MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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According to a report on consumer fraud and identity
theft, 24% of all complaints for a year were for
identity theft. In that year, Virginia had 321
complaints of identity theft out of 1438 consumer
complaints. Does this mean that Virginia had a lower
proportion of identity theft than 24%? Test at the 10%
significance level.
State the hypotheses.
Họ: p (?
HA: P (?
Calculate the sample proportion. Round to four
decimal places.
Calculate the test statistic. Round to two decimal
places.
z =
Find the p-value. Give to four decimal places.
p-value =
State your decision.
Since the p-value is less than 0.1, fail to
reject Ho.
Since the p-value is greater than 0.1, fail to
reject Ho.
| Since the p-value is less than 0.1, reject Ho-
Since the p-value is greater than 0.1, reject
Но-
Interpret the results.
At the 10% level of significance, there is not
enough evidence to support that the
proportion of complaints for identity theft in
Virginia is less than 24%.
At the 10% level of significance, there is not
enough evidence to support that the
proportion of complaints for identity theft in
Virginia is more than 24%.
At the 10% level of significance, there is
enough evidence to support that the
proportion of complaints for identity theft in
Virginia is more than 24%.
At the 10% level of significance, there is
enough evidence to support that the
proportion of complaints for identity theft in
Virginia is less than 24%.
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Transcribed Image Text:According to a report on consumer fraud and identity theft, 24% of all complaints for a year were for identity theft. In that year, Virginia had 321 complaints of identity theft out of 1438 consumer complaints. Does this mean that Virginia had a lower proportion of identity theft than 24%? Test at the 10% significance level. State the hypotheses. Họ: p (? HA: P (? Calculate the sample proportion. Round to four decimal places. Calculate the test statistic. Round to two decimal places. z = Find the p-value. Give to four decimal places. p-value = State your decision. Since the p-value is less than 0.1, fail to reject Ho. Since the p-value is greater than 0.1, fail to reject Ho. | Since the p-value is less than 0.1, reject Ho- Since the p-value is greater than 0.1, reject Но- Interpret the results. At the 10% level of significance, there is not enough evidence to support that the proportion of complaints for identity theft in Virginia is less than 24%. At the 10% level of significance, there is not enough evidence to support that the proportion of complaints for identity theft in Virginia is more than 24%. At the 10% level of significance, there is enough evidence to support that the proportion of complaints for identity theft in Virginia is more than 24%. At the 10% level of significance, there is enough evidence to support that the proportion of complaints for identity theft in Virginia is less than 24%.
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