State the null and alternative hypothesis:

At least 14% of all homeowners have a home security alarm.

H₀:

H_a:

A manufacturer of grandfather clocks claims that the mean time its clocks lose is no more than 0.02 second per day.

H₀:

H_a:

The standard deviation of the 18-hole scores for a golfer is less than 2.1 strokes.

H₀:

H_a:

A government report claims that the proportion of lung cancer cases that are due to smoking is 87%.

H₀:

H_a:

A state park claims that the mean height of the oak trees in the park is at least 85 feet.

H₀:

H_a:

The mean number of years Americans work before retiring is 34.

H₀:

H_a:

At most 60% of Americans vote in presidential elections.

H₀:

H_a:

The mean starting salary for San Jose State University graduates is at least $100,000 per year.

H₀:

H_a:

Private universities' mean tuition cost is more than $20,000 per year.

H₀:

H_a: