One hundred tomato plants were randomly selected from a large garden, and a 90% confidence interval was computed to determine the true proportion of plants that produce useable tomatoes. The interval is 0.86 to 0.92. What would happen to the width of the confidence interval if the confidence level increased to 95%?

The width of the interval would increase.

Step-by-step explanation:

for the first question it would be the second answer for the second question it would be the third answer and for the third question it would be the first answer

step-by-step explanation:

so, converting firstly the mixed fractions to improper fractions and then "adding".