Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

View question in a popup | 2h 28m Remaining Exercise 9 (p-value, table) Telephone Calls A researcher knew that before cell phones, a person made

image text in transcribed
View question in a popup | 2h 28m Remaining Exercise 9 (p-value, table) Telephone Calls A researcher knew that before cell phones, a person made on average 2.7 calls per day. He believes that the number of calls made per day today is higher. He selects a random sample of 33 individuals who use a cell phone and asks them to keep track of the number of calls that they made on a certain day. The mean was 3. At a = 0.1, is there enough evidence to support the researcher's claim? The standard deviation for the population found by a previous study is 0.8. Assume that the variable is normally distributed. Use the P-value method with tables. Part: 0 / 5 Part 1 of 5 State the hypotheses and identify the claim. Ho : not claim 0 0=0 H : claim 0#0 H The hypothesis test is a two-tailed V test. X Part: 1 / 5 Part 2 of 5 Compute the test value. Always round z score values to at least two decimal places. Z =

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Precalculus Enhanced With Graphing Utilities (Subscription)

Authors: Michael, Michael Sullivan III, Michael III Sullivan, III Sullivan

6th Edition

0321849108, 9780321849106

More Books

Students also viewed these Mathematics questions