Testing:
H0:μ=48H0:μ=48
H1:μ<48H1:μ<48
Your sample consists of 21 subjects, with a mean of 47.9 and standard deviation of 2.41.
Calculate the test statistic, rounded to 2 decimal places.
t=
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You are conducting a study to see if the probability of catching the flu this year is significantly less than 0.85. Your sample data produce the test statistic z=−1.495z=-1.495. Find the p-value accurate to 4 decimal places.