Mathematics, 27.02.2021 05:30 auviannadority13
A 95% confidence interval is found to be (28, 32). The sample standard deviation is 7 and the sample size is 49. If you wanted a smaller interval, what could you do? C. Increase sample size to 64
Answers: 2
Mathematics, 21.06.2019 12:30
Suppose there are 10 five and six-year-old attending a birthday party. when a 30 year old mother walks into the room with an infant in her arms, what happens to the mean age in the room? what happens to the standard deviation of ages in the room? a. the mean and standard deviation of both change. b. the meaning will change, but the standard deviation will stay approximately the same. c. i mean will stay approximately the same, but the standard deviation will change. d. the mean and standard deviation will both stay approximately the same.
Answers: 1
Mathematics, 21.06.2019 19:30
Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.
Answers: 1
Mathematics, 21.06.2019 20:00
Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?
Answers: 2
Mathematics, 21.06.2019 22:00
Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.
Answers: 2
A 95% confidence interval is found to be (28, 32). The sample standard deviation is 7 and the sample...
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