Conduct the following test at the alpha equals0.05 level of significance by determining

(a) the null and alternative hypotheses,
(b) the test statistic, and
(c) the critical value.

assume that the samples were obtained independently using simple random sampling. test whether p 1 not equals p 2 . sample data are x 1 equals 28 , n 1 equals 255 , x 2 equals 36 and n 2 equals 302 .

(a) choose the correct null and alternative hypotheses below.

a. upper h 0 : p 1 equals p 2 versus upper h 1 : p 1 greater than p 2 your answer is correct.
b. upper h 0 : p 1 equals 0 versus upper h 1 : p 1 not equals 0
c. upper h 0 : p 1 equals p 2 versus upper h 1 : p 1 not equals p 2
d. upper h 0 : p 1 equals p 2 versus upper h 1 : p 1 less than p 2
(b) determine the test statistic. z0equals nothing (round to two decimal places as needed.)

z=0.6074

Step-by-step explanation:

Given that we have to Conduct the following test at the alpha equals0.05 level of significance by determining

Test whether p 1 not equals p 2 .

Suitable hypotheses would be

B. Upper H 0 : p 1 equals 0 versus Upper H 1 : p 1 not equals 0

(Two tailed test at 5% level)

Group      I      II                total

n           255   305           557

x              28     36             64

p          0.1098  0.1180     0.1149

p difference = -0.0082

Std error for difference =

Test statistic Z = p diff/std error

= 0.6074

p =0.2718

Since p >alpha we accept H0

z=0.6074

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

i dont know

step-by-step explanation: