Homework Answers
The charge is January was $2000 and the 95% CI for charge in Feb is (1451.64, 1771.55)
Therefore, 95% CI for the decrease(charge in Jan - charge in Feb) in the charge is
(2000-1451.62, 2000-1771.55)
I.e. (228.45, 548.38)
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Financial analysts know that January credit card charges will generally be much lower than those of...
Fina cal ana st ?o that January credit card charges w geno a y be much...
Fina cal ana st ?o that January credit card charges w geno a y be much k r than those o credit card charges of a random sample of 99 cardholders. Complete parts a) through e) below. he month before hat about the diff re co be woen January and the next month? ?? the trend continue? The accompanying data se contains the monthy Click the icon to view the monthly credit card charges. a) Build a regression medel to...
January February 902.79 640.77 7208.82 4571.22 4240.01 2271.57 79.89 299.69...
January
February
902.79
640.77
7208.82
4571.22
4240.01
2271.57
79.89
299.69
4038.81
1376.69
89.24
−120.78
3290.41
1928.63
2418.77
2609.13
83.87
144.74
6.42
393.11
0.00
40.41
564.15
295.64
2714.19
850.07
187.25
162.07
3266.22
2411.62
1525.08
957.05
1358.98
38.013
733.71
2656.94
75.12
64.94
70.27
−70.21
633.98
1860.28
1040.93
478.78
554.05
995.75
1016.82
774.36
1304.09
3364.08
249.63
5.53
48.71
96.94
871.96
890.94
485.52
485.28
616.84
1486.08
1572.31
890.16
422.54
392.15
769.75
323.26
56.55
0.00
1486.28
2253.16
495.57
389.88
1064.46
1065.19
510.06
131.43
5646.18
4950.25...
January February 904.26 641.28 7214.25 4569.29 4234.27 2267.96 79.94 299.72 4043.51 1376.97 89.34 -120.83 3291.24 1927.78 2418.33 2610.63 83.88 144.81 6.42 392.68 0 40.48 564....
January February
904.26 641.28
7214.25 4569.29
4234.27 2267.96
79.94 299.72
4043.51 1376.97
89.34 -120.83
3291.24 1927.78
2418.33 2610.63
83.88 144.81
6.42 392.68
0 40.48
564.23 295.82
2715.11 848.78
187.15 162.09
3265.33 2411.81
1525.05 956.79
1359.03 38.01
733.88 2657.81
75.16 64.89
70.26 -70.25
634.37 1860.98
1041.29 478.41
553.33 994.54
1016.79 774.13
1305.45 3365.66
249.35 5.54
48.79 96.89
872.19 890.51
485.45 485.61
616.27 1484.08
1573.04 889.57
422.45 391.95
770.17 323.65
56.54 0
1484.99 2253.41
495.42 389.59
1065.47 1066.84
510.79 131.48
5647.13 4946.21...
Monthly Credit Card charges December January 1545.24 903.07 4302.19 7208.16 4227.61 4242.62 202.81 79.93 3297.71 4046.26...
Monthly Credit Card charges
December January
1545.24 903.07
4302.19 7208.16
4227.61 4242.62
202.81 79.93
3297.71 4046.26
874.73 89.16
3810.51 3291.06
1935.26 2418.75
99.13 83.92
504.72 6.42
410.88 0.00
683.25 564.36
2159.04 2714.58
1123.46 187.11
2509.71 3268.75
1835.18 1523.58
9.95 1360.31
2334.13 732.98
78.55 75.13
101.29 70.22
598.12 633.81
648.44 1041.91
236.13 553.81
1265.72 1016.92
2124.07 1304.08
3.66 249.42
305.91 48.73
1902.23 871.78
559.02 485.04
2448.35 616.27
2799.41 1574.17
531.39 422.91
537.22 769.43
767.24 56.58
1960.36 1486.88
1678.03 495.83
2065.72 1065.31...
Spending on credit cards decreases after the Christmas spending season (as measured by amount charged on a credit card...
Spending on credit cards decreases after the Christmas spending season (as measured by amount charged on a credit card in December). The accompanying data set contains the monthly credit card charges of a random sample of 99 cardholders. Complete parts a) through e) below 囲Click the icon to view the monthly credit card charges A. All of the conditions are definitely satisfied B. The Randomization Condition is not satisfied. C. The Equal Spread Condition is not satisfied. D. The Nearly...
A credit card company is interested in investigating spending differences for its cardholders between December and...
A credit card company is interested in investigating spending differences for its cardholders between December and January (they believe cardholders are likely to spend more money in December due to holiday shopping). A random sample of 20 cardholders is selected, and the amount charged to their credit card in December 2014 and January 2015 is recorded. The data collected is summarized in the table below. Difference n yd sd Dec - Jan 20 237.325 136.5093 Estimate the mean difference in...
December January 1543.47 903.06 4296.15 7207.24 4229.96 4236.85 202.69 79.99 3296.93 4041.82 873.21 89.25 3812.03 3289.29...
December January
1543.47 903.06
4296.15 7207.24
4229.96 4236.85
202.69 79.99
3296.93 4041.82
873.21 89.25
3812.03 3289.29
1932.82 2418.49
99.17 83.92
503.97 6.42
411.05 0.00
682.55 564.45
2161.01 2712.73
1124.99 186.99
2507.68 3262.37
1837.64 1525.17
9.94 1360.49
2333.51 733.98
78.63 75.08
101.31 70.26
598.44 634.39
648.23 1042.22
235.96 554.09
1267.16 1016.15
2124.18 1304.17
3.66 249.61
306.05 48.73
1900.26 872.97
559.58 485.61
2445.76 616.65
2799.59 1575.21
531.44 422.63
537.23 770.56
766.99 56.54
1959.23 1485.17
1679.34 495.98
2064.97 1065.45
396.87 510.34
5637.86 5646.55...
The balance on Ramon Felipe's credit card on January 15, his billing date, was $383.28. For the period ending Febru...
The balance on Ramon Felipe's credit card on January 15, his billing date, was $383.28. For the period ending February 15, Ramon had the following transactions to the right a) Find the average daily balance for the billing period. b) Find the finance charge to be paid on February 15. Assume an interest rate of 1.2% per month c) Find the balance due on February 15 $33.79 January 16 Charge: Restaurant meal January 30 Payment February 3 Charge: $150.00 $30.61...
Suppose hat on January 1 you have a balance of $5900 on a credit card whose APRIs 15%, which you want o pay ofin 1 year. Assume that you make no additional charges the card after January 1 a. Calcula...
Suppose hat on January 1 you have a balance of $5900 on a credit card whose APRIs 15%, which you want o pay ofin 1 year. Assume that you make no additional charges the card after January 1 a. Calculate your monthly payments b. When the card is paid off, how much will you have paid since January 1? c. What percentage of your total payment from part (b) is interest? a. The monthly payment is s Do not round...
3) A credit card company wants to find out how much, on average, was charged by...
3) A credit card company wants to find out how much, on average, was charged by its card holders last month. The company took a random sample of 100 card holders. An analyst reports that in this study, the average amount charged by card holders in the sample was $1,500 per month. She also reports that based on the information in this study, a 95% confidence interval for the average amount charged by card holders was $1,300 to $1,700 per...
Fina cal ana st ?o that January credit card charges w geno a y be much k r than those o credit card charges of a random sample of 99 cardholders. Complete parts a) through e) below. he month before hat about the diff re co be woen January and the next month? ?? the trend continue? The accompanying data se contains the monthy Click the icon to view the monthly credit card charges. a) Build a regression medel to...
January
February
902.79
640.77
7208.82
4571.22
4240.01
2271.57
79.89
299.69
4038.81
1376.69
89.24
−120.78
3290.41
1928.63
2418.77
2609.13
83.87
144.74
6.42
393.11
0.00
40.41
564.15
295.64
2714.19
850.07
187.25
162.07
3266.22
2411.62
1525.08
957.05
1358.98
38.013
733.71
2656.94
75.12
64.94
70.27
−70.21
633.98
1860.28
1040.93
478.78
554.05
995.75
1016.82
774.36
1304.09
3364.08
249.63
5.53
48.71
96.94
871.96
890.94
485.52
485.28
616.84
1486.08
1572.31
890.16
422.54
392.15
769.75
323.26
56.55
0.00
1486.28
2253.16
495.57
389.88
1064.46
1065.19
510.06
131.43
5646.18
4950.25...
January February
904.26 641.28
7214.25 4569.29
4234.27 2267.96
79.94 299.72
4043.51 1376.97
89.34 -120.83
3291.24 1927.78
2418.33 2610.63
83.88 144.81
6.42 392.68
0 40.48
564.23 295.82
2715.11 848.78
187.15 162.09
3265.33 2411.81
1525.05 956.79
1359.03 38.01
733.88 2657.81
75.16 64.89
70.26 -70.25
634.37 1860.98
1041.29 478.41
553.33 994.54
1016.79 774.13
1305.45 3365.66
249.35 5.54
48.79 96.89
872.19 890.51
485.45 485.61
616.27 1484.08
1573.04 889.57
422.45 391.95
770.17 323.65
56.54 0
1484.99 2253.41
495.42 389.59
1065.47 1066.84
510.79 131.48
5647.13 4946.21...
Monthly Credit Card charges
December January
1545.24 903.07
4302.19 7208.16
4227.61 4242.62
202.81 79.93
3297.71 4046.26
874.73 89.16
3810.51 3291.06
1935.26 2418.75
99.13 83.92
504.72 6.42
410.88 0.00
683.25 564.36
2159.04 2714.58
1123.46 187.11
2509.71 3268.75
1835.18 1523.58
9.95 1360.31
2334.13 732.98
78.55 75.13
101.29 70.22
598.12 633.81
648.44 1041.91
236.13 553.81
1265.72 1016.92
2124.07 1304.08
3.66 249.42
305.91 48.73
1902.23 871.78
559.02 485.04
2448.35 616.27
2799.41 1574.17
531.39 422.91
537.22 769.43
767.24 56.58
1960.36 1486.88
1678.03 495.83
2065.72 1065.31...
Spending on credit cards decreases after the Christmas spending season (as measured by amount charged on a credit card in December). The accompanying data set contains the monthly credit card charges of a random sample of 99 cardholders. Complete parts a) through e) below 囲Click the icon to view the monthly credit card charges A. All of the conditions are definitely satisfied B. The Randomization Condition is not satisfied. C. The Equal Spread Condition is not satisfied. D. The Nearly...
December January
1543.47 903.06
4296.15 7207.24
4229.96 4236.85
202.69 79.99
3296.93 4041.82
873.21 89.25
3812.03 3289.29
1932.82 2418.49
99.17 83.92
503.97 6.42
411.05 0.00
682.55 564.45
2161.01 2712.73
1124.99 186.99
2507.68 3262.37
1837.64 1525.17
9.94 1360.49
2333.51 733.98
78.63 75.08
101.31 70.26
598.44 634.39
648.23 1042.22
235.96 554.09
1267.16 1016.15
2124.18 1304.17
3.66 249.61
306.05 48.73
1900.26 872.97
559.58 485.61
2445.76 616.65
2799.59 1575.21
531.44 422.63
537.23 770.56
766.99 56.54
1959.23 1485.17
1679.34 495.98
2064.97 1065.45
396.87 510.34
5637.86 5646.55...
The balance on Ramon Felipe's credit card on January 15, his billing date, was $383.28. For the period ending February 15, Ramon had the following transactions to the right a) Find the average daily balance for the billing period. b) Find the finance charge to be paid on February 15. Assume an interest rate of 1.2% per month c) Find the balance due on February 15 $33.79 January 16 Charge: Restaurant meal January 30 Payment February 3 Charge: $150.00 $30.61...
Suppose hat on January 1 you have a balance of $5900 on a credit card whose APRIs 15%, which you want o pay ofin 1 year. Assume that you make no additional charges the card after January 1 a. Calculate your monthly payments b. When the card is paid off, how much will you have paid since January 1? c. What percentage of your total payment from part (b) is interest? a. The monthly payment is s Do not round...
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