Question

Classes SISK-12 360 Launch The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that \( 77 \% \) of all fatally injured automoblle drivers were Intoxicated. A random sample of 54 records of automobile driver fatalities in a certain county showed that 35 involved an intoxicated driver. Do these data Indicate that the population proportion of driver fatalities related to alcohol is less than \( 77 \% \) in KIt Carson County? Use \( \alpha=0.10 \). USE SALT (a) What is the level of significance? \[ 0.10 \] State the null and alternate hypotheses. \( H_{0}: p<0.77 ; H_{1}: p=0.77 \) \( H_{0}: p=0.77 ; H_{1}: p>0.77 \) \( H_{0}: p=0.77 ; H_{1}: p \neq 0.77 \) \( H_{0}: p=0.77 ; H_{1}: p<0.77 \) (b) What sampling distribution will you use? The standard normal, since \( n p>5 \) and \( n q>5 \). The Student's \( t \), since \( n p<5 \) and \( n q<5 \). The Student's \( t \), since \( n p>5 \) and \( n q>5 \). The standard normal, since \( n p<5 \) and \( n q<5 \). What is the value of the sample test statistic? (Round your answer to two decimal places.)

          Classes
SISK-12 360
Launch
The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that \( 77 \% \) of all fatally injured automoblle drivers were Intoxicated. A random sample of 54 records of automobile driver fatalities in a certain county showed that 35 involved an intoxicated driver. Do these data Indicate that the population proportion of driver fatalities related to alcohol is less than \( 77 \% \) in KIt Carson County? Use \( \alpha=0.10 \).
USE SALT
(a) What is the level of significance?
\[
0.10
\]

State the null and alternate hypotheses.
\( H_{0}: p<0.77 ; H_{1}: p=0.77 \)
\( H_{0}: p=0.77 ; H_{1}: p>0.77 \)
\( H_{0}: p=0.77 ; H_{1}: p \neq 0.77 \)
\( H_{0}: p=0.77 ; H_{1}: p<0.77 \)
(b) What sampling distribution will you use?
The standard normal, since \( n p>5 \) and \( n q>5 \).
The Student's \( t \), since \( n p<5 \) and \( n q<5 \).
The Student's \( t \), since \( n p>5 \) and \( n q>5 \).
The standard normal, since \( n p<5 \) and \( n q<5 \).
What is the value of the sample test statistic? (Round your answer to two decimal places.)

Classes
SISK-12 360
Launch
The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that 77 % of all fatally injured automoblle drivers were Intoxicated. A random sample of 54 records of automobile driver fatalities in a certain county showed that 35 involved an intoxicated driver. Do these data Indicate that the population proportion of driver fatalities related to alcohol is less than 77 % in KIt Carson County? Use α=0.10.
USE SALT
(a) What is the level of significance?

0.10

State the null and alternate hypotheses.
H0: p<0.77 ; H1: p=0.77
H0: p=0.77 ; H1: p>0.77
H0: p=0.77 ; H1: p ≠ 0.77
H0: p=0.77 ; H1: p<0.77
(b) What sampling distribution will you use?
The standard normal, since n p>5 and n q>5.
The Student's t, since n p<5 and n q<5.
The Student's t, since n p>5 and n q>5.
The standard normal, since n p<5 and n q<5.
What is the value of the sample test statistic? (Round your answer to two decimal places.)

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