College students and STDs: A recent report estimated that 25% of all college students in the United States have a sexually transmitted disease (STD). Due to the demographics of the community, the director of the campus health center believes that the proportion of students who have a STD is lower at his college. He tests H0: p = 0.25 versus Ha: p < 0.25. The campus health center staff select a random sample of 50 students and determine that 18% have been diagnosed with a STD. Is the sample size condition for conducting a hypothesis test for a population proportion satisfied?

a. No, because (50)(0.18) is less than 10. Because of this the sample size is too small to use the normal distribution to model the distribution of sample proportions.

b. No, because 50 students is not enough to be representative of the students at the college

c. Yes, because the sample is random. It represents the college students at this campus.

d. Yes, because (50)(.25) and (50)(1 ? 0.25) are both at least 10. This means we can use the normal distribution to model the distribution of sample proportions.

d. Yes, because (50)(.25) and (50)(1 - 0.25) are both at least 10. This means we can use the normal distribution to model the distribution of sample proportions.

Step-by-step explanation:

College students and STDs :

The population proportion is p = 0.25

Sample size of students is n = 50

np = 50×0.25 = 12.5

n(1-p) = 50×(1-0.25) = 37.5

Therefore, yes, the sample size condition for conducting a hypothesis test for a population proportion is satisfied because (50)(0.25) and (50)(1 - 0.25) are both at least 10. This means we can use the normal distribution to model the distribution of sample proportions.

the most boring ever written

step-by-step explanation:

i am writing something. yes, i plan to make it the most boring thing ever written. i go to the store. a car is parked. many cars are parked or moving. some are blue. some are tan. they have windows. in the store, there are items for sale. these include such things as soap, detergent, magazines, and lettuce. you can enhance your life with these products. soap can be used for bathing, be it in a bathtub or in a shower. apply the soap to your body and rinse. detergent is used to wash clothes. place your dirty clothes into a washing machine and add some detergent as directed on the box. select the appropriate settings on your washing machine and you should be ready to begin. magazines are stapled reading material made with glossy paper, and they cover a wide variety of topics, ranging from news and politics to business and stock market information. some magazines are concerned with more recreational topics, like sports card collecting or different kinds of hairstyles. lettuce is a vegetable.