<h2>
Answer with explanation:</h2>
Let p be the population proportion.
Then, Null hypothesis : 
Alternative hypothesis : 
Since the alternative hypothesis is right tailed , then the hypothesis test is a right tailed test.
Given : A random sample of 200 high school seniors from this city reveals that 162 plan to attend college.
i.e. n = 200 > 30 , so we use z-test (otherwise we use t-test.)

Test statistic for population proportion :


Thus, the z-value of the sample test-statistic = 0.72
P-value for right tailed test =

Since the p-value is greater than the significance level (0.05) , so we fail to reject the null hypothesis.
Hence, we conclude that we do not have sufficient evidence to support the claim that the percentage has increased from that of previous studies.
Answer:
4.11
Step-by-step explanation:
7(p-9)=-34.3
first you want to apply what is outside of the parenthesis to the inside of the parenthesis. After applying you would get
7p-63=34.3
Next you wanna get the variable to one side and the whole numbers to the other side. to do this you add 63 to each side, you end up with
7p=28.8. Then you want to get p by itself. In order for this to happen you divide each side by 7 to get p=4.114285714
Answer:
option 2
Step-by-step explanation:
consider the coordinates A (- 3, 4 ) and A' (- 1,
)
since the dilatation is centred at the origin, then corresponding coordinates are multiples/ divisors of each other, then image to original gives scale factor.
scale factor =
=
=
and
= 
similarly B (1, - 2 ) and B' (
, -
)
=
and
= 