Practice8-1

Practice8-1 - 1 BUAD 310 In-Class Practice for Quiz 2 1 a...

This preview shows pages 1–2. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: - 1 - BUAD 310 In-Class Practice for Quiz 2 3/1/10 1. a) Determine the p-value for H : p = 0.5 versus H a : p > 0.5 when n = 225 and ˆ p = 0.55. b) For a test with a significance level of = 0.10, what would you decide? c) What if the alternative hypothesis had been two-sided? Now what is the p-value? d) What is your decision for the two-sided test? 2. Customers of a company were surveyed as to whether they were satisfied with the service they received. A sample of 2,000 customers yielded ˆ p = 0.60 (proportion of customers satisfied with service in the sample.) What is the standard error of the sample proportion of customers satisfied with service? 3. A recent study conducted by the state government attempts to determine whether the voting public supports further increase in cigarette taxes. If the proportion in favor is at least two-thirds (or 0.67), the government will add some legislation to the next ballot. The opinion poll recently sampled 1500 voting age citizens and 1020 of the sampled citizens were in favor of an increase in...
View Full Document

{[ snackBarMessage ]}

Page1 / 3

Practice8-1 - 1 BUAD 310 In-Class Practice for Quiz 2 1 a...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online