Mathematics, 08.11.2019 01:31 ishaanbaruah4474
Previously, an organization reported that teenagers spent an average of 4.1 hours per week, on average, on the phone. the organization thinks that, currently, the mean is higher. fifteen randomly chosen teenagers were asked how many hours per week they spend on the phone. the sample mean was 5.25 hours with a sample standard deviation of 2.0. what are the null and alternate hypotheses? h0: μ = 5.25, ha: μ > 5.25 h0: x = 5.25, ha: x > 5.25 h0: x = 4.1, ha: x > 4.1 h0: μ ≥ 4.1, ha: μ < 4.1 h0: μ = 4.1, ha: μ > 4.1
Answers: 3
Mathematics, 21.06.2019 16:30
In the figure shown below, m < 40 and ab =8. which equation could be used to find x?
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Mathematics, 21.06.2019 23:50
What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet
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Mathematics, 22.06.2019 01:00
Hich polynomial correctly combines the like terms and expresses the given polynomial in standard form? 8mn5 – 2m6 + 5m2n4 – m3n3 + n6 – 4m6 + 9m2n4 – mn5 – 4m3n3
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Mathematics, 22.06.2019 01:30
The host of a game show is holding a bag with chips to see what prizes the contestants will play for. five (5) of the chips say “new car” ten (10) of the chips say “new tv” three (3) of the chips say “trip to france” contestant named “patty” reaches into the bag. a. what is the probability of choosing a tv chip? b. what is the probability of choosing a car chip next without replacing the 1st chip? c. are these dependent or independent events?
Answers: 1
Previously, an organization reported that teenagers spent an average of 4.1 hours per week, on avera...
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