Amuseum opened at 8.00 a.m. in the first hour, 350 people purchaced admission tickets. in the second hour, 20% more people purchased admission tickets than the first hour. each admission cost $17.50.

1st hour 350 purched tickets @ $17.50 each = $6,125

the second hour 20% more people purchased tickets than the first hour - 350 x 20%=70 more than 1st hour.so 70 x $17.50=$1,225 so total sales is $6,125 + 1,225=$7350

The inference procedure for analyzing the investigation result is;

B. A one-sample t-interval for a sample mean

Step-by-step explanation:

A t-test is used to find or compare the significant difference between the mean of two samples, to determine if difference is significant statistically or if the difference is due to chance

A statistician can also verify if there is a difference between two means by making a comparison of the confidence intervals of the two samples

 Whereby there is an overlap in the confidence interval of the two samples then there is no significant difference in the mean of the two samples

However, if the confidence interval of the two samples do not overlap, there is a difference in the mean of the group

The appropriate method for analyzing the result of the investigation is a one-sample t-interval for sample mean