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Mathematics, 05.05.2020 07:31, mparra4761
The Food and Drug Administration (FDA) is a U. S. government agency that regulates (you guessed it) food and drugs for consumer safety. One thing the FDA regulates is the allowable insect parts in various foods. You may be surprised to know that much of the processed food we eat contains insect parts. An example is flour. When wheat is ground into flour, insects that were in the wheat are ground up as well. The mean number of insect parts allowed in 100 grams (about 3 ounces) of wheat flour is 75. If the FDA finds more than this number, they conduct further tests to determine if the flour is too contaminated by insect parts to be fit for human consumption. The FDA takes a random sample of 35 bags of flour for evaluation and finds that they contain an average of 80 insect parts per 100 grams, with a standard deviation of 6.3. Which hypothesis test should be used to determine whether the sample contains more than the allowed 75 insect parts per 100 grams?
a. ztest for the population mean
b. ttest for the population mean
c. ztest for the population proportion
d. ttest for the population proportion
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Answers: 1
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Mathematics, 22.06.2019 01:00, Richelleypinelley
Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below. trans typ./ check no. date description of transaction payment/ debit deposit/ credit (+) balance 1,200 00 324 10/6 miller's food market 45.87 45 87 groceries 1,154 13 325 10/7 cyber center computer outlet 218.59 218 59 monitor 935 54 326 10/9 sandy's beauty salon 30.00 30 00 haircut and styling 900 59 deposit 10/10 paycheck 621.33 621 33 1,621 92 evaluate leslie's check register. a. leslie did a good job. everything is correct. b. the final balance is wrong; she did not add everything correctly. c. leslie should have written debit instead of deposit for the transaction type. d. leslie switched the debit and credit columns.
Answers: 2
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Mathematics, 22.06.2019 01:50, charrsch9909
Leonardo wrote an equation that has an infinite number of solutions. one of the terms in leonardoβs equation is missing, as shown below.
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