Best writers. Best papers. Let professionals take care of your academic papers

Order a similar paper and get 15% discount on your first order with us
Use the following coupon "FIRST15"
ORDER NOW

The number of successes and the sample size are given for a simple random sample from a population. Decide whether

The number of successes and the sample size are given for a simple random sample from a population. Decide whether

using the one-proportion z-test is appropriate.

x = 3, n = 80, H0: p = 0.04, Ha: p > 0.04

Not appropriate
Appropriate

Use the two-proportions z-interval procedure to obtain the required confidence interval for the difference between two population proportions. Assume that independent simple random samples have been selected from the two populations.

Need assignment help for this question?

If you need assistance with writing your essay, we are ready to help you!

OUR PROCESS

Order

Payment

Writing

Delivery

Why Choose Us: Cost-efficiency, Plagiarism free, Money Back Guarantee, On-time Delivery, Total Сonfidentiality, 24/7 Support, 100% originality

A survey of students at one college found that 57 of 96 randomly selected freshmen and 85 of 118 randomly selected sophomores lived off campus. Find a 98% confidence interval for the difference between the proportions of freshmen and sophomores at this college who live off campus.

-0.278 to 0.025
0.468 to 0.721
-0.254 to 0.721
0.444 to 0.744

Use the one-proportion z-interval procedure to find the required confidence interval.

In a sample of 713 patients who underwent a certain type of surgery, 22% experienced complications. Find a 90% confidence interval for the proportion of all those undergoing this surgery who experience complications.

0.2045 to 0.2355
0.2001 to 0.2399
0.1892 to 0.2508
0.1945 to 0.2455

Find the P-value for the indicated hypothesis test.

In a sample of 47 adults selected randomly from one town, it is found that 9 of them have been exposed to a particular strain of the flu. Find the P-value for a hypothesis test to determine whether the proportion of all adults in the town that have been exposed to this strain of the flu differs from 8%.

0.0262
0.0024
0.0048
0.0524

Find the required sample size without making a guess for the observed value of .

A manufacturer wishes to estimate the proportion of washing machines leaving the factory that are defective. Obtain a sample size that will ensure a margin of error of at most 0.014 for a 97% confidence interval.

39
38
6006

"Order a similar paper and get 15% discount on your first order with us
Use the following coupon
"FIRST15"

Order Now