1. Two students went to McDonald's. They each bought the same snack, which included a shake
1 answer:
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Remember that for a graphic of a trigonometric functions of the form 
is the amplitude of the function
is the midline of the trigonometric function
We know form our problem that
, so the amplitude of our function is 5. We also know that the 
. So the midline of our function is the line 
.
Using those two features we can conclude that the graph <span>that shows the height of the water at the dock at any time after midnight is: </span>
We know form our problem that
Using those two features we can conclude that the graph <span>that shows the height of the water at the dock at any time after midnight is: </span>
Answer:
The decision rule is
Fail to reject the null hypothesis
The conclusion is
There is no sufficient evidence to show that the proportion of all children in the United States who currently live with at least one grandparent is higher than 11%
Step-by-step explanation:
From the question we are told that
The population proportion is
The sample size is n = 1640
The number found to be living with at least one grandparent is
The level of significance is
The null hypothesis is
The alternative hypothesis is
Generally the sample proportion is mathematically represented as
=>
=>
Generally the test statistics is mathematically represented as
=>
=>
From the z table the area under the normal curve to the left corresponding to 0.0077 is
From the value obtained we see that hence
The decision rule is
Reject the null hypothesis
The conclusion is
There is no sufficient evidence to show that the proportion of all children in the United States who currently live with at least one grandparent is higher than 11%