The following data represent the pH of rain for a random sample of 12 rain dates. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. Complete parts a) through d) below. 5.20 5.72 5.24 4.80 5.02 4.57 4.74 5.19 5.34 4.76 4.56 5.71 Click the icon to view the table of critical t-values. (a) Determine a point estimate for the population mean. A point estimate for the population mean is 5.07. (Round to two decimal places as needed.) (b) Construct and interpret a 95% confidence interval for the mean pH of rainwater. Select the correct choice below and fill in the answer boxes to complete your choice. (Use ascending order. Round to two decimal places as needed.) O A. If repeated samples are taken, 95% of them will have a sample pH of rain water between and O B. There is 95% confidence that the population mean pH of rain water is between and O C. There is a 95% probability that the true mean pH of rain water is between and

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The following data represent the pH of rain for a random sample of 12 rain dates. A normal
probability plot suggests the data could come from a population that is normally distributed. A
boxplot indicates there are no outliers. Complete parts a) through d) below.
5.20
5.72
5.24
4.80
4.74
4.56
5.02
4.57
5.19
5.34
4.76
5.71
Click the icon to view the table of critical t-values.
(a) Determine a point estimate for the population mean.
A point estimate for the population mean is 5.07.
(Round to two decimal places as needed.)
(b) Construct and interpret a 95% confidence interval for the mean pH of rainwater. Select the correct choice below and fill in the answer boxes to complete your
choice.
(Use ascending order. Round to two decimal places as needed.)
O A. If repeated samples are taken, 95% of them will have a sample pH of rain water between
and
O B. There is 95% confidence that the population mean pH of rain water is between
and
O C. There is a 95% probability that the true mean pH of rain water is between
and
Transcribed Image Text:The following data represent the pH of rain for a random sample of 12 rain dates. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. Complete parts a) through d) below. 5.20 5.72 5.24 4.80 4.74 4.56 5.02 4.57 5.19 5.34 4.76 5.71 Click the icon to view the table of critical t-values. (a) Determine a point estimate for the population mean. A point estimate for the population mean is 5.07. (Round to two decimal places as needed.) (b) Construct and interpret a 95% confidence interval for the mean pH of rainwater. Select the correct choice below and fill in the answer boxes to complete your choice. (Use ascending order. Round to two decimal places as needed.) O A. If repeated samples are taken, 95% of them will have a sample pH of rain water between and O B. There is 95% confidence that the population mean pH of rain water is between and O C. There is a 95% probability that the true mean pH of rain water is between and
O Table of Critical t-Values
-Area io
right tail
-Distribution
Area in Right Tail
Degrees of
Freedom
0.25
0,20 0,15
0.10
0.05 0.025
0.02
0.01 0.005 0.0025 0.001 0.000s
63657
1051
0 078 1250
0 041 1190
0.920 1.156
0816
7453
5 sos
10 215
7173
0.765
1638
5,841
12.924
0.741
1.533
1476
4.604
8610
0.727
2.015
2 57
4032
4.71
580
6 86
4,317
4.029
0.718
0,906 1.134 1.440
0.896 1.119 1.415
3.143
2.998
3.707
3.490
5.20
4.78
5.95
5.408
0.711
0.889 LI06 1597
3.355
160
0.700
2.896
A 587
2328
2. 303
4.437
4318
1083
1356
3.05
3.429
135
3.930
1857
2.282
3.012
4,221
4.140
2 047
4073
2 724
2.715
3.574
3.319
151
3406
0,848
1045
1.296
2.660
O 846
1201
elect and e
340
1290
128
1282
1037
2 813
2 807
3.00
300
0,675
O 841
1036
2576
3,291
ning
Degrees of 0.25
Freedom
020 0.15
0.10
0.05
0.025
0.02
0,01 0,005 0.0025 0.001 0.0005
t-Distribution
Area in Right Tail
Print
Done
菜兰
ななな查空卖主去き态 当志
主演
拉好科好 形切格p功 42基头怎 站切苏为刘 到配基科蹈 新初那別导品创列M列
Transcribed Image Text:O Table of Critical t-Values -Area io right tail -Distribution Area in Right Tail Degrees of Freedom 0.25 0,20 0,15 0.10 0.05 0.025 0.02 0.01 0.005 0.0025 0.001 0.000s 63657 1051 0 078 1250 0 041 1190 0.920 1.156 0816 7453 5 sos 10 215 7173 0.765 1638 5,841 12.924 0.741 1.533 1476 4.604 8610 0.727 2.015 2 57 4032 4.71 580 6 86 4,317 4.029 0.718 0,906 1.134 1.440 0.896 1.119 1.415 3.143 2.998 3.707 3.490 5.20 4.78 5.95 5.408 0.711 0.889 LI06 1597 3.355 160 0.700 2.896 A 587 2328 2. 303 4.437 4318 1083 1356 3.05 3.429 135 3.930 1857 2.282 3.012 4,221 4.140 2 047 4073 2 724 2.715 3.574 3.319 151 3406 0,848 1045 1.296 2.660 O 846 1201 elect and e 340 1290 128 1282 1037 2 813 2 807 3.00 300 0,675 O 841 1036 2576 3,291 ning Degrees of 0.25 Freedom 020 0.15 0.10 0.05 0.025 0.02 0,01 0,005 0.0025 0.001 0.0005 t-Distribution Area in Right Tail Print Done 菜兰 ななな查空卖主去き态 当志 主演 拉好科好 形切格p功 42基头怎 站切苏为刘 到配基科蹈 新初那別导品创列M列
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