Hi Can I please get hep with the following questions. Can I also get help on how to process on excel with formulas?

Hypothesis Testing:

1.A tire company makes 5000 tires an hour on average with a known standard deviation of 50. A sample is taken last hour and 5100 tires were mad.

Spell out the null and alternate hypotheses that the mean is different than. Evaluate the hypothesis (Accept or Reject)at the following significance levels:

a.0.01

b.0.05

2.Samples of a car company's output is taken and 490 cars are made in a day with a known standard deviation of 16 cars.

Spell out the null and alternate hypotheses that the average production of the car company is less than 475 cars.

Evaluate the hypothesis (Accept or Reject) at the following significance levels

a.0.001

b.0.1