The average cost of a speeding ticket plus court fees is approximately $120. A random sample of 40 speeding ticket court cases showed that the mean cost was $125. The population standard deviation is $11. At a-0.05 level of significance, is the average cost greater than $120? Assume the variable is normally distributed. a. State the alternative hypothesis H1: H> b. Calculate the test statistic. (Provide your answer with two decimal places) c. Calculate the P-value/ Critical value. (Provide your answer with three decimal places) d. Do you reject the null hypothesis? (If the answer is yes, type "y", if the answer is no type "n")

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Q: it should be 35 ms

A:

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.