Question
One study claimed that 91% of college students identify themselves as procrastinators. A professor believes that the claim regarding college students is too high. The
One study claimed that 91% of college students identify themselves as procrastinators. A professor believes that the claim regarding college students is too high. The professor conducts a simple random sample of 161 college students and finds that 140 of them identify themselves as procrastinators. Does this evidence support the professor's claim that fewer than 91% of college students are procrastinators? Use a 0.02 level of significance.
Step 1 of 3:
State the null and alternative hypotheses for the test. Fill in the blank below.
H0:p=0.91
Ha:p_____________0.91
One study claimed that 91% of college students identify themselves as procrastinators. A professor believes that the claim regarding college students is too high. The professor conducts a simple random sample of 161 college students and finds that 140 of them identify themselves as procrastinators. Does this evidence support the professor's claim that fewer than 91% of college students are procrastinators? Use a 0.02 level of significance.
Step 2 of 3:
Compute the value of the test statistic. Round your answer to two decimal places.
One study claimed that 91% of college students identify themselves as procrastinators. A professor believes that the claim regarding college students is too high. The professor conducts a simple random sample of 161 college students and finds that 140 of them identify themselves as procrastinators. Does this evidence support the professor's claim that fewer than 91% of college students are procrastinators? Use a 0.02 level of significance.
Step 3 of 3:
Draw a conclusion and interpret the decision.
A.) We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 0.02 level of significance that fewer than91% of college students are procrastinators.
B.) We reject the null hypothesis and conclude that there is sufficient evidence at a 0.02 level of significance that fewer than91% of college students are procrastinators.
C.) We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance that fewer than91% of college students are procrastinators.
D.) We reject the null hypothesis and conclude that there is insufficient evidence at a 0.02 level of significance that fewer than91% of college students are procrastinators.
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