In recent years, the interest rates on home mortgages have declined to less than 6%. However, a recent study shows that the rate charged on credit card debt is more than 14%. A sample of 10 credit
cards showed that the mean rate charged is 15.64% with a standard deviation of 1.561%. At 1% level
of significance, is it reasonable to conclude the mean rate charged is greater than 14%?

Yes it is reasonable to conclude the mean rate charged is greater than 14%

Step-by-step explanation:

From the question we are told that

    The  population mean is  

    The sample size is  

    The  sample mean is  

     The  standard deviation is  

     The level of significance is  

The null hypothesis is    

The  alternative hypothesis is  

 Generally the test statistic is mathematically represented as

substituting values

Now the p-value obtained from the z-table is

Since the then we reject the null hypothesis, hence we can conclude that  the mean rate charged is greater than 14%

mxb67

step-by-step explanation:

hi there!

the answer to this question is d: 35

step-by-step explanation:

5 to the power of 2 is 25

2 multiplied by 5 is 10

then you add the 2 numbers and you get 35