Question

A police officer is concerned about speeds on a certain section of Interstate 95. The data...

A police officer is concerned about speeds on a certain section of Interstate 95. The data accompanying this exercise show the speeds of 40 cars on a Saturday afternoon.

Highway speeds

65
60
63
68
66
70
70
68
69
65
61
68
61
67
65
61
69
70
67
65
60
69
70
68
61
60
66
64
65
68
61
62
62
60
69
62
62
62
69
62

a. The speed limit on this portion of Interstate 95 is 66 mph. Specify the competing hypotheses in order to determine if the average speed is greater than the speed limit.

1)H0: μ = 66; HA: μ ≠ 66

2)H0: μ ≥ 66; HA: μ < 66

3)H0: μ ≤ 66; HA: μ > 66

b-1. Calculate the value of the test statistic. (Round your answer to 3 decimal places.)

b-2. Find the p-value. Pick correct answer

1)0.05  p-value < 0.10

2)p-value  0.10

3)p-value < 0.01

4)0.01  p-value < 0.020

5)0.020 p-value < 0.05

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A police officer is concerned about speeds on a certain section of Interstate 95. The data...
A police officer is concerned about speeds on a certain section of Interstate 95. The data accompanying this exercise show the speeds of 40 cars on a Saturday afternoon. Highway Speed: 73 68 67 74 74 70 68 73 65 69 67 63 66 64 67 65 70 64 63 61 62 63 63 66 64 62 65 62 70 62 66 64 67 61 69 66 61 70 65 61 a. The speed limit on this portion of Interstate...
We found that the sample mean and sample standard deviation for this sample data are 65.16...
We found that the sample mean and sample standard deviation for this sample data are 65.16 inches and 2.54 inches, respectively. Do you find sufficient evidence in the sample data to support the claim that the mean height of female engineering students at UH is greater than 65 inches at α = 0.05? Answer this question using both fixed-? approach and P-value approach. (Hint: for P-value approach, you need to find P-value range using the t-table as demonstrated in the...
A randomly selected sample of college basketball players has the following heights in inches. 65, 63,...
A randomly selected sample of college basketball players has the following heights in inches. 65, 63, 67, 67, 67, 70, 63, 65, 62, 66, 70, 62, 68, 67, 69, 67, 61, 68, 67, 67, 64, 69, 67, 62, 63, 65, 63, 65, 71, 62, 64, 61 Compute a 95% confidence interval for the population mean height of college basketball players based on this sample and fill in the blanks appropriately. ___ < μ < ___ (Keep 3 decimal places)
data on the heights of 37 randomly selected female engineering students at UH: 62 64 61...
data on the heights of 37 randomly selected female engineering students at UH: 62 64 61 67 65 68 61 65 60 65 64 63 59 68 64 66 68 69 65 67 62 66 68 67 66 65 69 65 69 65 67 67 65 63 64 67 65 We found that the sample mean and sample standard deviation for this sample data are 65.16 inches and 2.54 inches, respectively. Do you find sufficient evidence in the sample data...
Refer to the accompanying data set and construct a 95​% confidence interval estimate of the mean...
Refer to the accompanying data set and construct a 95​% confidence interval estimate of the mean pulse rate of adult​ females; then do the same for adult males. Compare the results. Males    Females 81           82 72           94 52           57 59           66 51           54 62           80 52           77 74           85 51           89 62           57 73           35 61           64 62           87 80           74 80           79 63           62 63           67 97           76 43           60 85           65 72           86 66           85 73           69 72          ...
Consider the below vector x, which you can copy and paste directly into Matlab. The vector...
Consider the below vector x, which you can copy and paste directly into Matlab. The vector contains the final grades for each student in a large linear algebra course. x = [61 52 63 58 66 92 64 55 76 60 70 78 76 73 45 63 97 70 100 76 50 64 42 100 67 81 81 59 68 62 72 99 66 76 81 59 47 84 67 75 63 86 73 44 51 69 48 74 61...
Kuya heard that oldest children tend to be more miserable about life than their youngest siblings...
Kuya heard that oldest children tend to be more miserable about life than their youngest siblings (not taking into consideration the number of siblings in between). Kuya gathered data from 33 families and measured their scores on a misery scale. The lower the score, the more miserable the person tends to be. MISERY SCALE SCORES Oldest Youngest 62 62 80 67 70 62 56 66 86 71 79 63 68 64 67 64 62 73 74 71 68 70 69...
Question 9-15 are based on the random sample below which is obtained to test the following...
Question 9-15 are based on the random sample below which is obtained to test the following hypothesis about the population mean. Test the hypothesis that the mean is less than 80. 80 100 81 93 80 57 98 90 71 56 58 78 59 55 55 77 72 78 56 94 98 59 93 86 89 62 60 66 59 71 96 97 94 69 64 77 87 77 64 90 90 95 98 99 56 69 72 81 95...
DaughtersHeight.sav  is a data set on the height of adult daughters and the heights of their mothers...
DaughtersHeight.sav  is a data set on the height of adult daughters and the heights of their mothers and fathers, all in inches. The data were extracted from the US Department of Health and Human Services, Third National Health and Nutrition Examination Survey? Analyze these data with child height as the dependent variable. What can you conclude? Can female daughter height be related to the height of the father and/or the mother? Conduct a separate analysis with Type I and Type III...
Kuya is relocating to China to manage a local branch of world news broadcasting station. He...
Kuya is relocating to China to manage a local branch of world news broadcasting station. He needs to decide on which mobile phone providers he should select based on a sample data of monthly charges from various subscribers. He came to you with the data to determine the provider with the lowest charges, on the average. Which provider would you advise Kuya to select? Mobile Unicom Telecom 62 60 62 55 71 58 69 64 68 58 65 57 56...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT