Suppose that a manager is interested in estimating the average amount of money customers spend in her store. after sampling 36 transactions at random, she found that the average amount spent was $35.25. she then computed a 95% confidence interval to be between $31.84 and $38.66. which statement gives a valid interpretation of the interval? the store manager is 95% confident that the average amount spent by the 36 sampled customers is between s31.84 and $38.66. there is a 95% chance that the mean amount spent by all customers is between $31.84 and $38.66. o there is a 95% chance that a randomly selected customer will spend between $31.84 and $38.66. the store manager is 95% confident that the average amount spent by all customers is between $31.84 and s3866

The store manager is 95% confident that the average amount spent by all customers is between $31.84 and $38.66 .

Step-by-step explanation:

Given : After sampling 36 transactions at random, she found that the average amount spent was $35.25.

She then computed a 95% confidence interval to be between $31.84 and $38.66.

Interpretation: A person can be 95% confident that the true population mean amount spent by all customers is between $31.84 and $38.66.

So, the valid interpretation of the interval would be :-

The store manager is 95% confident that the average amount spent by all customers is between $31.84 and $38.66 .

c

step-by-step explanation:

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles