Astudy considered whether daily consumption of garlic could reduce tick bites. the study used a crossover design where half of the subjects used placebo first and garlic second and half the reverse. the authors described garlic being more effective with 53 subjects and placebo being more effective with 33 subjects. complete parts a through d below.

a. does this suggest a real difference between garlic and placebo, or are the results consistent with random variation?

b. state hypotheses for a large-sample two sided test?

c. find the test statistic value.

d. find the p-value.

the answer is b.)

< 1=< 2

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

part d

step-by-step explanation:

theresa talked her parents into getting sd cards for her phone and her brother’s phone. inserting an sd card into a phone gives it more storage. they both get 8-gigabyte sd cards. how many bits of storage come with each sd card? type your answer in both scientific and standard notation.

b.

step-by-step explanation:

i just know