Question

An economist wondered if people who go to the movies on weekdays go more or less...

An economist wondered if people who go to the movies on weekdays go more or less often on Fridays than any other day. She figured that if it were truly random, 20% of these movie-goers would go on Fridays. She randomly sampled 50 people who go to movies on weekdays and asked them on which day they attend movies most frequently. Of those sampled, 14 indicated that they go on Fridays more often than other days.

The economist conducts a one-proportion hypothesis test at the 5% significance level, to test whether the true proportion of weekday movie-goers who go most frequently on Fridays is different from 20%.

For this test: H0:p=0.2; Ha:p≠0.2, which is a two-tailed test.

Use a TI-83, TI-83 Plus, or TI-84 calculator to test whether the true proportion of weekday movie-goers who go most frequently on Fridays is different from 20%. Identify the test statistic, z, and p-value from the calculator output, rounding to three decimal places.

Homework Answers

Answer #1

Given that, n = 50 and x = 14

=> sample proportion = 14/50 = 0.28

The null and alternative hypotheses are,

H0 : p = 0.2

Ha : p ≠ 0.2

Using TI-83 plus calculator we get,

Test statistic = 1.4142

p-value = 0.157

Since, p-value > 0.05, we fail to reject H0.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
2. SECURING THE WORKFORCE Diversity management in X-tech, a Japanese organisation This case is intended to...
2. SECURING THE WORKFORCE Diversity management in X-tech, a Japanese organisation This case is intended to be used as a basis for class discussion rather than as an illustration of the effective or ineffective handling of an administrative situation. The name of the company is disguised. INTRODUCTION In light of demographic concerns, in 2012, the Japanese government initiated an effort to change the work environment in order to secure the workforce of the future. Japan is world renowned for its...
3 SECURING THE WORKFORCE Diversity management in X-tech, a Japanese organisation This case is intended to...
3 SECURING THE WORKFORCE Diversity management in X-tech, a Japanese organisation This case is intended to be used as a basis for class discussion rather than as an illustration of the effective or ineffective handling of an administrative situation. The name of the company is disguised. INTRODUCTION In light of demographic concerns, in 2012, the Japanese government initiated an effort to change the work environment in order to secure the workforce of the future. Japan is world renowned for its...
Wal-Mart Online Wal-Mart is one of the largest companies in America. It is definitely the largest...
Wal-Mart Online Wal-Mart is one of the largest companies in America. It is definitely the largest retailer, both in terms of the number of stores (8,970 worldwide in 2011) and the level of sales ($419 billion from the 2011 Annual Report). By pushing suppliers to continually reduce costs, Wal-Mart is known for pursuing low prices and the stores often attract customers solely in-terested in lower prices. With Wal-Mart’s expansion into groceries, the company has be-come the largest retail grocer in...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT