The table below summarizes the daily income of 2 stores. Assume unequal variances. mean standard deviation...

    

Transcribed Image Text:

The table below summarizes the daily income of 2 stores. Assume unequal variances. mean standard deviation n 6 17 Store A 665 60 Store B 556 170 Test at alpha = 10% if the true average of store A is different from the average of store B. What is the degrees of freedom for the Critical Value? Rhode Island legalized medical marijuana in 2006. In 2014, a poll was conducted among 400 college-age Rhode Island residents and it was found that 100 supported the legalization of recreational marijuana. And among 500 college-age Massachusetts residents it was found that 150 supported the legalization of recreational marijuana. Find a 99% confidence interval for the true difference in proportion between college-age Massachusetts residents who support the legalization and the proportion of college-age Rhode Island residents who support the legalization of recreational marijuana. The standard error = Rhode Island legalized medical marijuana in 2006. In 2014, a poll was conducted among 400 college-age Rhode Island residents and it was found that 100 supported the legalization of recreational marijuana. And among 500 college-age Massachusetts residents it was found that 150 supported the legalization of recreational marijuana. Using a 1% significance level, perform an appropriate test of hypothesis to test if the proportion of college-age Massachusetts residents who support the legalization differs from the proportion of college-age Rhode Island residents who support the legalization of recreational marijuana. The Test Statistic for this test is? The table below summarizes the daily income of 2 stores. Assume unequal variances. mean standard deviation n 6 17 Store A 665 60 Store B 556 170 Test at alpha = 10% if the true average of store A is different from the average of store B. What is the degrees of freedom for the Critical Value? Rhode Island legalized medical marijuana in 2006. In 2014, a poll was conducted among 400 college-age Rhode Island residents and it was found that 100 supported the legalization of recreational marijuana. And among 500 college-age Massachusetts residents it was found that 150 supported the legalization of recreational marijuana. Find a 99% confidence interval for the true difference in proportion between college-age Massachusetts residents who support the legalization and the proportion of college-age Rhode Island residents who support the legalization of recreational marijuana. The standard error = Rhode Island legalized medical marijuana in 2006. In 2014, a poll was conducted among 400 college-age Rhode Island residents and it was found that 100 supported the legalization of recreational marijuana. And among 500 college-age Massachusetts residents it was found that 150 supported the legalization of recreational marijuana. Using a 1% significance level, perform an appropriate test of hypothesis to test if the proportion of college-age Massachusetts residents who support the legalization differs from the proportion of college-age Rhode Island residents who support the legalization of recreational marijuana. The Test Statistic for this test is?