Business Math (11th Edition)
11th Edition
ISBN: 9780134496436
Author: Cheryl Cleaves, Margie Hobbs, Jeffrey Noble
Publisher: PEARSON
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Chapter 18, Problem 10PT
To determine
To calculate: The turnover rate at retail for a restaurant, if the net sale of a restaurant is
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A survey of 581 citizens found that 313 of them favor a new bill introduced by the city.
We want to find a 95% confidence interval for the true proportion of the population who favor the bill.
What is the lower limit of the interval? Enter the result as a decimal rounded to 3 decimal digits.
Your Answer:
2. The SMSA data consisting of 141 observations on 10 variables is fitted by the model
below:
1
y = Bo+B1x4 + ẞ2x6 + ẞ3x8 + √1X4X8 + V2X6X8 + €.
See Question 2, Tutorial 3 for the meaning of the variables in the above model.
The following results are obtained:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 1.302e+03 4.320e+02 3.015 0.00307
x4
x6
x8
x4:x8
x6:x8
-1.442e+02
2.056e+01 -7.013 1.02e-10
6.340e-01 6.099e+00 0.104 0.91737
-9.455e-02 5.802e-02 -1.630
0.10550
2.882e-02 2.589e-03 11.132
1.673e-03 7.215e-04 2.319
F)
x4
1
3486722
3486722
17.9286 4.214e-05
x6
1
14595537
x8
x4:x8
x6:x8
1
132.4836 < 2.2e-16
1045693
194478
5.3769 0.02191
1 1198603043 1198603043 6163.1900 < 2.2e-16
1 25765100 25765100
1045693
Residuals 135 26254490
Estimated variance matrix
(Intercept)
x4
x6
x8
x4:x8
x6:x8
(Intercept)
x4
x6
x8
x4:x8
x6:x8
0.18875694
1.866030e+05 -5.931735e+03 -2.322825e+03 -16.25142055 0.57188953
-5.931735e+03 4.228816e+02 3.160915e+01 0.61621781 -0.03608028 -0.00445013
-2.322825e+03…
In some applications the distribution of a discrete RV, X resembles the Poisson distribution except that 0 is not a possible value of X. Consider such a RV with PMF
where 1 > 0 is a parameter, and c is a constant.
(a) Find the expression of c in terms of 1.
(b) Find E(X).
(Hint: You can use the fact that, if Y ~ Poisson(1), the E(Y) = 1.)
Chapter 18 Solutions
Business Math (11th Edition)
Ch. 18.1 - Prob. 1-1SCCh. 18.1 - Prob. 1-2SCCh. 18.1 - Prob. 1-3SCCh. 18.1 - Prob. 1-4SCCh. 18.1 - Prob. 2-1SCCh. 18.1 - Prob. 2-2SCCh. 18.1 - Prob. 2-3SCCh. 18.1 - Prob. 2-4SCCh. 18.1 - Prob. 3-1SCCh. 18.1 - Prob. 3-2SC
Ch. 18.1 - Prob. 3-3SCCh. 18.1 - Prob. 3-4SCCh. 18.1 - Prob. 4-1SCCh. 18.1 - Prob. 4-2SCCh. 18.1 - Prob. 4-3SCCh. 18.1 - Prob. 4-4SCCh. 18.1 - Prob. 5-1SCCh. 18.1 - Prob. 5-2SCCh. 18.1 - Prob. 5-3SCCh. 18.1 - Prob. 5-4SCCh. 18.1 - Prob. 6-1SCCh. 18.1 - Prob. 6-2SCCh. 18.1 - Prob. 6-3SCCh. 18.1 - Prob. 6-4SCCh. 18.1 - Prob. 6-5SCCh. 18.1 - Prob. 1SECh. 18.1 - Prob. 2SECh. 18.1 - Prob. 3SECh. 18.1 - Prob. 4SECh. 18.1 - Prob. 5SECh. 18.1 - Prob. 6SECh. 18.1 - Prob. 7SECh. 18.1 - Prob. 8SECh. 18.1 - Prob. 9SECh. 18.1 - Prob. 10SECh. 18.1 - Prob. 11SECh. 18.1 - Prob. 12SECh. 18.1 - Prob. 13SECh. 18.1 - Prob. 14SECh. 18.1 - Prob. 15SECh. 18.1 - Prob. 16SECh. 18.1 - Prob. 17SECh. 18.1 - Prob. 18SECh. 18.1 - Prob. 19SECh. 18.1 - Prob. 20SECh. 18.1 - Prob. 21SECh. 18.1 - Prob. 22SECh. 18.1 - Prob. 23SECh. 18.1 - Prob. 24SECh. 18.1 - Prob. 25SECh. 18.1 - Prob. 26SECh. 18.1 - Prob. 27SECh. 18.1 - Prob. 28SECh. 18.1 - Prob. 29SECh. 18.2 - Prob. 1-1SCCh. 18.2 - Prob. 1-2SCCh. 18.2 - Prob. 1-3SCCh. 18.2 - Prob. 1-4SCCh. 18.2 - Prob. 2-1SCCh. 18.2 - Prob. 2-2SCCh. 18.2 - Prob. 2-3SCCh. 18.2 - Prob. 2-4SCCh. 18.2 - Prob. 1SECh. 18.2 - Prob. 2SECh. 18.2 - Prob. 3SECh. 18.2 - Prob. 4SECh. 18.2 - Prob. 5SECh. 18.2 - Prob. 6SECh. 18.2 - Prob. 7SECh. 18.2 - Prob. 8SECh. 18.2 - Prob. 9SECh. 18.2 - Prob. 10SECh. 18 - Prob. 1ESCh. 18 - Prob. 2ESCh. 18 - Prob. 3ESCh. 18 - Prob. 4ESCh. 18 - Prob. 5ESCh. 18 - Prob. 6ESCh. 18 - Prob. 7ESCh. 18 - Prob. 8ESCh. 18 - Prob. 9ESCh. 18 - Prob. 10ESCh. 18 - Prob. 11ESCh. 18 - Prob. 12ESCh. 18 - Prob. 13ESCh. 18 - Prob. 14ESCh. 18 - Prob. 16ESCh. 18 - Prob. 17ESCh. 18 - Prob. 18ESCh. 18 - Prob. 19ESCh. 18 - Prob. 20ESCh. 18 - Prob. 21ESCh. 18 - Prob. 22ESCh. 18 - Prob. 23ESCh. 18 - Prob. 24ESCh. 18 - Prob. 25ESCh. 18 - Prob. 26ESCh. 18 - Prob. 27ESCh. 18 - Prob. 1PTCh. 18 - Prob. 2PTCh. 18 - Prob. 3PTCh. 18 - Prob. 4PTCh. 18 - Prob. 5PTCh. 18 - Prob. 6PTCh. 18 - Prob. 7PTCh. 18 - Prob. 8PTCh. 18 - Prob. 9PTCh. 18 - Prob. 10PTCh. 18 - Prob. 11PTCh. 18 - Prob. 12PTCh. 18 - Prob. 13PTCh. 18 - Prob. 14PTCh. 18 - Prob. 15PTCh. 18 - Prob. 16PTCh. 18 - Prob. 1CTCh. 18 - Prob. 2CTCh. 18 - Prob. 3CTCh. 18 - Prob. 4CTCh. 18 - Prob. 5CTCh. 18 - Prob. 6CTCh. 18 - Prob. 7CTCh. 18 - Prob. 8CTCh. 18 - Prob. 9CTCh. 18 - Prob. 1CPCh. 18 - Prob. 2CPCh. 18 - Prob. 1CS1Ch. 18 - Prob. 2CS1Ch. 18 - Prob. 3CS1Ch. 18 - Prob. 1CS2Ch. 18 - Prob. 2CS2
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