Question
In: Statistics and Probability
30 school age girls and 30 school age boys were surveyed to see who spend more...
30
school age girls and 30 school age boys were surveyed to see who
spend more time playing video games. Among girls, the mean hours
spent on video games per week is 15.6 and among boys the mean was
43.4. The standard deviation is 10.17 for girls and 39.64 for the
boys. Can you conclude that the mean length in time school age
girls play video games less than the mean lenght in time of school
age boys? Use a significant level of 5%. Also, Find and interpret a
95% confidence interval for the difference between the mean lenght
in time girls and boys spent playing video games.
Solutions
orchestra answered 1 year agoRelated Solutions
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I’m
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I need explanation and calculation, the calculation and
explanation should equal atleast 300 words, nothing less and
nothing irrelevant please, otherwise i will give thumbs down
The average amount of time boys and girls aged 7 to 11 spend playing sports each...
The average amount of time boys and girls aged 7 to 11 spend
playing sports each day is believed to
be the same. A study is done and data are collected, resulting in
the data in the following table.
Sample Size
Average Number of Hours Playing
Sports per day
Sample Standard
Deviation
Girls
9
2
0.866
Boys
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3.2
1.00
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from independent random samples of 770 boys and 749 girls from a
country, age 12 to 19. Of the boys, 397 reported that they almost
always listen to music at a high volume setting. Of the girls, 331
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data support the authors' conclusion that the...
The authors of a paper concluded that more boys than girls listen to music at high...
The authors of a paper concluded that more boys than girls
listen to music at high volumes. This conclusion was based on data
from independent random samples of 767 boys and 750 girls from a
country, age 12 to 19. Of the boys, 397 reported that they almost
always listen to music at a high volume setting. Of the girls, 331
reported listening to music at a high volume setting.
Do the sample data support the authors' conclusion that the...
The authors of a paper concluded that more boys than girls listen to music at high...
The authors of a paper concluded that more boys than girls
listen to music at high volumes. This conclusion was based on data
from independent random samples of 770 boys and 748 girls from a
country, age 12 to 19. Of the boys, 397 reported that they almost
always listen to music at a high volume setting. Of the girls, 331
reported listening to music at a high volume setting.
Do the sample data support the authors' conclusion that the...
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