Mathematics

Mathematics, 29.06.2019 18:00, iilovejohnccena1022

Brainliest + [20] explain! the gym has 11 different types of machines in the weight room. geoff has time to use only 3 of them this afternoon. how many different combinations of machines can geoff choose from to use? show your work or explain how you got your answer.

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Mathematics, 29.06.2019 14:30, Fahaddie

Using the letters in the word innovative, find the number of permutations that can be formed using 4 letters at a time. show your work or explain how you got your answer. the gym has 11 different types of machines in the weight room. geoff has time to use only 3 of them this afternoon. how many different combinations of machines can geoff choose from to use? show your work or explain how you got your answer

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Mathematics, 29.06.2019 15:30, amandafutch24

Brainliest + 25 points! no kidding! and explain! the gym has 11 different types of machines in the weight room. geoff has time to use only 3 of them this afternoon. how many different combinations of machines can geoff choose from to use? show your work or explain how you got your answer.

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Mathematics, 15.10.2019 21:30, raquelqueengucci25

Geoff is the proud owner of a restaurant. recently he read an article in food weekly which stated that the population mean preparation time for food at popular restaurants is equal to 24 minutes. a footnote at the bottom of the article said that the population standard deviation of preparation times was equal to 6 minutes. geoff is interested in determining whether his restaurant has the same average preparation time as the popular restaurants described in the magazine article. geoff timed how long it took to prepare 39 randomly selected meals over a week. the mean preparation time for the sample was calculated as 22 minutes. geoff would like to use his sample to construct a hypothesis test with h0: μ = 24 and ha: μ ≠ 24. a)calculate the p-value that corresponds to the sample and hypotheses. give your answer as a decimal to 4 decimal places. p-value = b)using the p-value for geoff's hypothesis test and a level α = 0.05, geoff should the null hypothesis.

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Mathematics, 06.11.2019 20:31, krystalruby1219

Two different box-filling machines are used to fill cereal boxes on an assembly line. the critical measurement influenced by these machines is the weight of the product in the boxes. engineers are quite certain that the variance of the weight of product is σ 2 = 8 ounces. experiments are conducted using both machines with sample sizes of 81 each. the sample averages for machines a and b are x¯ a = 7.4 ounces and x¯ b = 7.5 ounces. engineers are surprised that the two sample averages for the filling machines are different.(a) use the central limit theorem to determinep(x^b−x^a≥0.2)under the condition that μa=μb.(b) do the aforementioned experiments seem to, in anyway, strongly support a conjecture that the populationmeans for the two machines are different? explain using your answer in (a).

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