 choices for each ques

1)A student takes a 5 question multiple choice quiz with 4 choices for each question. If the student guesses at random on each question, what is the probability that the student g…

1)A variable is normally distributed with mean13 and standard deviation 2. a. Fi

1)A variable is normally distributed with mean13 and standard deviation 2. a. Find the percentage of all possible values of the variable that lie between 9 and16. b. Find the perc…

1)A variable is normally distributed with mean13 and standard deviation 2. a. Fi

1)A variable is normally distributed with mean13 and standard deviation 2. a. Find the percentage of all possible values of the variable that lie between 9 and16. b. Find the perc…

1)Alpha is the probability of a type 1 error, the risk we are willing to take of

1)Alpha is the probability of a type 1 error, the risk we are willing to take of rejecting H0 when it's true. The critical value(s) bound the reject region(s) with probability alp…

1)An alert physics student stands beside the tracks as a train rolls slowly past

1)An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 461 Hz when the train is approaching him and …

1)An analyst thinks that next year there is a 70% chance that the world economy

1)An analyst thinks that next year there is a 70% chance that the world economy will be good, a 10% chance that it will be neutral, and a 20% chance that it will be poor. She also…

1)An article stated, \"Surveys tell us that more than half of America\'s college

1)An article stated, "Surveys tell us that more than half of America's college graduates are avid readers of mystery novels." Let p denote the actual proportion of college graduat…

1)Answer the questions based on the following probability table: 0.45 0.15 0.15

1)Answer the questions based on the following probability table: 0.45 0.15 0.15 a) Compute the following probabilities i) P(B) ii) P[AUB) b)Are events A, B mutually exclusive? Exp…

1)As a general rule, specialists tend to use a number of classes when organizing

1)As a general rule, specialists tend to use a number of classes when organizing data a) Between 20 and 25 b) More than 30 c) Between 5 and 20 d) Between one and five 2)Set of all…

1)Assume that we tracked the down time of TV service in my local area in the pas

1)Assume that we tracked the down time of TV service in my local area in the past week (because of storms). The table below shows the total hours of down time and the number of ho…

1)At noon, ship A is 120 km west of ship B. Ship A is sailing east at 25 km/h an

1)At noon, ship A is 120 km west of ship B. Ship A is sailing east at 25 km/h and ship B is sailing north at 20 km/h. How fast is the distance between the ships changing at 4:00 P…

1)Bob wants to create two pens, as shown in the figure. One pen is for a garden

1)Bob wants to create two pens, as shown in the figure. One pen is for a garden and it needs a heavy duty fence to keep out the critters. This heavy duty fence costs $10 per foot.…