(based on q14) the international coffee association has reported the mean daily coffee consumption for u. s. residents as 1.65 cups. assume that a sample of 38 people from a north carolina city consumed a mean of 1.84 cups of coffee per day, with a standard deviation of 0.85 cups. in a two-tail test at the 0.05 level, could the residents of this city be said to be significantly different from their counterparts across the nation?

We fail to reject null hypothesis.

Step-by-step explanation:

Consider the provided information.

The mean daily coffee consumption for U.S. residents as 1.65 cups. Assume that a sample of 38 people from a North Carolina city consumed a mean of 1.84 cups of coffee per day, with a standard deviation of 0.85 cups.

According to the formula:

Substitute n=38, x = 1.84, μ = 1.65 and σ = 0.85 in above formula.

Now find degree of freedom (df)

df=n-1=37

α = 0.025

The appropriate t value with df =37 and α = 0.025 is 2.026

The t value which we calculated is less than 2.026, Hence, we fail to reject null hypothesis.

if you explain the the question more correctly i might be able to answer this better

step-by-step explanation:

1/8 3/16 3/4

step-by-step explanation:

you put them as all the same denominator and multiply