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pzjs2qr5fzLv1
28 Nov 2022
A county is considering rasing the speed limit on a road because they claim that the mean speed of vehicles is greater than 45 miles per hour. A random sample of 20 vehicles has a mean speed of 50 miles per hour and a standard deviation of 5.2 miles per hour. At 
= 0.10, do you have enough evidence to support the county's claim? Complete parts (a) through (d) below.
(c) Decide whether to reject or fail to reject the null hypothesis.
A. Reject 
because the P-value is greater than the significance level, 0.10.
B. Reject because the P-value is less than the significance level, 0.10.
C. Fail to reject because the P-value is greater than the significance level, 0.10.
D. Fail to reject because the P-value is less than the significance level, 0.10.
(d) Interpret the decision in the context of the original claim.
A. There is sufficient evidence to support the county's claim that the mhen speed of vehicles is less than 45 miles per hour.
B. There is sufficient evidence to support the county's claim that the mean speed of vehicles is greater than 45 miles per hour.
C. There is not sufficient evidence to support the county's claim that the mean speed of vehicles is greater than 45 miles per hour.
D. There is not sufficient evidence to support the county's claim that the mean speed of vehicles is less than 45 miles per hour.
A county is considering rasing the speed limit on a road because they claim that the mean speed of vehicles is greater than 45 miles per hour. A random sample of 20 vehicles has a mean speed of 50 miles per hour and a standard deviation of 5.2 miles per hour. At = 0.10, do you have enough evidence to support the county's claim? Complete parts (a) through (d) below.
(c) Decide whether to reject or fail to reject the null hypothesis.
A. Reject because the P-value is greater than the significance level, 0.10.
because the P-value is greater than the significance level, 0.10.B. Reject because the P-value is less than the significance level, 0.10.
because the P-value is less than the significance level, 0.10.C. Fail to reject because the P-value is greater than the significance level, 0.10.
because the P-value is greater than the significance level, 0.10.D. Fail to reject because the P-value is less than the significance level, 0.10.
because the P-value is less than the significance level, 0.10.(d) Interpret the decision in the context of the original claim.
A. There is sufficient evidence to support the county's claim that the mhen speed of vehicles is less than 45 miles per hour.
B. There is sufficient evidence to support the county's claim that the mean speed of vehicles is greater than 45 miles per hour.
C. There is not sufficient evidence to support the county's claim that the mean speed of vehicles is greater than 45 miles per hour.
D. There is not sufficient evidence to support the county's claim that the mean speed of vehicles is less than 45 miles per hour.
30 Dec 2022
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asifasabirLv10
30 Nov 2022
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