BAS474 HW8

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Variable Group 3:

Variable Group 3 Zach Evans

Variables:

Variables My variables indicate the number of times that the donor has responded to other types of mail order offers. It is testing to see if their responses to this donation will be influenced by previous responses.

MBCRAFT– Buying crafting supplies Univariate Summary summary(MBCRAFT) Min. 1st Qu. Median Mean 3rd Qu. Max. 0.00000 0.00000 0.00000 0.05754 0.00000 4.00000 Use median and boxplot because distribution is skewed Association with Target > t.test ( data_score\$MBCRAFT~target_b ) Welch Two Sample t-test data: data_score\$MBCRAFT by target_b t = 0.1668, df = 21645, p-value = 0.8675 alternative hypothesis: true difference in means is not equal to 0 95 percent confidence interval: -0.01140064 0.01352146 sample estimates: mean in group 0 mean in group 1 0.1508010 0.1497405 Reject the null hypothesis because p is greater than 0.05

MBGARDEN– Buys gardening equipment Univariate Summary > summary(GARDEN) Min. 1st Qu. Median Mean 3rd Qu. Max. 0.00000 0.00000 0.00000 0.05754 0.00000 4.00000 Use median and boxplot because distribution is skewed Association with Target > t.test ( data_score\$MBGARDEN~target_b ) Welch Two Sample t-test data: data_score\$MBGARDEN by target_b t = 0.2606, df = 21651, p-value = 0.7944 alternative hypothesis: true difference in means is not equal to 0 95 percent confidence interval: -0.006006573 0.007848674 sample estimates: mean in group 0 mean in group 1 0.05800037 0.05707932 Reject null hypothesis because p is greater than 0.05.

MBBOOKS– Buys books Univariate Summary > summary(BOOKS) Min. 1st Qu. Median Mean 3rd Qu. Max. 0.00 0.00 1.00 1.14 2.00 9.00 Use median and boxplot because distribution is skewed Association with Target > t.test ( data_score\$MBBOOKS~target_b ) Welch Two Sample t-test data: data_score\$MBBOOKS by target_b t = -0.031384, df = 21649, p-value = 0.975 alternative hypothesis: true difference in means is not equal to 0 95 percent confidence interval: -0.04568489 0.04424496 sample estimates: mean in group 0 mean in group 1 1.139569 1.140289 Reject null hypothesis because p is greater than 0.05.

MBCOLECT– Buy collectables Univariate Summary > summary(COLECT) Min. 1st Qu. Median Mean 3rd Qu. Max. 0.00000 0.00000 0.00000 0.06399 0.00000 5.00000 Use median and boxplot because distribution is skewed. Association with Target > t.test ( data_score\$MBCOLECT~target_b ) Welch Two Sample t-test data: data_score\$MBCOLECT by target_b t = 0.84649, df = 21624, p-value = 0.3973 alternative hypothesis: true difference in means is not equal to 0 95 percent confidence interval: -0.004572425 0.011523882 sample estimates: mean in group 0 mean in group 1 0.06572640 0.06225067 Reject null hypothesis because p is greater than 0.05.

MAGFAML- Buy General Family Magazines Univariate Summaries > summary(FEM) Min. 1st Qu. Median Mean 3rd Qu. Max. 0.0000 0.0000 0.0000 0.1269 0.0000 4.0000 Use median and boxplot because distribution is skewed. Association with Target > t.test ( data_score\$MAGFAML~target_b ) Welch Two Sample t-test data: data_score\$MAGFAML by target_b t = 0.26495, df = 21651, p-value = 0.7911 alternative hypothesis: true difference in means is not equal to 0 95 percent confidence interval: -0.01909909 0.02506940 sample estimates: mean in group 0 mean in group 1 0.4540600 0.4510749 Reject null hypothesis because p is greater than 0.05. 