Question: College campuses are graying! According to a recent article, one in four college students is aged 30 or older. Assume that the 25% figure is

College campuses are graying! According to a recent article, one in four college students is aged 30 or older. Assume that the 25% figure is accurate, that your college is representative of colleges at large, and that you sample n = 200 students, recording x, the number of students age 30 or older.
a. What are the mean and standard deviation of x?
b. If there are 35 students in your sample who are age 30 or older, would you be willing to assume that the 25% figure is representative of your campus? Explain.

Step by Step Solution

★★★★★

3.45 Rating (164 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Define x to be the number of students 30 years or older wit... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

879-S-J-P-D (1903).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Management of the First Syracuse Bank is concerned about a loss of customers at its main office downtown. One solution that has been proposed is to add one or more drive-through teller stations to...

Management of Charlottesville Bank is concerned about a loss of customers at its main office downtown. One solution that has been proposed is to add one or more drive-through teller windows to make...

According to a recent article in Worth, the average price of a house on Marco Island, Florida, is $2.6 million. Assume that the standard deviation of the prices is $400,000. A random sample of 75...

Accident records collected by an automobile insurance company give the following information: The probability that an insured driver has an automobile accident is 0.17; if an accident has occurred,...

Quiz 1A Accident records collected by an automobile insurance company give the following information: The probability that an insured driver has an automobile accident is 0.17; if an accident has...

5.72 Grey Hair on Campus University campuses are greying! According to a recent article, one in four college students is aged 30 or older. Many of these students are women updating their job skills....

12. Gray Hair on Campus College campuses are graying! According to a recent article, one in four college students is aged 30 or older. Assume that the 25% figure is accurate, that your college is...

You have just begun a new stage in your careeryou have been hired to be the Human Resources (HR) Manager for Berkley Innovative Technologies. Upon meeting the CEO, she described how the company's...

Alcohol Advertising Anheuser-Busch had high hopes for Spykes. When the product was introduced in 2005, the giant brewer was losing market share to distilled spirits. In 2001spirits makers had ended a...

PLEASE HELP General Guidelines A clear structure includes following the steps listed at the end of the case and incorporating the referenced material. Ideas must be clear and organized. Each question...

How would you explain the difference between franchises and other forms of business ownership?

List and briefly describe the three project cost management processes. Q2. What are tangible, intangible, direct and indirect costs? Give examples for each. Q3. What are the three basic types of cost...

Exercise 8-55 Keep or Buy, Sunk Costs Heather Alburty purchased a previously owned Jeep Grand Cherokee for $8,900. Since purchasing the car, she has spent the following amounts on parts and labor:...

Show that Equation (3.5.10) holds. (Hint: Define Zt(h) := 1 yt(h) ... yt(h p + 1) and show Zt(h) = BZt(h 1) by induction.)

23. Bees Insects hovering in flight expend enormous amounts of energy for their size and weight. The data shown here were taken from a much larger body of data collected by T.M. Casey and...

22. Stock Risks The closing prices of two common stocks were recorded for a period of 15 days. The means and variances are a. Do these data present sufficient evidence to indicate a difference...

21. Impurities A pharmaceutical manufacturer is concerned about the variability of the impurities from shipment to shipment from two different suppliers. To compare the variation in percentage...

A company with n employees publishes an internal calendar, where each day lists the employees having a birthday that day. What is the probability that there is at least one day in the year when...

Formaldehyde is produced by the dehydrogenation of ethanol in a catalytic reactor. The following reaction takes place in the reactor: C H 3 O H HCHO + H 2 Methanol feed rate to the reactor is 5 0 kmo...

If the dangerous good's information won't fit along with the label on the container, then where else can it be displayed? On a tag attached to the container On the inside of the container On the...