Mathematics, 09.10.2019 01:20 bovalle
According to a survey, the average american person watches tv for 3 hours per week. to test if the amount of tv in new york city is less than the national average, a researcher decides to do a hypothesis test, at a 10% significance level. she surveys 26 new yorkers randomly and asks them about their amount of tv each week, on average. from the data, the sample mean time is 2.5 hours per week, and the sample standard deviation (s) is 1.1 hours.
Answers: 2
Mathematics, 21.06.2019 18:00
Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.
Answers: 2
Mathematics, 22.06.2019 02:00
Sammie has 3 times as many goldfish as nora. nora has 4 goldfish. how many goldfish do sammie and nora have in all?
Answers: 2
Mathematics, 22.06.2019 04:50
Will mark brainliest, , and rate to the best ! wait for pics
Answers: 2
Mathematics, 22.06.2019 05:00
Oliver makes blueberry jam every year. the number of kinds of jam he makes this year can be represented by the expression 4p -9, where p is the number of pints he made last year
Answers: 3
According to a survey, the average american person watches tv for 3 hours per week. to test if the a...
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