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Recent questions in Multivariable functions

lunnatican4 2021-12-09

For each of the following test, outline a research scenario and use any hypothetical data to show how the test is conducted
i. Analysis of variance
ii. Chi-square for goodness-of-fit test
iii. Chi-square test for independence

kuvitia9f 2021-12-08

On the final examination in Engineering Data Analysis, the mean was 72 and the standard deviation was 15.
1. Determine the standard scores (z-values) of students receiving the grade of 65.
2. Determine the standard scores (z-values) of students receiving the grade of 85

Shelia Lawrence 2021-12-08

A geologist has collected 15 specimens of basaltic rock and 15 specimens of granite. The geologist instructs a laboratory assistant to randomly select 25 of specimens for analysis.
a) What is the pmf of the number of granite specimens selected for analysis? (Round your probabilities to four decimal places.)
$\begin{array}{cc} x \\ p (x) \end{array}$
b) What is the probability that all specimens of the two types of rock are selected for analysis? (Round your answer to four decimal places.)
c) What is the probability that the number of granite specimens selected for analysis is within 1 standard deviation of its mean value? (Round your answer to four decimal places.)

rastafarral6 2021-12-02

$\int_{1}^{0} \tan (x^{2}) d x + 2 \int_{1}^{0} x^{2} \sec^{2} (x^{2}) d x = \frac{π}{4}$
Select one:
True
False

Eichowa4 2021-11-26

Graph the equation $x^{2} + y^{2} + 4 x - 6 y - 3 = 0$ in a rectangular coordinate system. If two functions are indicated, graph both in the same system.Then use your graphs to identify the relation’s domain and range.

philosphy111of 2021-11-26

Solve the polynomial inequality
$x^{2} - 2 x + 1 > 0$
and graph the solution set on a real number line. Express the solution set in interval notation.

vousetmoiec 2021-11-23

Graph the sets of points whose polar coordinates satisfy the given polar equation.
The given polar equation is written as follows:
$\frac{π}{4} \leq θ \leq \frac{3 π}{4}, 0 \leq r \leq 1$

Halkadvalseln 2021-11-23

The function $f (x) = 2 x^{3} - 33 x^{2} + 168 x + 9$ has one local minimum and one local maximum.
Use a graph of the function to estimate these local extrema.
This function has a local minimum at $x = ?$
with output value:
and a local maximum at $x = ?$
with output value:

Mahagnazk 2021-11-23

Analyze and sketch a graph of the function. Label any intercepts, relative extrema, points of inflection, and asymptotes. Use a graphing utility to verify your results $y = 3 x^{\frac{2}{3}} - 2 x$

tbbfiladelfia6l 2021-11-23

The Munchies Cereal Company combines a number of components to create a cereal. Oats and rice, two of the constituents, offer vitamins A and B. The business is trying to determine how much oats and rice, in terms of ounces, should go into each box of cereal in order to meet the minimum requirements of 48 milligrams of vitamin A and 12 milligrams of vitamin B while keeping costs as low as possible. In comparison to rice, which provides 6 milligrams of A and 2 milligrams of B per ounce, oats provide 8 milligrams of A and 1 milligram of B. Oats cost $0.05 per ounce and rice cost $0.03 per ounce.
a. Formulate a linear programming model for this problem.
b. Solve this model by using graphical analysis.
c. What would be the effect on the optimal solution if the cost of rice increased from $0.03 per ounce to $0.06 per ounce?

Sheelmgal1p 2021-11-22

A commodity has a demand function modeled by $p = 126 - 0.5 x$ and a total cost function modeled by $C = 50 x + 39.75$ , where x is the number of units.
(a)Use the first marginal analysis criterion presented in class to find the production level that yields a maximum profit. Then use the second criterion to ensure that level yields a maximum and not a minimum. Finally, what unit price (in dollars) yields a maximum profit?
$ per unit
(b)When the profit is maximized, what is the average total cost (in dollars) per unit? (Round your answer to two decimal places.)
$ per unit

ambiguit 2021-11-22

Graph the sets of points whose polar coordinates satisfy the given polar equation.
The given polar equation is written as follows:
$r \geq 1$

deliredejoker7m 2021-11-22

Graph the sets of points whose polar coordinates satisfy the given polar equation.
The given polar equation is written as follows:
$- \frac{π}{2} \leq θ \leq \frac{π}{2}, 1 \leq r \leq 2$

tbbfiladelfia6l 2021-11-22

Find the solution set for the system
$x^{2} + y^{2} = 25$
$25 x^{2} + y^{2} = 25$
by graphing both of the system’s equations in the same rectangular coordinate system and finding points of intersection. Check all solutions in both equations.

Virginia Caron 2021-11-22

Graph the sets of points whose polar coordinates satisfy the given polar equation.
The given polar equation is written as follows:
$θ = \frac{2 π}{3}, r \leq - 2$

villane0 2021-11-21

Explain about Correlation test for Scale/ Ordinal Variables in terms of
a. Analysis background - a brief introduction on the objective of the analysis, hypothesis statements, and the variables.
b. Analysis procedures - the flow chart of the analysis procedures or the step-by - step procedure in performing the analysis.

rastafarral6 2021-11-21

It has been reported that many university students are increasingly stressed out as a result of the pandemic and current online learning environment. To respond to the situation, a mental health center at a university is offering online meditation sessions for students. They are planning to investigate if attendance in the sessions can help students reduce their stress levels.
a) What type of experimentation and statistical analysis among the following: ANOVA (one-way, two-way), hypothesis testing (t-test, chi-squared test, F-test, ...), regression analysis, is needed to conduct such investigation?
b) If your answer to part (a) is hypothesis testing, specify the type of the test (e.g. t-test, chi squared test, F-test, ...) that is needed and then write the null and alternative hypothesis for your test.
If your answer to part (a) is one-way or two-way ANOVA, define the factor(s) and their level(s).
If your answer to part (a) is regression analysis, define your random variables.

Mahagnazk 2021-11-21

What is the difference between a relative maximum and an absolute maximum on an interval |?

NompsypeFeplk 2021-11-21

Graph the sets of points whose polar coordinates satisfy the given polar equation. The given polar equation is written as follows:
$θ = \frac{π}{2}, r \leq 0$

cleritere39 2021-11-21

Forest Fires and Acres Burned Numbers (in thousands) of forest fires over the year and the number (in hundred thousands) of acres burned for 7 recent years are shown.
$\begin{array}{cc} N u m b e r o f f i r e s x & 62 & 57 & 72 & 69 & 58 & 47 & 84 \\ N u m b e r o f a c r e s b u r n e d y & 61 & 56 & 71 & 68 & 57 & 46 & 83 \end{array}$
The correlation coefficient for the data is r=1 and a=0.05, Should regression analysis be done?
Find the equation of the regression line.
$y^{^{'}} = a + b x$
Find $y^{^{'}}$ when x = 60.

The multivariable function is related to regression analysis, which may be a bit challenging for college students as they implement estimation for the various data sets. Keeping all these challenges in mind, we aim to provide you with the answers to the most popular problems and questions where a helpful multivariable function example will be of help. You should also focus on each multivariable question by starting with analysis and proper calculation of each variable as you exchange various practical sets. The purpose is to remove the constraints of single variables as you add any calculations.

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