Essay on Mat201-Mod1-Case Assign1

(a) Approximately, what is the percentile rank for a student who scored 400 on the Math SAT? And Why?

In the U.S., the top one percent of U.S. households has _____ of all wealth and _____ of all income.

17) Imagine a survey that asks 1,000 married and divorced respondents whether they ever cheated on their spouse, and 950 people respond. One major problem with such a survey could be its:

First we find E by doing Zc(standard deviation/square root of number of trials.) Now we add and subtract that number from the mean income to find both endpoints. The Zc of 95% is 1.96 so we would do

Question 5 If the relevant population is 268 million people and the number of people in the labor force is 148 million, the labor force participation rate is:

1.b- The true population proportion of customers who live in an urban area exceeds 40%

I have gathered a questionnaire with eight questions either to agree or disagree and to answer yes or no in regards to immigration. One of the questions was, “The Arizona Immigration Law of authorizing police officers to stop suspected illegal immigrants and demand proof of citizenship is a good law to help deport illegal immigrants” (Appendix A). I have given this questionnaire to twenty-five random individuals. Nine individuals agree with this law and

5. Since the distribution D1 no longer holds, there exist a new distribution where everyone has 0.25 less than original and Wilt Chamberlain has 250,000 more than original

2. The data set represents the income levels of the members of a golf club. Find the probability that a randomly selected member earns at least $100,000.

30. The manager of the local National Video Store sells videocassette recorders at discount prices. If the store does not have a video recorder in stock when a customer wants to buy one, it will lose the sale because the customer will purchase a recorder from one of the many local competitors. The problem is that the cost of renting warehouse space to keep enough recorders in inventory to meet all demand is excessively high. The manager has determined that if 90% of customer demand for recorders can be met, then the combined cost of lost sales and inventory will be minimized. The manager has estimated that monthly demand for recorders is normally distributed, with a mean of 180 recorders and a standard deviation of 60. Determine the number of recorders the manager should order each month to meet 90% of customer demand.

e.) Find a 95% confidence interval for the proportion who stay with D&Y for at least 3 years but this time with starting salaries above the median.

B: Although, there are poor people and rich people who lives in our community. The

The probability is 21.6% that a randomly selected Nova Scotian has a high level of agreement or

In the frequency table for HINTS it shows that 554 males took the survey and 946 females took the survey for a total of 1500 people. The confidence levels are rated from completely confident, very confident, somewhat confident, a little confident, not confident at all, refused to answer, and not at all

2,6% (2) of the participants strongly disagreed, none of the participants disagreed, 9,1% (7) of the participants was neutral, 36,4% (28) participants agreed and 51,9% (40) of the participants strongly agreed.