Answer:
We are given that a Psychologist claims that less than 5.8 percent of the population suffers from professional problem due to extreme shyness.
We are supposed to set up the null and alternative hypotheses.
Since the claim is less than 5.8 percent, therefore, the claim will be mentioned in the alternative hypothesis. Hence the null and alternative hypotheses are given below:


Therefore, the option a. H0: p = 5.8% H1: p < 5.8% is correct
What diagram can you add a picture of it ?
[ (12 - n)/7 ] = -1
12- n = -7
-n = -19
n = 19
It would take them 1 hour and 30 min to get across, and 2 hours to cross back. In total it would take them 3 hours and 30 min to complete the trip.
Radius is MN
Cord is TR
Hope this helps
Only two questions came up