The average number of cavities that thirty-year-old Americans have had in their lifetimes is 8.  Do twenty-year-olds have a different number of cavities? The data show the results of a survey of 13 twenty-year-olds who were asked how many cavities they have had. Assume that the distribution of the population is normal. 11, 7, 6, 12, 8, 9, 10, 11, 10, 6, 8, 10, 10 What can be concluded at the αα = 0.10 level of significance? The null and alternative hypotheses would be: Please provide number      H0:H0: mean =  __?__  H1:H1:  mean not equal to  __?__   The test statistic t =  __?__(please show your answer to 3 decimal places.) The p-value = __?__ (Please show your answer to 4 decimal places.)

Q: Find the variance for this data set of salaries 30, 34, 52, 48, 25, 36, 27 Round the…

A: The mean of the sample data can be obtained as:

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A: It is needed to define a data set that follow normal distribution.

Q: V. Use the given data to answer item numbers 26 to 29. 4, 4, 5, 6, 9, 9, 9, 12, 13, 14, 14 26. The…

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A: From the provided information, Sample size (n) = 12 Level of significance (α) = 0.05

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A: We have given the following statement

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Q: fly will lay 402 éggs into rotting fruit. A biologist wants to see if the average will change for…

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Q: he average fruit fly will lay 401 eggs into rotting fruit. A biologist wants to see if the average…

A:

Q: 4 4 3 2 2 О-2 3-5 6-8 9-11 12-14

A: Histogram

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Q: what is the mean of this data set 24, -6, 5, 35, 0, -8, 36,7

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Q: The average fruit fly will lay 407 eggs into rotting fruit. A biologist wants to see if the average…

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Q: The average fruit fly will lay 420 eggs into rotting fruit. A biologist wants to see if the average…

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Q: The average fruit fly will lay 418 eggs into rotting fruit. A biologist wants to see if the average…

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Q: The average fruit fly will lay 408 eggs into rotting fruit. A biologist wants to see if the average…

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Q: The average fruit fly will lay 424 eggs into rotting fruit. A biologist wants to see if the average…

A:

Q: The average American gets a haircut every 44 days. Is the average smaller for college students? The…

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Q: b. The null and alternative hypotheses would be: Ho: ?v Select an answer H1: ?v Select an answer ♥…

A:

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