A Nielsen study indicates that mobile subscribers between 18 and 24 years of age spend a...
A Nielsen study indicates that mobile subscribers between 18 and 24 years of age spend a substantial amount of time watching video on their devices, reporting a mean of 396 minutes per month. Assume that the amount of time watching video on a mobile device per month is normally distributed and that the standard deviation is 50 minutes
- What is the probability than and 18-24 year old mobile subscriber spends less than 321 minutes watching a video on his or her mobile device per month?
- What is the probability than and 18-24 year old mobile subscriber spends between 320 minutes and 471 minutes watching video on his or her mobile device per month?
- What is the probability than and 18-24 year old mobile subscriber spends more than 471 minutes watching video on his or her mobile device per month?
- One percent of all 18 to 24 year old mobile subscribers will spend less than how many minutes watching video on his or her mobile device per month
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A Nielsen study indicates that mobile subscribers between 18 and
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A study indicates that 18- to 24- year olds spend a mean of 145 minutes watching video on their smartphones per month. Assume that the amount of time watching video on a smartphone per month is normally distributed and that the standard deviation is 15 minutes. Complete parts (a) through (d) below. a. What is the probability that an 18- to 24-year-old spends less than 120 minutes watching video on his or her smartphone per month? The probability that an...
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