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A random sample of 49 text books purchased at a local bookstore showed an average price of $122 with a population standard deviation of $15. Let u (new) be the true mean cost of a text book sold by this store. Construct a confidence interval with a 90% degree of confidence. Clearly label the following: a. Point estimate b. Critical value, c. Margin of error d. Confidence interval e. Interpretation (confidence statement).
General
4 months ago
Salaries of 49 college graduates who took a statistics course in college have a mean, x overbar, of $ 65 comma 300. Assuming a standard deviation, sigma, of $17 comma 805, construct a 95% confidence interval for estimating the population mean mu.
General
4 months ago
A class is going on a trip to a museum. It costs $750 to rent a bus. Each ticket to the museum costs $12 Write an algebraic expression that represents the cost of the trip for people. Then evaluate this expression for 37people
General
4 months ago
Need help asap !!!!!
General
4 months ago
How is the equation of this circle written in standard form?x2 + y2 - 6x + 14y = 142
General
4 months ago
Write an equation in slope-intercept form of the line that passes through (6,-2) and (12,1)
General
4 months ago
Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. -1, 2, 3
General
4 months ago
There is a total of 2,512 people attending the fun fair. 5/8 of sttemdees are students and 1/4 of attendees are parents. the rest of the attendees are people living ioin the neigbourhood. How mnay o fthe attendees are people living in the neighbouhood?
General
4 months ago
NFL quarterback Patrick mahomes threw a pass that clocked 62mph. How fast is this in yards per second?
General
4 months ago
o to the repentant to ce actingon the surfaces or docts.6. What are the units of frictiontriction? Noaton, N = ham.s.7. Review the questions in the lab manual.ficient of static-boolean not2.20 NS22 Sino-2068. A 220N box is set on 100 decline. What is the force of friction if the coefficient of staticdocsit mefriction is 0.67? Does the object slide down, if so, with what acceleration? You may changethese numbers around for practicebox QƏNfe Gm F ms2200 casioP= 220N CO510.6.67F mga 0.679. A 400 N box is on a level floor. Instead of pushing it, you decide to drag itver Floor. Instead of pushing it, you decide to drag it by attaching arope at a 45°. You are able to muster 200 N of force pulling at that angle. Withdoes the box move? If not, how much force is required to get the box to movewith 300 and 600 with us = 0:4 and 0.6.HON-0.3 =120NSOX0.3/40 - dob200-120- GONVIII Momentum120X0.31H = 0.09ce pulling at that angle. With a us of 0.3quired to get the box to move? Try solving
General
4 months ago
What is the value of x? NEED ANSWERED FAST 30 pts!!!
General
4 months ago
Whats the numerator for the following rational expression 5/q+9/q=?/q
General
4 months ago
Mickey Mantle played for the New York Yankees for 18 years. Here is the number of home runs by Mantle per year: 13, 23, 21, 27, 37, 52, 34, 42, 31, 40, 54, 30, 15, 35, 19, 23, 22, 18 Compute the five-number summary of the data and determine which boxplot would best represent the data.
General
4 months ago
Scaling up a 4 inch by 6 inch image by 50% results in which of the following image size
General
4 months ago
Given that P = (5, 9) and Q = (13, 12), find the component form and magnitude of vector PQ.
General
4 months ago
The work of a student to solve a set of equations is shown:Equation 1: m = 8 + 2nEquation 2: 6m = 4 + 4nStep 1: −6(m) = −6(8 + 2n) [Equation 1 is multiplied by −6.]6m = 4 + 4n [Equation 2]Step 2: −6m = −48 − 12n [Equation 1 in Step 1 is simplified.]6m = 4 + 4n [Equation 2]Step 3: −6m + 6m = −48 − 12n + 4n [Equations in Step 2 are added.]Step 4: 0 = −48 − 8n Step 5: n = −6 In which step did the student first make an error? Step 3 Step 5 Step 4 Step 2
General
4 months ago
A zoo train ride costs $5 per adult and $1 per child. On a certain day, the total number of adults (a) and children (c) who took the ride was 17, and the total money collected was $65. What was the number of children and the number of adults who took the train ride that day, and which pair of equations can be solved to find the numbers? 5 children and 12 adultsEquation 1: a + c = 17Equation 2: 5a − c = 65 12 children and 5 adultsEquation 1: a + c = 17Equation 2: 5a + c = 65 12 children and 5 adultsEquation 1: a + c = 17Equation 2: 5a − c = 65 5 children and 12 adultsEquation 1: a + c = 17Equation 2: 5a + c = 65
General
4 months ago
What is the equation of the quadratic graph with a focus of (5, 6) and a directrix of y = 2? f(x) = one eighth (x + 5)2 + 4 f(x) = −one eighth (x − 5)2 + 4 f(x) = one eighth (x − 5)2 + 4 f(x) = one eighth (x + 5)2 − 4
General
4 months ago
Suppose a game uses a spinner with five equal sections numbered 1–5 to determine the value of tokens given to the player spinning it. what is the expected value of the number of tokens?
General
4 months ago
Write the product as the product of a whole number and a unit fraction 4 x 2/6
General
4 months ago
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