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lukranit [14]
4 years ago
6

The null and alternate hypotheses are: H0: π1 ≤ π2 H1: π1 > π2 A sample of 100 observations from the first population indicat

ed that X1 is 70. A sample of 150 observations from the second population revealed X2 to be 90. Use the .05 significance level to test the hypothesis. a. State the decision rule. (Round your answer to 2 decimal places.) H0 is rejected if z > b. Compute the pooled proportion. (Round your answer to 2 decimal places.) Pooled proportion c. Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic d. What is your decision regarding the null hypothesis? H0 is
Mathematics
1 answer:
nadezda [96]4 years ago
8 0

Answer:

365

Step-by-step explanation:

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Solve the system of equations. <br><br> y=x+5 <br><br> y=-x+7
spin [16.1K]

Answer:

(1,6)

x = 1, y = 6

See attachment for the graph

Step-by-step explanation:

y=x+5  

y=-x+7

Using the elimination process

     y=x+5  

-     y=-x+7

----------------

     0=2x-2

     2=2x

      1=x

      x=1

Substitute x = 1

y = x + 5

y = 1 + 5

y = 6

4 0
3 years ago
Read 2 more answers
Someone pls help me i can’t pass this quiz lol
Sophie [7]

Answer:

60ft

Step-by-step explanation:

h x 20 = 120

h=120/20

h=60

8 0
3 years ago
An ice cream machine produced 45 ice cream sandwiches per minute. After reconditing, its speed increased to 54 ice cream sandwic
Tanya [424]
<h2>Percent of speed the machine increase is 20%</h2>

<h2>Given that;`</h2>

Number of ice cream produced before = 45

Number of ice cream produced after = 54

<h2>Find:</h2>

Percent of speed the machine increase

<h2>Computation:</h2>

Percent of speed the machine increase = [Number of ice cream produced after - Number of ice cream produced before] / Number of ice cream produced before

Percent of speed the machine increase = [(54 - 45) / 45]100

Percent of speed the machine increase = [9 / 45]100

Percent of speed the machine increase = 20%

<h2>Learn more:</h2>

brainly.com/question/15013012?referrer=searchResults

4 0
2 years ago
Read 2 more answers
Find two integers whose sum is -9 and product is -10
BigorU [14]

Step-by-step explanation:

if the two integers are x and y

xy=-10

x+y=-9

x+(-10/x)=-9

x2+9x-10=0

(x-1)(x+10)=0

x=1 or x=-10

if x=1, y=-10

if x=-10, y=1

so the two integers are 1 and -10

5 0
3 years ago
HELP I ONLY HAVE 2 MINUTES UNTIL MY TESTS ARE OVER -8 ≤ -1<br> True<br> False
babunello [35]

Answer:

the answer is true

Step-by-step explanation:

the more you go negative the less it is so that's why -1 is greater than -8

6 0
3 years ago
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