LAB #8 for MATH 1650

Chapter 10

1. The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands): (Use a significant level of 0.05)

Cost	9	2	3	4	2	5	9	10
Number	85	52	55	68	67	86	83	73

Create a scatter graph. Does there seem to be visual evidence of correlation: _____________

If so, is the correlation positive or negative? _______________________

Write the Null and alternative hypothesis for correlation

+ X P (275) Pinte x Content X Course Ho X Q Stat ch 8 F X Browse qu X Ask a Ques X Homework X AM Statdisk Or X G how to tak X C K Paused ... statdisk.com/# Statdisk Online Analysis - Resampling * Data . Data Sets (?) Triola Statistics Series Sample Editor Get started by choosing an analysis, exploring data, or opening a Triola Statistics data set from the menus Sample Editor (? Data Tools Clear CopyAll T Upload Data DownloadData above. Statdisk is designed for users of the Triola PAIR SEX (1=M) ORDER IQ VOL AREA CCSA CIRC WT Statistics Series textbooks, published by Pearson Education 1 1 2 1 96 1005 1913.88 6.08 54.7 57.607 2 2 2 89 963 1684.89 5.73 54.2 58.968 Paste the data to the Sample Editor by using Ctri+v (Windows) or Command+v (macOS). More Sample 3 2 2 1 87 1035 1902.36 6.22 53.0 64.184 Editor tips. 4 2 2 87 1027 1860.24 5.80 52.9 58.514 5 3 2 1 101 1281 2264.25 7.99 57.8 63.958 Recent Triola data sets: 6 2 2 103 1272 2216.40 8.42 56.9 61.690 IQ and Brain Size 7 4 N 103 051 1866.99 7.44 56.6 133.358 Body Data Body Data 8 4 N 2 96 1079 1850.64 6.84 55.3 107.503 Commute Times N 127 1034 1743.04 6.48 53.1 62.143 . . Male Health Exam Results Female Health Exam Results 10 N 126 1070 1709.30 6.43 54.8 83.009 Forecast and Actual Temps 11 6 101 1173 1689.60 7.99 57.2 61.236 FICO Credit Rating Scores H N * Clear history 12 6 96 1079 1806.31 8.76 57.2 61.236 13 N 93 1067 2136.37 6.32 57.2 83.916 14 88 6.32 57.2 79.380 Recent functions: 1104 2018.92 Sample Size Determination: Estimate Proportion 15 N 94 1347 1966.81 7.60 55.8 97.524 CO Confidence Intervals: Standard Deviation Two Samples Confidence Intervals: Standard Deviation One Sample 16 1 85 1439 2154.67 57.2 99.792 Confidence Intervals: Proportion Two Samples 17 1 97 1029 1767.56 6.03 57.2 81.648 Confidence Intervals: Proportion One Sample 18 N 114 1100 1827.92 6.59 56.5 88.452 Confidence Intervals: Mean One Sample Sample Size Determination: Estimate Standard Deviation Sample Size Determination: Estimate Mean Type here to search Ei 11 13 W 4:54 PM O 20 87OF ADD X (6 8/7/2022P (275) Pinte X Content X Course Ho X Q Stat ch 8 F X Browse qu X Ask a Ques X Homework X AM Statdisk Or X G how to tak X + X C statdisk.com/# K Paused ... Statdisk Online Triola Statistics Series Analysis - Resampling * Data . Data Sets (?) Sample Editor Get started by choosing an analysis, exploring data, or opening a Triola Statistics data set from the menus Sample Editor (? Data Tools Clear CopyAll T Upload Data DownloadData above. Statdisk is designed for users of the Triola Statistics Series textbooks, published by Pearson PAIR SEX (1=M) ORDER IQ VOL AREA CCSA CIRC WT Education W 2 2 1 87 1035 1902.36 6.22 53.0 64.184 2 2 2 87 1027 1860.24 5.80 52.9 58.514 Paste the data to the Sample Editor by using Ctri+v (Windows) or Command+v (macOS). More Sample 5 3 2 1 101 1281 2264.25 7.99 57.8 63.958 Editor tips. 3 2 2 103 1272 2216.40 8.42 56.9 61.690 4 2 1 103 1051 1866.99 7.44 56.6 133.358 Recent Triola data sets: 8 4 2 2 96 1079 1850.64 6.84 55.3 107.503 IQ and Brain Size N in 127 1034 1743.04 6.48 53.1 62.143 Body Data Body Data 10 un N 126 1070 1709.30 6.43 54.8 83.009 NN Commute Times 11 101 1173 1689.60 7.99 57.2 61.236 . . Male Health Exam Results Female Health Exam Results 12 6 1 96 1079 1806.31 57.2 61.236 Forecast and Actual Temps 13 N 93 1067 2136.37 6.32 57.2 83.916 FICO Credit Rating Scores * Clear history 14 88 1104 2018.92 6.32 57.2 79.380 15 8 94 1347 1966.81 7.60 55.8 97.524 H N Recent functions: 16 8 1 85 1439 2154.67 7.62 57.2 99.792 Sample Size Determination: Estimate Proportion 17 LD 1 97 1029 1767.56 6.03 57.2 81.648 Confidence Intervals: Standard Deviation Two Samples 18 9 1 N Confidence Intervals: Standard Deviation One Sample 114 1100 1827.92 6.59 56.5 88.452 Confidence Intervals: Proportion Two Samples 19 10 1 2 113 1204 1773.83 7.52 59.2 79.380 Confidence Intervals: Proportion One Sample 20 10 1 1 124 Confidence Intervals: Mean One Sample 1160 1971.63 7.67 58.5 72.576 Sample Size Determination: Estimate Standard Deviation Sample Size Determination: Estimate Mean Type here to search O Si 11 13 W 4:54 PM 2 87OF ADD X (16 8/7/2022