I need clearly explain pls, thank you so much.

Here aretwo scenarios that can be answered using an appropriate hypothesis test: One is a 2 sample t-test for the difference between two means, one is a 2proportionz-test, and one is a paired t-test with paired data (not necessarily in this order):

1. Use the following information to answer the next five exercises. A doctor wants to know if a blood pressure medication is effective. Six subjects have their blood pressures recorded. After twelve weeks on the medication, the same six subjects have their blood pressure recorded again. For this test, only systolic pressure is of concern. Test at the 1% significance level.

Table 1: Blood pressure of six patients A-F, before and after using the medication.

Patient	A	B	C	D	E	F
Before	161	162	165	162	166	171
After	158	159	166	160	167	169

2. A research study was conducted about gender differences in "sexting." The researcher believed that the proportion of girls involved in "sexting" is less than the proportion of boys involved. The data collected in the spring of 2010 among a random sample of middle and high school students in a large school district in the southern United States is summarized in Table. Is the proportion of girls sending sexts less than the proportion of boys "sexting?" Test at a 1% level of significance. Table 2: Frequency of "sexts" sent by gender

Gender	Males	Females
Sent "sexts"	183	156
Total number surveyed	2231	2169

ensuring tofollowall 5-stepsoutlined in the readings. Pay special attention to explaining how you checked the conditions for the distribution that you name. Feel free to use StatCrunch to perform the calculations for you.