No prior data given. How do you find n?

You wish to test the claim that μ ≠ 22 at a level of significance of α=0.05 and are given sample statistics n =35, x=21.1, and s =2.7. Compute the value of the standardized test statistic. Round your answer to two decimal places.

Find the P-value for the hypothesis test with the standardized test statistic z. Decide whether to reject H0 for the level of significance α. Left-tailed test z = – 0.85, α = 0.05

A Reuters poll of 1007 randomly selected adults show that 93% of them know twitter. Find the margin of Error, E, with 90% CL E = ( Z_(a/2)) (Sqrt (pq/n))

Pew Research revealed 92% of adults know twitter. 5 adults were randomly chosen. What is the number of ways 3 adults know twitter.

What is a critical value? What is Z_(a/2)? Question from pg 322

Because ___ is rarely known, the confidence interval estimates of ____ almost _____ use the t distribution instead of the normal distribution

The mean age of Taxi drivers in Miami is greater than 78.9 years. If a hypothesis test is performed, how should you interpret a decision that rejects the null hypothesis?

What is the z value of question 3?

A Reuters poll of 1007 randomly selected adults show that 93% of them know twitter. Find the margin of Error, E, with 90%  CL                 E = ( Z alpha/2)  (Sqrt ( pq/n))