Football team members suspect the coin used for the coin toss at the beginning of their games is unfair. they believe it turns up tails more often than it should if it were fair. the coach of the team decides to flip the coin 100 times and count the number of tails. his trial results in 55 tails. he decides to carry out a significance test. what is the p-value he obtains and the general conclusion that can be made at a 95% significance level?

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step-by-step explanation:

a and c

step-by-step explanation:

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true