g Use the data from Chapter 7 (Chapter 7 Review Exercise 43 – scores for grade 12 students on a science achievement test). An education publication claims that the mean score for grade 12 students on a science achievement test is 140. You want to test this claim. You randomly select 36 grade 12 test scores. The results are in the data file (Chapter 7 Review Exercise 43). At the 5% significance level, do you have enough evidence to reject the researcher’s claim?

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

40% off the regular price is the correct answer.

step-by-step explanation:

step-by-step explanation: