1. A survey found that in a sample of 100 families, 37 owned cats. A survey done 5 years ago found that in a sample of 80 families, 37 owned cats. At has the proportion of cat owners changed over the5-year period? Solution: Step 1: State the hypotheses. Step 2: The level of significance and the critical region. = and Step 3: Compute the value of z test for proportions. Step 4: Decision rule. Step 5: Conclusion.

1. A survey found that in a sample of 100 families, 37 owned cats. A survey done 5 years ago found that in a sample of 80 families, 37 owned cats. At has the proportion of cat owners changed over the5-year period? Solution: Step 1: State the hypotheses. Step 2: The level of significance and the critical region. = and Step 3: Compute the value of z test for proportions. Step 4: Decision rule. Step 5: Conclusion.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 14PPS

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

1. A survey found that in a sample of 100 families, 37 owned cats. A survey done 5 years
ago found that in a sample of 80 families, 37 owned cats. At has the proportion of cat
owners changed over the5-year period?
Solution:
Step 1: State the hypotheses.
Step 2: The level of significance and the critical region.
and
Step 3: Compute the value of z test for proportions.
Step
4:
Decision
rule.
Step 5: Conclusion.

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