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Questions in Grade College

[Done] How does building on the flat areas of a river (floodplains) impact the damage from floods? A. Floodplains with houses can stop the flood waters. B. Building on floodplains increases the need for irrigation. C. Building on floodplains decreases the need for irrigation. D. Building on floodplains destroys natural barriers, causing floodwaters to spread.

[Done] All of the following describe brain functioning in normal aging except one. Which is a symptom of dementia and is not characteristic of normal aging? A. A gradual inability to recognize family members. B. A very slow, slight change in cognitive functioning that stabilizes for years.

[Done] In a study, four individuals with varying levels of cholesterol went on a special crash diet. Some would say that there is a connection between high cholesterol foods and high blood cholesterol levels, but this theory has yet to be proven. The sample of four subjects have displayed their total blood cholesterol levels before and after the diet as: | Participant | | ----------- | | Collin | | Ignacio | | Joseph | | Paulina | | Before | | ------ | | 279 | | 270 | | 290 | | 306 | | After | | ----- | | 258 | | 301 | | 257 | | 298 | Using a $2 \%$ level of significance, was there a significant decrease in cholesterol level in the blood on average? Assume that cholesterol level in the blood is normally distributed. 1. Complete the populations, null and researcher's hypothesis Population 1: The set of all $\square$ Select an answer in the blood $\square$ Select an answer Population 2: The set of all $\square$ Select an answer in the blood $\square$ Select an answer $\begin{array}{l} H_0: ? V \square ? \square \\ H_{r}: ? V \square ? \square \end{array}$ 2. Which test would you use to verify the requirements? $\square$ $n \geq 30$ or $X$ is normally distributed ${ }^{\circ}$ Has the requirements of the test met? $\square$ Yes $\square$ of What is the sampling distribution? $\square$ Student t-distribution 3. Determine the cutoff score (critical value) for significance. $\square$ 4. Fill in the blank for the necessary statistics to test the claim. Use the to help you round your answers. n =$\square \overline{ x }_{d}=\square \text { and } s _{d}=\square$ 5. Determine the standardized sample score (from the sample taken) Round your answer to four decimal places. $\square$ 6. Determine the $p$-value from the standardized sample score. Round your answer to four decimal places. $\square$ 7. Make your decision to reject or fail to reject the null hypothesis. Select an answer $V$

[Done] Magnesium and chlorine react to form an ionic compound. What is the correct name of the compound formed? A. magnesium chloride B. magnesium chlorine C. magnesium chlorite D. magnesium chlorate

[Done] Jordan has been feeling overwhelmed with his online courses and the numerous assignments piling up. He's searching for ways to handle the pressure and maintain his well-being while continuing his studies. How can Jordan manage stress effectively while learning online? A. Bottling up his emotions and avoiding communication B. Ignoring stress and hoping it goes away C. Engaging in regular physical exercise and mindfulness practices D. Constantly multitasking to get everything done at once

[Done] Select the correct location on the table. Three students solved linear equations and compared the solutions. They found that all three of the equations had the same solution. The equations for two of the students, Tristan and Isabelle, are shown below. Determine which is a possible equation that the third student, Steven, solved. Tristan: [tex]-\frac{1}{3} x+2=\frac{5}{2}[/tex] Isabelle: [tex]12 x+25=7[/tex] Steven: ???

[Done] What approximate factor is the intensity of an earthquake with magnitude 5.4 greater than an earthquake with magnitude 5.3? [tex]M=\log \left(\frac{1}{l_0}\right)[/tex] [tex]M=[/tex] the magnitude of an earthquake [tex]I=[/tex] the intensity of an earthquake [tex]I_0=[/tex] the smallest seismic activity that can be measured, which is 1

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Done] Which countries are embargoed and require special attention? A. Iran, North Korea, Syria, Cuba, and the Crimea region of Ukraine B. United Arab Emirates, Saudi Arabia, Oman, and Iraq C. South Korea, Bhutan, Wakanda, and Nigeria D. Yugoslavia, Catalonia, Kingdom of Sikkim, and Ceylon

[Done] What is the unit of measure for resistance?