The cost for 8 guitar lessons is $216. The cost for 15 lessons is $370. A) write a linear equation in slope intercept form to model the situation. let Y= total cost and X= number of lessons

B) how much does each lesson cost?

C) how much would 20 lessons cost?

D) how much does it cost to sign up for guitar lesson before your first lesson?

The null and alternate hypotheses are: h0: μ1 ≤ μ2 h1: μ1 > μ2 a random sample of 22 items from the first population showed a mean of 113 and a standard deviation of 12. a sample of 16 items for the second population showed a mean of 99 and a standard deviation of 6. use the 0.01 significant level. find the degrees of freedom for unequal variance test. (round down your answer to the nearest whole number.) state the decision rule for 0.010 significance level. (round your answer to 3 decimal places.) compute the value of the test statistic. (round your answer to 3 decimal places.) what is your decision regarding the null hypothesis? use the 0.01 significance level.