Munching Froot Loops Kellogg’s Froot Loops cereal comes in six colors:

orange, yellow, purple, red, blue, and green. Charise randomly selected 120 loops and noted the color of each. Here are her data:

Do these data provide convincing evidence at the 5% significance level that Kellogg’s Froot Loops do not contain an equal proportion of each color?

Short Answer

Expert verified

There is insufficient evidence to refute Kellogg's assertion that its Froot Loop includes an equal quantity of each flavor.

Step by step solution

01

Given information

Significance level: 5% = 0.05

02

Concept

Null hypothesis: H0

When the value of P is less than or equal to the significance level, the null hypothesis is rejected.

03

Explanation

The Pvalue is used to calculate the likelihood of a test statistic or a more extreme number.

The P-value in the appendix, which contains the X2value in the row df=5may be found in the chi-square distribution table.

0.15<P<0.20

When the value of Pis not less than or equal to the significance level, the null hypothesis is not rejected.

P>0.05: fail to reject H0

Hence, There is insufficient evidence to disprove the company's assertion that Kellogg's produces Froot Loop.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Fewer TVs? The United States Energy Information Administration periodically surveys a random sample of U.S. households to determine how they use energy. One of the variables they track is how many TVs are in a household (None, 1,2,3,4,or5or more). The computer output compares the distribution of number of TVs for households in 2009and2015.

Cell Contents: Count

Expected count

Contribution to Chi-square

Chi-Squarerole="math" localid="1654195309908" =137.137, DF =5, P-Value =0.000

a. Which chi-square test is appropriate to analyze these data? Explain your answer.

b. Show how the numbers 252and 14.113were obtained for the 2009/Nonecell.

c. Which 3cells contribute most to the chi-square test statistic? How do the observed and expected counts compare for these cells?

Testing a genetic model Biologists wish to cross pairs of tobacco plants having genetic makeup Gg, indicating that each plant has one dominant gene (G) and one recessive gene (g) for color. Each offspring plant will receive one gene for color from each parent. The Punnett square shows the possible combinations of genes received by the offspring.

The Punnett square suggests that the expected ratio of green (GG) to yellow-green (Gg) to albino (gg) tobacco plants should be 1:2:1. In other words, the biologists predict that 25%of the offspring will be green, 50%will be yellow-green, and 25%will be albino. To test their hypothesis about the distribution of offspring, the biologists mate 84randomly selected pairs of yellow-green parent plants. Of 84offspring, 23plants were green, 50were yellow-green, and 11 were albino. Do the data provide convincing evidence at the α=0.01 level that the true distribution of offspring is different from what the biologists predict?

A large distributor of gasoline claims that 60%of all drivers stopping at their service stations choose regular unleaded gas and that premium and supreme are each selected 20%of the time. To investigate this claim, researchers collected data from a random sample of drivers who put gas in their vehicles at the distributor’s service stations in a large city. The results were as follows.

Carry out a test of the distributor’s claim at the 5%significance level.

Last candy Refer to Exercises 27 and 29.

a. Verify that the conditions for inference are met.

b. Use Table C to find the P-value. Then use your calculator’s χ2 cdf command.

c. Interpret the P-value from the calculator.

d. What conclusion would you draw using α=0.01?

Finger length Is your index finger longer than your ring finger? Or is it the other way around? It isn't the same for everyone. To investigate if there is a relationship between gender and relative finger length, we selected a random sample of 460U.S. high school students who completed a survey. The two-way table shows the results.


Do these data provide convincing evidence at the α=0.10level of an association between gender and relative finger length in the population of students who completed the survey?

See all solutions

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free