What is the internal energy of  gas molecules at a temperature of 300 K?

A 100-g cube of ice at 0°C is dropped into 1.0 kg of water that was originally at 80°C. What is the final temperature of the water after the ice melts?

Unopposed exogenous estrogen administration in women after menopause will increase the risk of cancer of which organ?

In Quarter 1 of 2025, about 11% of US employees used AI few times a month in their work. If there is no change in the population behavior, CLT states that any sample proportion will be around the population proportion. In a recent study of 1250 participants who were working in some US company, Gallup found that 185 of them used AI few times a month in their work. The sample proportion of US employees use AI few times a month in their work is [a] Type in decimal form. Do not round. Assuming all CLT conditions hold, use this sample to find 95% confidence interval and conclude: I am 95% confident that the proportion of all US employees use AI few times a month in their work is between [b] and [c] Type or Copy/paste as in StatCrunch output. Do not round. (Rewriting interval in %) I am 95% confident that the proportion of all US employees use AI few times a month in their work is between [l] % and [m] %. Round to whole number percent. Based on your confidence interval, can you confidently claim that the proportion of all US employees who use AI few times a month in their work has increased from Quarter 1, 2025 value of 11%? ( yes / no) [d]   Is the sample Gallup collected significant enough to claim that the proportion of US employees who use AI few times a month in their work has increased from Quarter 1, 2025 value of 11%?  Test this hypothesis at 5% significance level, Null hypothesis would be  [e] Enter decimal number. Alternate hypothesis would be  [f]  Enter decimal number. The z-stat is [g]. Type or Copy/paste as in StatCrunch output. Do not round. p- value is [h]. Type or Copy/paste as in StatCrunch output. Do not round. The p-value is (less / more) [i] than the level of significance. Conclusion: We (do / do not) [j] have sufficient evidence to reject null hypothesis. Conclusion: [k] (A/ B / C / D) We can confidently claim that the proportion of all US employees who use AI few times a month in their work is now 14.8%. We can confidently claim that the proportion all US employees who use AI few times a month in their work is now 11%. We can confidently claim that the proportion all US employees who use AI few times a month in their work has increased from 11%. We cannot confidently claim that the proportion all US employees who use AI few times a month in their work has increased from 11%

Unusual event – If the probability of it happening is less than 0.025. That is there is less than 2.5% chance that the event will happen. About 55% of this college’s student population are younger than 25 years. Suppose you surveyed a random sample of 420 students to find how many are younger than 25 years. Let X represent sample proportion of students younger than 25 years. Central limit theorem describes the distribution of sample proportion. The mean of the sampling distribution is [a] and standard deviation is [b]. Round to 2 decimals. Use these numbers for next question. Use Central Limit Theorem to find probability. In your sample of 420 students, what is the probability that the sample proportion of students younger than 25 years, is less than 48%? [c] Do not round. Type or copy/paste as in StatCrunch output. In the college where 55% of students are younger than 25 years, we can claim that observing 48% (or lower) of students  younger than 25 years in the sample is [d] (likely / unlikely / very unlikely).

So this exam covers multiple chapters again, now Chs. 19, 20, 21 and 22. Let’s pause and recall that Historiography as defined our second day of class means: 

Beyond Pres. Wilson’s personal influence, one or two turning point(s) in the above policy was: 

History in this course is said to be important for teaching us about the “worst” and “best” of the past so we theoretically can learn how to better participate in what we define as a Capitalist Democracy. In theory, the system is said to contrast with a state-dominated, dictatorial Communism or its gentler cousin, Socialism.

A possible attendance question. Eleanor Roosevelt was insecure about her looks, but also her initial role in society due to:

T/F: Black (previously identified as African-American in some texts) communities find new affluence, hope and cultural achievement after WWI, including in communities such as Harlem, N.Y., but their success in places such as Tulsa, Oklahoma caused resentment among some WASPs who thought they represented too much of the American Dream for too many.