Answered

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For each conjecture, state the null and alternative
hypotheses.
a. The average weight of dogs is 15.6 pounds.
b. The average distance a person lives away from a
toxic waste site is greater than 10.8 miles.
c. The average farm size in 1970 was less than
390 acres.
d. The average number of miles a vehicle is driven
per
year is 12,603
e. The average amount of money a person keeps in his
or her checking account is less than $24.

Sagot :

Answer:

A) Null hypothesis; H0: μ = 15.6 pounds

Alternative hypothesis; Ha: μ ≠ 15.6 pounds

B) Null hypothesis; H0: μ ≥ 10.8 miles

Alternative hypothesis; Ha: μ < 10.8 miles

C) Null hypothesis; H0: μ ≤ 390 acres

Alternative hypothesis; Ha: μ > 390 acres

D) Null hypothesis; H0: μ = 12603

Alternative hypothesis; Ha: μ ≠ 12603

E) Null hypothesis; H0: μ ≤ $24

Alternative hypothesis; Ha: μ > $24

Step-by-step explanation:

A) Null hypothesis; H0: μ = 15.6 pounds

Alternative hypothesis; Ha: μ ≠ 15.6 pounds

B) Null hypothesis; H0: μ ≥ 10.8 miles

Alternative hypothesis; Ha: μ < 10.8 miles

C) Null hypothesis; H0: μ ≤ 390 acres

Alternative hypothesis; Ha: μ > 390 acres

D) Null hypothesis; H0: μ = 12603

Alternative hypothesis; Ha: μ ≠ 12603

E) Null hypothesis; H0: μ ≤ $24

Alternative hypothesis; Ha: μ > $24

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