the driver's legs was measured. The mean footwell intrusion for the small cars was 8.7 centimeters with a standard deviation of 3.97 centimeters. The mean footwel intrusion for the midsize cars d midsize cars. The amount that the footwell intruded on An insurance actuary claims that the mean footwell intrusions for small and midsize cars are equal. Crash tests at 35 mph were performed on 9 randomly selected small cars and 6 randomly selected was 11.9 9 centimeters with a standard deviation of 4.02 centimeters. At a = 0.50, answer, if convenient, use technology to solve the problem. Identify the claim and state Ho and Hg- Which is the correct claim below? O A. "The mean footwell intrusions for small and midsize cars are not equal." OB. "The mean footwell intrusion for small cars is greater than that of midsize cars." OC. "The mean footwell intrusion for small cars is less than that of midsize cars." O D. "The mean footwell intrusions for small and midsize cars are equal." What are Ho and H? The null hypothesis, Hg. is V. The alternative hypothesis, Ha. is Which hypothesis is the claim? O The altemative hypothesis, Ha O The null hypothesis, Ho Decide whether to reject or fail to reject the null hypothesis. Vthe null hypothesis. Interpret the decision in the context of the original claim. At the 50% significance level, V enough evidence to reject the insurance actuary's claim.

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An insurance actuary claims that the mean footwell intrusions for small and midsize cars are equal. Crash tests at 35 mph were performed on 9 randomly selected small cars and 6 randomly selected midsize cars. The amount that the footwell intruded on
the driver's legs was measured. The mean footwell intrusion for the small cars was 8.7 centimeters with a standard deviation of 3.97 centimeters. The mean footwell intrusion for the midsize cars was 11.9 centimeters with a standard deviation of 4.02
centimeters. At a = 0.50, answer, if convenient, use technology to solve the problem.
Identify the claim and state Hg and Ha-
Which is the correct claim below?
O A. "The mean footwell intrusions for small and midsize cars are not equal."
O B. "The mean footwell intrusion for small cars is greater than that of midsize cars."
OC. "The mean footwell intrusion for small cars is less than that of midsize cars."
OD. "The mean footwell intrusions for small and midsize cars are equal."
What are Ho and H?
The null hypothesis, Hg. is
V. The alternative hypothesis, Hg. is
Which hypothesis is the claim?
O The altemative hypothesis, Ha
O The null hypothesis, Ho
Decide whether to reject or fail to reject the null hypothesis.
the null hypothesis.
Interpret the decision in the context of the original claim.
At the 50% significance level,
V enough evidence to reject the insurance actuary's claim.
Transcribed Image Text:An insurance actuary claims that the mean footwell intrusions for small and midsize cars are equal. Crash tests at 35 mph were performed on 9 randomly selected small cars and 6 randomly selected midsize cars. The amount that the footwell intruded on the driver's legs was measured. The mean footwell intrusion for the small cars was 8.7 centimeters with a standard deviation of 3.97 centimeters. The mean footwell intrusion for the midsize cars was 11.9 centimeters with a standard deviation of 4.02 centimeters. At a = 0.50, answer, if convenient, use technology to solve the problem. Identify the claim and state Hg and Ha- Which is the correct claim below? O A. "The mean footwell intrusions for small and midsize cars are not equal." O B. "The mean footwell intrusion for small cars is greater than that of midsize cars." OC. "The mean footwell intrusion for small cars is less than that of midsize cars." OD. "The mean footwell intrusions for small and midsize cars are equal." What are Ho and H? The null hypothesis, Hg. is V. The alternative hypothesis, Hg. is Which hypothesis is the claim? O The altemative hypothesis, Ha O The null hypothesis, Ho Decide whether to reject or fail to reject the null hypothesis. the null hypothesis. Interpret the decision in the context of the original claim. At the 50% significance level, V enough evidence to reject the insurance actuary's claim.
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