ZK
Zybrea Knight
Answers (7)
ZK
Answered
{Real Estate Builder Narrative} At the 0.01 level of significance,what conclusion should the builder draw regarding the inclusion of education in the regression model?
On Jun 07, 2024
Education is not significant in explaining house size and should not be included in the model because its p-value of 0.1383 is larger than 0.01.
ZK
Answered
David's Delicatessen sells macaroni salad for $1.15 per half-pint. Using 1 quart = 2 pints, compute the cost of 4.25 quarts of macaroni salad. (Round to the nearest cent.)
On Jun 06, 2024
$1.15 ´ 2 = $2.30 per pint; 4.25 quarts ´ 2 pints per quart = 8.5 pints;
8.5 pints ´ $2.30 = $19.55
8.5 pints ´ $2.30 = $19.55
ZK
Answered
A Deli proposes to serve 4 main Sandwiches.For planning purposes,the manager expects that the proportions of each that will be selected by her customers will be: 
Of a random sample of 100 customers,44 selected chicken,24 selected roast beef,13 selected Pastrami,and 10 selected tuna.Should the manager revise her estimates? Use α = .01.
Of a random sample of 100 customers,44 selected chicken,24 selected roast beef,13 selected Pastrami,and 10 selected tuna.Should the manager revise her estimates? Use α = .01.On May 06, 2024
H0: p1 = .50,p2 = .20,p3 = .10,p4 = .20 H1: At least one proportion differs from their specified values Rejection region: χ2 > χ2.01,3 = 11.345 Test statistic: χ2 = 7.264 Conclusion: Cannot reject the null hypothesis.The manager should not revise her estimates,according to the data.
ZK
Answered
Which of the following determines the direction of the regression line?
A) intercept
B) predicted score
C) criterion score
D) slope
A) intercept
B) predicted score
C) criterion score
D) slope
On May 05, 2024
D
ZK
Answered
Solve the system of linear equations below by the method of elimination, if a single solution exists. {−9u−8v=−89u+2v=2\left\{ \begin{array} { c } - 9 u - 8 v = - 8 \\9 u + 2 v = 2\end{array} \right.{−9u−8v=−89u+2v=2
A) u=8 and v=−2u = 8 \text { and } v = - 2u=8 and v=−2
B) u=−3 and v=5u = - 3 \text { and } v = 5u=−3 and v=5
C) u=−6 and v=7u = - 6 \text { and } v = 7u=−6 and v=7
D) u=0 and v=1u = 0 \text { and } v = 1u=0 and v=1
E) no solution
A) u=8 and v=−2u = 8 \text { and } v = - 2u=8 and v=−2
B) u=−3 and v=5u = - 3 \text { and } v = 5u=−3 and v=5
C) u=−6 and v=7u = - 6 \text { and } v = 7u=−6 and v=7
D) u=0 and v=1u = 0 \text { and } v = 1u=0 and v=1
E) no solution
On May 04, 2024
D
ZK
Answered
Multiply (x2+4x−4) (5x2+2) \left( x ^ { 2 } + 4 x - 4 \right) \left( 5 x ^ { 2 } + 2 \right) (x2+4x−4) (5x2+2) and simplify.
A) 5x4+8x−85 x ^ { 4 } + 8 x - 85x4+8x−8
B) 5x4+24x3+8x−85 x ^ { 4 } + 24 x ^ { 3 } + 8 x - 85x4+24x3+8x−8
C) 5x4+20x3−18x2+8x−85 x ^ { 4 } + 20 x ^ { 3 } - 18 x ^ { 2 } + 8 x - 85x4+20x3−18x2+8x−8
D) 5x4+20x3+2x2−85 x ^ { 4 } + 20 x ^ { 3 } + 2 x ^ { 2 } - 85x4+20x3+2x2−8
E) 5x4+24x3−20x2+8x−85 x ^ { 4 } + 24 x ^ { 3 } - 20 x ^ { 2 } + 8 x - 85x4+24x3−20x2+8x−8
A) 5x4+8x−85 x ^ { 4 } + 8 x - 85x4+8x−8
B) 5x4+24x3+8x−85 x ^ { 4 } + 24 x ^ { 3 } + 8 x - 85x4+24x3+8x−8
C) 5x4+20x3−18x2+8x−85 x ^ { 4 } + 20 x ^ { 3 } - 18 x ^ { 2 } + 8 x - 85x4+20x3−18x2+8x−8
D) 5x4+20x3+2x2−85 x ^ { 4 } + 20 x ^ { 3 } + 2 x ^ { 2 } - 85x4+20x3+2x2−8
E) 5x4+24x3−20x2+8x−85 x ^ { 4 } + 24 x ^ { 3 } - 20 x ^ { 2 } + 8 x - 85x4+24x3−20x2+8x−8
On May 03, 2024
C