Market research firm

 

1. A sample of the prices for a particular pair of Nike shoes was collected from 16 randomly selected stores. Prices of these Nike shoes are normally distributed. The following prices were noted:
95, 108, 97, 112, 99, 106, 105, 100, 99, 98, 104, 110, 107, 131, 121, 120.
Find a 90% confidence interval for the mean price of the pair of Nike shoes.
State the parameter

State the random variable

State and check the assumptions.

Calculate the confidence interval and state it in interval form. Round to the nearest tenth (one decimal place).

State the conclusion.

2. Suppose that a market research firm is hired to estimate the proportion of adults living in a large city who have cell phones. Five hundred randomly selected adult residents in this city are surveyed to determine whether they have cell phones. Of the 500 people sampled, 422 responded yes – they own cell phones. Find a 99% confidence interval for the proportion of adult residents of this city who have cell phones.
State the parameter

State the random variable

State and check the assumptions.

Calculate the confidence interval and state it in interval form. Round to the nearest hundredth (two decimal places).

State the conclusion.

 

3. As the confidence level decreases, the confidence interval gets narrower. Circle the correct answer.
True False
4. The confidence interval is made up of a point estimate plus and minus the margin of error. Circle the correct answer.
True False
5. The point estimate in a confidence interval is the sample statistic. Circle the correct answer.
True False
6. The purpose of a confidence interval is to estimate a statistic. Circle the correct answer.
True False

 

Sample Solution

Generally, jus in bello recommends in wars, damage must be utilized against soldiers, never against the guiltless. Be that as it may, eventually, the point is to lay out harmony and security inside the district. As Vittola’s decision: ‘the quest for equity for which he battles and the protection of his country’ is the thing countries ought to be battling for in wars (Begby et al (2006b), Page 332). In this manner, albeit the present world has created, we can see not entirely different from the pioneer accounts on fighting and the traditionists, giving one more segment of the hypothesis of the simply war. In any case, we can in any case reason that there can’t be one conclusive hypothesis of the simply war hypothesis due to its normativity.

Jus post bellum
At long last, jus post bellum recommends that the moves we ought to initiate after a conflict (Frowe (2010), Page 208). Vittola, first and foremost, contends after a conflict, it is the obligation of the pioneer to judge how to manage the foe (Begby et al (2006b), Page 332).. Once more, proportionality is stressed. For instance, the Versailles arrangement forced after WWI is tentatively excessively brutal, as it was not all Germany’s problem for the conflict. This is upheld by Frowe, who communicates two perspectives in jus post bellum: Moderation and Maximalism, which are very contrasting perspectives. Minimalists propose a more permissive methodology while maximalist, supporting the above model, gives a crueler methodology, rebuffing the foe both monetarily and strategically (Frowe (2010), Page 208). At the last case, notwithstanding, the point of war is to lay out harmony security, so whatever should be done can be ethically legitimate, assuming it observes the guidelines of jus promotion bellum. All in all, simply war hypothesis is truly contestable and can contend in various ways. Be that as it may, the foundation of a fair harmony is critical, making all war type circumstance to have various approaches to drawing closer (Frowe (2010), Page 227). In any case, the simply war hypothesis contains jus promotion bellum, jus in bello and jus post bellum, and it tends to be either ethically questionable or reasonable relying upon the proportionality of the situation. Consequently, there can’t be one conclusive hypothesis of the simply war yet just a hypothetical manual for show how wars ought to be battled, showing normativity in its record, which responds to the inquiry to what a conflict hypothesis is.

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