I have attached an image of the excel file. 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. (You may find it useful to reference the appropriate table: z table or t table) Click here for Excel File a. The speed limit on this portion of Interstate 95 is 65 mph. Specify the competing hypotheses in order to determine if the average speed is greater than the speed limit. multiple choice 1H0: μ = 65; HA: μ ≠ 65 IncorrectH0: μ ≥ 65; HA: μ < 65H0: μ ≤ 65; HA: μ > 65 b-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.) b-2. Find the p-value. multiple choice 2p-value < 0.01p-value 0.10 Incorrect0.05 p-value < 0.10 0.025 p-value < 0.05 0.01 p-value < 0.025 1 Highway Speeds269704696866877269681068117412651369146815661666176618681967206821682265236724692565266827692866296930703167326633673467357036673766387039704066417042

Solution First put these data into excel,then run the t test for unequal variances by using a dummy…

Answered: A police officer is concerned about…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

I have attached an image of the excel file.

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. (You may find it useful to reference the appropriate table: z table or t table)

Click here for Excel File

a. The speed limit on this portion of Interstate 95 is 65 mph. Specify the competing hypotheses in order to determine if the average speed is greater than the speed limit.

multiple choice 1

H₀: μ = 65; H_A: μ ≠ 65 Incorrect
H₀: μ ≥ 65; H_A: μ < 65
H₀: μ ≤ 65; H_A: μ > 65

b-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.)

b-2. Find the p-value.

multiple choice 2

p-value < 0.01
p-value

0.10

Incorrect
0.05

p-value < 0.10
0.025

p-value < 0.05
0.01

p-value < 0.025

1 Highway Speeds
2
69
70
4
69
68
6
68
7
72
69
68
10
68
11
74
12
65
13
69
14
68
15
66
16
66
17
66
18
68
19
67
20
68
21
68
22
65
23
67
24
69
25
65
26
68
27
69
28
66
29
69
30
70
31
67
32
66
33
67
34
67
35
70
36
67
37
66
38
70
39
70
40
66
41
70
42

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Statistical Power and Errors$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions