Does the underlying mean drinking time change with glass shape?" using information from the hypothesis test output. Make sure to refer to the p-value when discussing the strength of evidence. p value is 0.0886, Start your sentence by referring to the drink type you used e.g., When using X as the type of drink, …..

Beer in the study that resulted in evidence of a glass shape effect. Soft drink in the study that resulted in no evidence of a glass shape effect A suitable research question for this investigation is “Does the underlying mean drinking time change with glass shape?" Select one of the following drinks for your own virtual experiment: alcohol-free beer, sparkling water, vodka mixer, rum and cola Write one sentence to explain your choice based on the study findings.

College Students and Drinking Habits: A public health official is studying differences in drinking habits among students at two different universities. They collect a random sample of students independently from each of the two universities and ask each student how many alcoholic drinks they consumed in the previous week.The official conducts a two-sample t-test to determine whether these data provide significant evidence that students at University 1 drink more than students at University 2. The test statistic is t = 2.64 with a p-value 0.005.Which of the following is an appropriate conclusion? The samples provide significant evidence that students at University 1 drink more than students at University 2. The samples do not provide statistically significant evidence that there is a difference in drinking habits at the two universities. We cannot use the t-test in this case because the variables (number of drinks) are likely skewed to the right at each university.

A local fast food company sells a 16-oz soft drink. To determine if the soft drinks served contain less than the advertised 16 oz, a random sample of 20 drinks is chosen and the amount of drink in each cup is measured (without ice). The mean amount of soft drink was found to be 15.5 oz with a standard deviation of 0.4 oz. Based on the sample results we cannot claim that the soft drink contains less than 16 oz. Which form of statistical inference does this conclusion represent? Point estimation Hypothesis testing Interval estimation

iNZight Inference using Normal Theory ---------------------------------------------------------------------------------------------------- Primary variable of interest: drink_time (numeric) Secondary variable: glass_shape (categorical) Total number of observations: 100 ==================================================================================================== Inference of drink_time by glass_shape: --------------------------------------- Group Means with 95% Confidence Intervals Estimate Lower Upper curved 2.774 2.577 2.971 straight 3.040 2.799 3.280 Welch Two Sample t-test t = -1.7198, df = 97.819, p-value = 0.088622 Null Hypothesis: true difference in means is equal to 0 Alternative Hypothesis: true difference in means is not equal to 0 Difference in group means with 95% Confidence Interval Estimate Lower Upper curved - straight -0.26585 -0.57260 0.04091 Write down the confidence interval for the difference between underlying mean drinking time (curved - straight) from the inference output Write one sentence that interprets the confidence interval for a difference between underlying means in terms of a comparison.

The restaurant manager is testing the bartender's ability to pour 45 mL of spirits correctly into a mixed drink. The manager has the bartender pour water into 12 shot glasses to test their ability to pour the correct amount of spirits: 48 45 44 43 46 47 42 46 47 45 47 49 Note: The data appears to be approximately normally distributed. Test the bartender's ability to pour 45 mL at the 5% level of significance. T-Distribution Table a. Calculate the sample mean and standard deviation. x̄ = 45.750 Round to three decimal places if necessary s= 0.000 Round to three decimal places if necessary b. Calculate the test statistic. t= 0.000 Round to three decimal places if necessary