Arandom sample of size 15 is selected from a normal population. the population standard deviation is unknown. assume the null hypothesis indicates a two-tailed test and the researcher decided to use the 0.10 significance level. for what values of t will the null hypothesis not be rejected? a. to the left of -1.645 or to the right of 1.645b. to the left of -1.345 or to the right of 1.345c. to the left of -1.282 or to the right of 1.282d. between -1.761 and 1.761

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?

What is the base of the exponential expression of 4 to the power of 5

The directions on a sewing pattern say to cut an extra 15% of fabric to account for error.chloe needs 0.75 yard of fabric to make a skirt, and she cuts 0.1125 yard.did chloe cut the correct amount of fabric? why or why not? a. chloe cut enough fabric because she cut the amount of fabric for the skirt. b. chloe cut enough fabric because she cut enough fabric for the skirt and the amount of extra fabric. c. chloe did not cut enough fabric because she only cut the amount of fabric for the skirt. d. chloe did not cut enough fabric because she only cut the amount of extra fabric.