A researcher claims that the number of wire fraud crimes in Walnut Creek by season is uniformly distributed. To test this claim, you randomly select 1,903 cases of wire fraud from a recent year and record the season when each happened. The table below shows the results. At a= 0.05, test the researcher's claim. Answer the following questions to perform the hypothesis test. Make sure to show/explain your work for parts B and C. 1. State and and determine which one is the claim. 2. Calculate the test statistic chi-square 3. Determine the P-value 4. Decide whether to reject or fail to reject the null hypothesis and interpret the decision in the context of the original claim. Number of Wire Fraud Crimes per Season Season Frequency, f Summer 456 Spring 727 Winter 233 Fall 487

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
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A researcher claims that the number of wire fraud crimes in Walnut Creek by season is uniformly
distributed. To test this claim, you randomly select 1,903 cases of wire fraud from a recent year and
record the season when each happened. The table below shows the results. At a= 0.05, test the
researcher's claim. Answer the following questions to perform the hypothesis test. Make sure to
show/explain your work for parts B and C.
1. State and and determine which one is the claim.
2. Calculate the test statistic chi-square
3. Determine the P-value
4. Decide whether to reject or fail to reject the null hypothesis and interpret the decision in the
context of the original claim.
Number of Wire Fraud
Crimes per Season
Season Frequency, f
Summer 456
Spring 727
Winter 233
Fall
487
*note: this is fake data - I just used a random number generator like this one to pick numbers.
Transcribed Image Text:A researcher claims that the number of wire fraud crimes in Walnut Creek by season is uniformly distributed. To test this claim, you randomly select 1,903 cases of wire fraud from a recent year and record the season when each happened. The table below shows the results. At a= 0.05, test the researcher's claim. Answer the following questions to perform the hypothesis test. Make sure to show/explain your work for parts B and C. 1. State and and determine which one is the claim. 2. Calculate the test statistic chi-square 3. Determine the P-value 4. Decide whether to reject or fail to reject the null hypothesis and interpret the decision in the context of the original claim. Number of Wire Fraud Crimes per Season Season Frequency, f Summer 456 Spring 727 Winter 233 Fall 487 *note: this is fake data - I just used a random number generator like this one to pick numbers.
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