Answer:
Step-by-step explanation:
We know that ,
Null hypothesis
is a statement that contains the population parameter to represent claim or against claim statement along with = , ≤ and ≥ signs.
Where as Alternative hypothesis
is also a statement that contains the population parameter but against the null hypothesis . It contains ≠ , < and > signs.
In the given situation, the population parameter is population mean 
.
Claim: The mean pulse rate (in beats per minute, or bpm) of adult males is equal to 69 bpm.
i.e.
and [Against 
]
52,000 • .047 = 2,444
2,444 = decrease in dollars
52,000-2,444 = 49,556
49,556 = price of next model
Hope this helps!
Answer:
Mercury has a diameter of 3,032 miles (4,879 km) making it a little more than one third the size of Earth.
If Earth were the size of a baseball, Mercury would be about the size of a golf ball. The diameter of Mercury is 4,879 km, which is approximately 38% the diameter of Earth. In other words, if you put three Mercury's side by side, they would be a little larger than the Earth from end to end. While this makes Mercury smaller than the largest natural satellites in our system – such as Ganymede and Titan – it is more massive and far more dense than they are.
In fact, Mercury’s mass is approximately 3.3 x 1023 kg (5.5% the mass of Earth) which means that its density – at 5.427 g/cm3 – is the second highest of any planet in the Solar System, only slightly less than Earth’s (5.515 g/cm3). This also means that Mercury’s surface gravity is 3.7 m/s2, which is the equivalent of 38% of Earth’s gravity (0.38 g). This means that if you weighed 100 kg (220 lbs) on Earth, you would weigh 38 kg (84 lbs) on Mercury.
