WorksheetsChi-Square Goodness of Fit--Apps SL
Total questions: 13
Worksheet time: 10mins
How many degrees of freedom will be present?
4
5
6
7
How do you find degrees of freedom for a chi-square goodness of fit test?
one less than the sample size
one less than the population
total number divided 2
total number times 2
Aw, nuts! A company claims that each batch of its deluxe mixed nuts contains 52% cashews, 27% almonds, 13% macadamia nuts, and 8% brazil nuts. To test this claim, a quality-control inspector takes a random sample of 150 nuts from the latest batch. The one-way table below displays the sample data. What is the appropriate null hypothesis
U1-U2=U3=U4
Mixed nut proportions are proportioned the same as they claim
At least one of the four types in the population is different than expect
the observed counts are equally distributed
Python eggs How is the hatching of water python eggs influenced by the temperature of the snake’s nest? Researchers randomly assigned newly laid eggs to one of three water temperatures: hot, neutral, or cold. Hot duplicates the extra warmth provided by the mother python, and cold duplicates the absence of the mother. Here are the data on the number of eggs that hatched and didn’t hatch.
If the p-value is .08 and you use .05 as your alpha, what is your conclusion
Fail to reject: We do not have sufficient evidence that distribution of hatched is different for water temperature options
Reject: We do not have sufficient evidence that distribution of hatched is different for water temperature options
Fail to reject: We do have sufficient evidence that distribution of hatched is different for water temperature options
For this Chi-Square Goodness of Fit Test, how many degrees of freedom are there?
1
2
3
More information is needed to determine.
Which of the following makes for a reasonable null hypothesis for a Chi-Square Goodness of Fit Test?
The distribution of political views this year is 0.24 liberal, 0.38 moderate, 0.38 conservative.
The distribution of political views this year differs from a distribution of 0.24 liberal, 0.38 moderate, 0.38 conservative.
The distribution of political views this year is independent of gender.
This is not a situation where using a Chi-Square Goodness of Fit Test is appropriate.
How did the person's calculator determine the expected frequencies for this Chi-Square Goodness of Fit Test?
The student inputs the expected frequencies and the calculator determines the observed frequencies.
It doubles each observed value.
The calculator can not determine expected frequencies. The student had to input both observed and expected frequencies.
The calculator takes each row total/grand total and multiples by column total.
Given a significance level of 5%, should we accept or reject the null hypothesis.
Since the p-value of 0.231 is greater than the significance level of 0.05, we should accept the null hypothesis.
Since the p-value of 0.447 is greater than the significance level of 0.05, we should accept the null hypothesis.
Since the p-value of 0.231 is less than the significance level of 5%, we should accept the null hypothesis.
Since the p-value of 0.447 is greater than the significance level of 0.05, we should reject the null hypothesis.
