It is estimated that 15% of teens own iphone. In the MDM4U class there are 25 teens who own smartphones. How many of these 25 students do you expect to own an l-phone? 3.75 O 21.25 O 15 O5.25
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A: given data n1 = 116 x1 = 80p^1 = x1n1 = 80116 = 0.6897 n2 = 137 x2 = 91 p^2 = x2n2 = 91137 =…
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Q: Assuming the requirements are met for the penny study, what is the upper bound for a 90% confidence…
A: given data n1 =116 x1 =80p^1 = x1n1 = 80116 =0.6897 n2 = 137 x2 = 91 p^2 = x2n2 = 91137 =…
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- Empathy means being able to understand what others feel. To see how the brain expresses empathy, researchers recruited 16 couples in their midtwenties who were married or had been dating for at least two years. They zapped the man's hand with an electrode while the woman watched, and measured the activity in several parts of the woman's brain that would respond to her own pain. Brain activity was recorded as a fraction of the activity observed when the woman herself was zapped with the electrode. The women also completed a psychological test that measures empathy. Subject 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Empathy Score 43 46 35 59 64 66 58 47 44 49 56 68 28 71 27 108 Brain Activity -0.129 0.389 0.019 0.378 0.016 0.419 0.109 0.515 0.149 0.746 0.245 0.57 0.219 0.716 0.364 0.762 Given that the equation for the regression line is y^=0.00709x−0.04187y^=0.00709x−0.04187, what is the residual (or deviation), yi−y^iyi−y^i, for subject 14?ANSWER: SpeakHi please see attached. Thankyou!A study in 2014 indicated that 19% of American households have a landline telephone that they do not intend to disconnect. In a random sample of 581 American households, how many would we expect to have a landline telephone they do not plan to get rid of? Round your answer to one decimal place.
- A certain basketball team makes 70% of its free throws on average. In a game where the team shoots 40 free throws. what is the approximate probabillity that the number of free throws made by the team wilbe at least 25%Please see the pictures. One contains the information needed and I need help with Part 4. The answer IS NOT 0.3173 OR 0.1507. please be certain of your work as I only have one attempt remaining.A random sample of BYU-Idaho students was surveyed and asked if they were in favor of retaining the penny as a form of currency in the United States. Out of the 116 women surveyed, 80 said that they were in favor of retaining the penny as a form of currency. Of the 137 men surveyed, 91 said that they were in favor of retaining the penny. Difference = Women - Men The picture below is the question. Use the information above to help.
- a report about an isolated community claims there are more newborn females than males although we assume equal frequencies for each. Records indicate 628 boys and 718 girls born in the past month. what are Ho and Ha?An interdepartmental task force is being formed to investigate an increase in violent crimes. 1/5 of the task force will be police officers from the local precinct. 1/4 will be ATF agents, and the remaining 22 will be from the FBI. How many people are participating in the task force?A hospital report indicates 25% of its patients had an MRI in January. If 1,060 patients were hospitalized in January, how many had an MRI?