Find (a) the angular velocity (rad/s) and (b) the linear velocity (miles/hour) of a person standing in Sylmar (latitude 34 degrees north on Earth). Take R of Earth to be 4000 miles.
Ans should be about (a) 7.27 X 10-5 rad/s (b) ~ 900 mi/hr
In: Physics
Q.5. From a sample of 100 tires the mean life time was 46000 miles with a standard deviation of 5500 miles. Test the hypothesis μ = 45000 against the alternate μ > 45000 at (i) 0.05 and (ii) 0.01 level of significance. ?
solve the above problem step by step in proper format
In: Statistics and Probability
he results of ANOVA test are summarized in Table 1.
Table 1. Shows the results of ANOVA for three different procedures
| Source | Sum of Square | d.f | Mean Square | F |
|---|---|---|---|---|
| Between | 160.13 | 80.97 | 9.17 | |
| Within (error) | 104.80 | 8.73 | ||
| Total | 264.93 | 14 |
The degrees of freedom for between and within are:
Select one:
A. 1 and 13 respectively
B. 2 and 12 respectively
C. 3 and 11 respectively
D. 4 and 10 respectively
QUESTION 42
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A research group claims by taking a special vitamin, a weight lifter can increase his strength. After two weeks of training, supplemented with vitamin, they tested again. Test the effectiveness of the regiment at α = 0.05. Assume that the variable is normally distributed. The alternative hypothesis is :
Select one:
a. H0: µD ≥ 0
b. H0: µD = 0
c. H0: µD ≠ 0
d. H0: µD ≤ 0
QUESTION 43
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What is nP0? NEED TO FIND THEM N AND po
Select one:
A. 1
B. no answer
C. n
D. 0
QUESTION 44
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The data for a sample of 100 gave the regression line equation for age and blood pressure is Ÿ = 100 + 0.96X, and the standard error is 5. The 95% confidence interval of the prediction of the blood pressure of a person who is 43 years old showed that the lower confidence limit is :
Select one:
A. 125.67
B. 141.34
C. 142.34
D. 131.48
QUESTION 45
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A researcher wants to investigate if there is a difference in the rates of hotel room in two cities. A sample of 50 were selected from each city, the average hotel room in the first city is RM88.42 and in the second city is RM80.61 and the standard deviation are RM5.62 and RM4. The null hypothesis for the difference between the means is
Select one:
A. µ1 - µ2 ≤ 0
B. µ1 - µ2 = 0
C. µ1 - µ2 ≥ 0
D. µ1 - µ2 ≠ 0
QUESTION 46
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When a distribution is bell-shaped approximately what percentage of data values will fall within one standard deviation of the mean?
Select one:
A. 95%
B. 68%
C. 99.7%
D. 50%
QUESTION 47
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A repair team is responsible for a stretch of oil pipeline 2 miles long. The distance (in miles) at which any fracture occurs can be represented by a uniformly distributed random variable f(x) = 0.5
What is the probability that any given fracture occurs between 0.5 mile and 1.5 miles along this stretch pipeline?
Select one:
A. 0.2
B. 0.5
C. 0.1
D. 0.7
QUESTION 48
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In an advertisement, a retail store stated that its employees averaged nine years of service. The distribution is shown here.
| Number of Employees | Years of Service |
|---|---|
| 8 | 2 |
| 2 | 6 |
| 3 | 10 |
Using the weighted mean, the correct average is .........
Select one:
A. 4.5
B. 3.5
C. 5.4
D. 5.3
QUESTION 49
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The data for a sample of 100 gave the regression line equation for age and blood pressure is Ÿ = 100 + 0.96X, and the standard error is 5. The 95% confidence interval of the prediction of the blood pressure of a person who is 43 years old showed that the upper confidence limit is :
Select one:
A. 159.08
B. 149.09
C. 151.08
D. 155.08
QUESTION 50
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The variance for the data values “ 87, 85, 80, 78, 86, 90” is :
Select one:
A. 4.1
B. 12
C. 85
D. 17.1
In: Statistics and Probability
For a car that travels 70 mph for 60 miles and then 80 mph for 60 miles. The total time traveled is given by calculating the distance per rate traveled for each part and then summing the values. •Have the program in c++ that calculates the most appropriate mean rate of the two different rates and the two equal distances, and output the result to the text file. The “best” mean rate is the rate at which T=D/R is same as if you did it separately where D is the total distance. Output all the data to the text file (include expected results on the display screen).•Example: The program should print something like•A car travels 40mph for 10 miles and 50 mph for 10 miles.•The total time traveled given by T=D1/R1 + D2/R2 is [your answer].•The best mean rate R is [your answer].•The total time given by this mean and T=D/R is [your answer]
In: Computer Science
(in java) Find the maximum value and minimum value in milesTracker. Assign the maximum value to maxMiles, and the minimum value to minMiles. Sample output for the given program:
Min miles: -10
Max miles: 40
given code below (please bold the solution, thank you!)
import java.util.Scanner;
public class ArraysKeyValue {
public static void main (String [] args) {
Scanner scnr = new Scanner(System.in);
final int NUM_ROWS = 2;
final int NUM_COLS = 2;
int [][] milesTracker = new int[NUM_ROWS][NUM_COLS];
int i;
int j;
int maxMiles; // Assign with first element in milesTracker before
loop
int minMiles; // Assign with first element in milesTracker before
loop
for (i = 0; i < milesTracker.length; i++){
for (j = 0; j < milesTracker[i].length; j++){
milesTracker[i][j] = scnr.nextInt();
}
}
/* Your solution goes here */
System.out.println("Min miles: " + minMiles);
System.out.println("Max miles: " + maxMiles);
}
}
In: Computer Science
Program 3.5 - Conversion Program - NOW using cin statements to gather input from user
Concepts Covered: Chapter 2 – cout , math, data types, Chapter 3 , gathering both numeric & string input from user
Programs 2-21, 2-22, 2-23, 2-28 should help with math and programs 3.5, 3.17 and 3.19 should help you with the new concepts introduced with this program.
Program Purpose: To help you understand the concept of using both proper numeric variables and string variables. To give you practice using the C++ math operators. To give you practice getting both numeric input and string input from a user. To give you practice overriding the default behavior of C++ for numeric formatting. Lastly, to appreciate the flexibility of the cout object by passing it string variables, string literals, and numeric variables.
Background: Your instructor is an avid (some would say obsessed) bicyclist. Rides of 40 to 50 miles are not uncommon. Your instructor also uses an indoor training program called Zwift. It uses the metric system which is kilometers biked (instead of miles), and meters climbed (instead of feet). You need to help out your metrically challenged professor and write a conversion program that converts kilometers to miles and meters to feet.
For example, if I told some of my non-biking friends that I rode 40 kilometers, many of them would be impressed. Well, in miles that is only 24.8 miles. Conversely, if I told them I climbed 1000 meters they may not be impressed. But, 1000 meters is 3,280 feet which is not too shabby here in the Midwest.
Oh, did I mention, this also applies to runners, especially in terms of kilometers.
So your job commission is to write a C++ program which will convert kilometers to miles and meters to feet.
PROGRAM SPECIFICATIONS:
Insert program heading with your name, course, section, program name, AS WELL AS brief documentation of program purpose at the top of your program.
Create your c++ code.
INPUT SECTION
Create 4 numeric variables to hold the following: meters, feet, kilometers, and miles.
Create 2 string variables: one to hold the activity type: biking or running and the other to hold a person’s name.
Prompt the user for their name. You should get the user's full name! Example Jimmy C or John Bonham
Prompt the user (using their name) for which activity they did. - biking or running
Prompt the user for how many kilometers
Prompt the user for how many meters they climbed
PROCESSING SECTION
Perform the necessary math operations to convert kilometers to miles and meters to feet.
Kilometers to miles formula:
1 kilometer is equal to 0.621371 miles (often shortened to .62). 1 mile is equal to 1.609344 kilometers. Thus, to convert kilometers to miles, simply multiply the number of kilometers by 0.62137.
Meters to feet formula:
Multiply any meter measurement by 3.28 to convert to feet. Since one meter = 3.28 feet, you can convert any meter measurement into feet by multiplying it by 3.28.
1 meter x 3.28 = 3.28 feet
5 meters x 3.28 = 16.4 feet
2.7 meters x 3.28 = 8.856 feet
OUTPUT SECTION
Using cout statements, display the output listing name, activity, kilometers, miles, meters and feet. For formatting of numeric variables, use 2 digits of precision to right of decimal point.with values shown above.
In: Computer Science
Use the information below to produce the Simple Exponential Smoothing forecast assuming Alpha=0.3. Enter period 4's forecasted value below. The initialization value for period 1 is given as the actual value for period 1. Round your answer to two decimal places (e.g., 1.23).
Alpha=0.3
| Period | X | SES |
| 1 | 1.4 | 1.4 |
| 2 | 7.9 | |
| 3 | 1.5 | |
| 4 | ? |
In: Economics
If x is a binomial random variable, compute P(x) for each of the following cases:
(a) P(x≤5),n=7,p=0.3
P(x)=
(b) P(x>6),n=9,p=0.2
P(x)=
(c) P(x<6),n=8,p=0.1
P(x)=
(d) P(x≥5),n=9,p=0.3
P(x)=
In: Statistics and Probability
Are the event “Political Affiliation” and “views on tariff” independent evets? Use statistical evidence to justify your answer.
|
Opinion
|
||||
|
Political Affiliation |
F |
O |
U |
Total |
|
Democrat (D) |
0.12 |
0.09 |
0.07 |
0.28 |
|
Republican (R) |
0.16 |
0.12 |
0.14 |
0.42 |
|
Independent (I) |
0.04 |
0.03 |
0.06 |
0.13 |
|
Green (G) |
0.08 |
0.06 |
0.03 |
0.17 |
|
Total |
0.4 |
0.3 |
0.3 |
1 |
In: Statistics and Probability
You're the manager of global opportunities for a U.S. manufacturer, who is considering expanding sales into Asia. Your market research has identified the market potential in Malaysia, Philippines, and Singapore as described next:
|
Success Level |
|
Big Mediocre Failure |
|
Malaysia Probability 0.3 0.3 0.4 Units 1,200,000 600,000 0 Philippines Probability 0.3 0.5 0.2 Units 1,000,000 320,000 0 Singapore Probability 0.7 0.2 0.1 Units 700,000 400,000 0 |
The product sells for $10 and has unit costs of $8. If you can enter only one market, and the cost of entering the market, (regardless of which market you select) is $250,000, should you enter one of these markets? If so, which one? if you enter, what is your expected profit?
In: Economics