A gasoline distributor wonders whether an individual’s income levels influences the grade of gasoline purchased. Using...
A gasoline distributor wonders whether an individual’s income levels influences the grade of gasoline purchased. Using α = .01, the critical chi-square value is ___.
15.09
7.88
9.21
16.81
17.89
Homework Answers
The answer is 16•81, since, this is the critical value of the chi-square at 0.01 level of significance with 6 degree of freedom.
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A gasoline distributor wonders whether an individual’s income
levels influences the grade of gasoline purchased. Using...
My degree of freedom is 0.18 but I don't know the p value nor the conclusion....
My degree of freedom is 0.18 but I don't know the p value nor
the conclusion. I have the chi square distribution for the p value
below but I'm very confused on what any of this means
10 In Data Table 2, record whether your calculated p-value was greater than (>) or less than (=) 0.05. Using the p-value of 0.05 as a benchmark, determine if there was a statistically significant difference in the expected and observed results. (Refer to...
4. Repeated-measures ANOVA Aa Aa Suppose you are interested in studying whether lighting brightness affects spatial reasoning abilities. You decide to test spatial reasoning using completion time sco...
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A bottled water distributor wants to determine whether the mean amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company is actually 1 gallon. You know f...
A bottled water distributor wants to determine whether the mean amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company is actually 1 gallon. You know from the water bottling company specifications that the standard deviation of the amount of water is 0.02 gallon. You select a random sample of 45 bottles, and the mean amount of water per 1-gallon bottle is 0.994 gallon. Complete parts (a) through (d) below. a. Is there evidence that...
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The type of household for the U.S. population and for a random sample of 411 households from the community Dove Creek, Montana, are shown (based on Statistical Abstract of the United States) Observed Number of Percent of U.S. Households in Type of Househol Households Dove Creek 102 26% Married with children 112 29% Married, no children Single parent 9% One person 25% 96 11% Other (e.g., roommates, siblings) 68 Use a 5% level of significance to test the claim that...
My degree of freedom is 0.18 but I don't know the p value nor
the conclusion. I have the chi square distribution for the p value
below but I'm very confused on what any of this means
10 In Data Table 2, record whether your calculated p-value was greater than (>) or less than (=) 0.05. Using the p-value of 0.05 as a benchmark, determine if there was a statistically significant difference in the expected and observed results. (Refer to...
4. Repeated-measures ANOVA Aa Aa Suppose you are interested in studying whether lighting brightness affects spatial reasoning abilities. You decide to test spatial reasoning using completion time scores for the paper-folding test with five people, repeating the test on each person with three different lighting levels (800, 1,000, and 1,200 lux) In this experiment, the null hypothesis is that: O There are no individual differences in the completion time means O The completion time mean for at least one lighting...
A bottled water distributor wants to determine whether the mean amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company is actually 1 gallon. You know from the water bottling company specifications that the standard deviation of the amount of water is 0.02 gallon. You select a random sample of 45 bottles, and the mean amount of water per 1-gallon bottle is 0.994 gallon. Complete parts (a) through (d) below. a. Is there evidence that...
The type of household for the U.S. population and for a random sample of 411 households from the community Dove Creek, Montana, are shown (based on Statistical Abstract of the United States) Observed Number of Percent of U.S. Households in Type of Househol Households Dove Creek 102 26% Married with children 112 29% Married, no children Single parent 9% One person 25% 96 11% Other (e.g., roommates, siblings) 68 Use a 5% level of significance to test the claim that...
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