The null and alternative hypotheses are given. determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. what parameter is being tested? upper h 0: mu equals 105 upper h 1: mu not equals 105

   Two-tailed test.

Population mean is the parameter which is tested.

Step-by-step explanation:

Given :  

We know that , the alternative hypothesis () indicates kind of the hypothesis test we need to perform whether left-tailed, right-tailed, or two-tailed.

Here, the alternative hypothesis () is two-tailed, so the hypothesis test is a two-tailed test.

Also, the parameter present in the hypothesis is which is a symbol to represent the population mean.

Thus , Population mean is the parameter which is tested.

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.

answer: for each 3 girls there is 2 boys . 3: 2

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