Despite some controversy, scientists generally agree that high-fiber cereals reduce the likelihood of various forms of cancer. However, one scientist claims that people who eat high-fiber cereal for breakfast will consume, on average, fewer calories for lunch than people who don't eat high-fiber cereal for breakfast. If this is true, we can add weight-reduction to the other reasons to eat a high-fiber cereal for breakfast. As a preliminary test of the claim, 150 people were randomly selected and asked what they regularly eat for breakfast and lunch. Each person was identified as either a consumer or a nonconsumer of high-fiber cereal, and the number of calories consumed at lunch was measured and recorded. These data can be found at high- fiber.csv↓ Construct a 95% confidence interval for the ratio of the two population variances. Based on your confidence interval, you can draw the following conclusion: O The appropriate technique to test the difference between these two population means is the unequal-variances t-test. O The appropriate technique to test the difference between these two population means is the EQUAL-variances t-test.
Despite some controversy, scientists generally agree that high-fiber cereals reduce the likelihood of various forms of cancer. However, one scientist claims that people who eat high-fiber cereal for breakfast will consume, on average, fewer calories for lunch than people who don't eat high-fiber cereal for breakfast. If this is true, we can add weight-reduction to the other reasons to eat a high-fiber cereal for breakfast. As a preliminary test of the claim, 150 people were randomly selected and asked what they regularly eat for breakfast and lunch. Each person was identified as either a consumer or a nonconsumer of high-fiber cereal, and the number of calories consumed at lunch was measured and recorded. These data can be found at high- fiber.csv↓ Construct a 95% confidence interval for the ratio of the two population variances. Based on your confidence interval, you can draw the following conclusion: O The appropriate technique to test the difference between these two population means is the unequal-variances t-test. O The appropriate technique to test the difference between these two population means is the EQUAL-variances t-test.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 4GP
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[Statistics] How do you solve this using R or RStudio?
Data is found in the following link: https://www.dropbox.com/s/a358oehhaa04fjn/high-fiber.csv?dl=0
![Despite some controversy, scientists generally agree that high-fiber cereals reduce the likelihood of various
forms of cancer. However, one scientist claims that people who eat high-fiber cereal for breakfast will
consume, on average, fewer calories for lunch than people who don't eat high-fiber cereal for breakfast.
If this is true, we can add weight-reduction to the other reasons to eat a high-fiber cereal for breakfast. As a
preliminary test of the claim, 150 people were randomly selected and asked what they regularly eat for
breakfast and lunch. Each person was identified as either a consumer or a nonconsumer of high-fiber cereal,
and the number of calories consumed at lunch was measured and recorded. These data can be found at high-
fiber.csv↓
Construct a 95% confidence interval for the ratio of the two population variances. Based on your confidence
interval, you can draw the following conclusion:
O The appropriate technique to test the difference between these two population means is the unequal-variances t-test.
O The appropriate technique to test the difference between these two population means is the EQUAL-variances t-test.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbd7c584f-2f64-475c-b65e-2946d9e65273%2F6de5317a-ed0d-46fb-bd5c-e41596a14302%2Fumny2eq_processed.png&w=3840&q=75)
Transcribed Image Text:Despite some controversy, scientists generally agree that high-fiber cereals reduce the likelihood of various
forms of cancer. However, one scientist claims that people who eat high-fiber cereal for breakfast will
consume, on average, fewer calories for lunch than people who don't eat high-fiber cereal for breakfast.
If this is true, we can add weight-reduction to the other reasons to eat a high-fiber cereal for breakfast. As a
preliminary test of the claim, 150 people were randomly selected and asked what they regularly eat for
breakfast and lunch. Each person was identified as either a consumer or a nonconsumer of high-fiber cereal,
and the number of calories consumed at lunch was measured and recorded. These data can be found at high-
fiber.csv↓
Construct a 95% confidence interval for the ratio of the two population variances. Based on your confidence
interval, you can draw the following conclusion:
O The appropriate technique to test the difference between these two population means is the unequal-variances t-test.
O The appropriate technique to test the difference between these two population means is the EQUAL-variances t-test.
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