Wednesday

November 26, 2014

November 26, 2014

Posted by **Michael** on Sunday, October 27, 2013 at 4:45pm.

SAMPLE PROPORTION = .0.388630

SAMPLE SIZE = 159

UPPER LIMIT = .464240

LOWER LIMIT = .331153

What point estimate for the proportion of students prefer foreign automobiles?

A) .0.388630

B) .464240

C) .331153

D) .0.61137

I am having trouble answering this problem? I don't know where to begin.

2. A marketing research company is estimating which of two soft drinks, Mountain Dew or Coke, college students prefer. A random sample of 88 college students produced the following 95% confidence interval for the proportion of college students who prefer Mountain Dew: (0.071, 0.093)

Is the sample size large enough for the interval to be valid?

A) No, the sample size is too small.

B) Yes, the sample was randomly selected from an approximately normal population.

C) No, since mathml equation the sample size is not large enough.

D) Yes, since we know that there are more than 880 college students.

I would say D is the answer because of the population size. Please check my answer. Thx!

- Statistics Math -
**MathGuru**, Sunday, October 27, 2013 at 7:54pm1. The best point estimate for p is the sample proportion. Answer: A

2. I agree with your choice.

**Answer this Question**

**Related Questions**

college - Do students at various colleges differ in how sociable they are? ...

statistics - Do students at various colleges differ in how sociable they are? ...

statistics - Thirty percent of the students in a high school face a disciplinary...

statistics - when 325 students are randomly selected and surveyed, it is found ...

Math - Identify the misuse or misrepresentation of statistics: “60% of all ...

math - a college conducted a survey and determined that 68% of the students ...

Math-Statistics - A marketing research company needs to estimate which of two ...

statistics - The income of college students is normally distributed with a mean ...

Math - Kendall asked 40 randomly-selected seniors at his high school about their...

statistics - Now, let’s look at a situation in which we compare three college ...