In Exercises 5-8, identify the indicated values or interpret the given display. Use the nor- mal distribution as an approximation to the binomial distribution (as described in Part 1 of this section). Assume a 0.05 significance level and answer the following: a. Is the test two-tailed, left-tailed, or right-tailed? b. What is the test statistic? c. What is the P-value? d. What is the null hypothesis, and what do you conclude about it? e. What is the final conclusion?

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use a,b,c,d,e to answer number 8

In Exercises 5-8, identify the indicated values or interpret the given display. Use the nor-
mal distribution as an approximation to the binomial distribution (as described in Part I
of this section). Assume a 0.05 significance level and answer the following:
a. Is the test two-tailed, left-tailed, or right-tailed?
b. What is the test statistic?
c. What is the P-value?
d. What is the null hypothesis, and what do you conclude about it?
e. What is the final conclusion?
Transcribed Image Text:In Exercises 5-8, identify the indicated values or interpret the given display. Use the nor- mal distribution as an approximation to the binomial distribution (as described in Part I of this section). Assume a 0.05 significance level and answer the following: a. Is the test two-tailed, left-tailed, or right-tailed? b. What is the test statistic? c. What is the P-value? d. What is the null hypothesis, and what do you conclude about it? e. What is the final conclusion?
8. Public Speaking A TNS poll of 1000 randomly selected adults showed that 460 of them
say that public speaking is an activity that they dread most. Shown next is the StatCrunch
display resulting from a test of the claim that fewer than half of adults say that public speaking
is the activity that they dread most.
ere a ed to
"cer 01 sĩ
fly.
STATCRUNCH
Hypothesis test results:
p:proportion of successes for population
Ho:p=0.5
HA:p 0.5
Proportion Count Total Sample Prop.
Std. Err.
Z-Stat
Pvalue
460 1000
0.46 0.015811387 -2.529822 0.0057
Transcribed Image Text:8. Public Speaking A TNS poll of 1000 randomly selected adults showed that 460 of them say that public speaking is an activity that they dread most. Shown next is the StatCrunch display resulting from a test of the claim that fewer than half of adults say that public speaking is the activity that they dread most. ere a ed to "cer 01 sĩ fly. STATCRUNCH Hypothesis test results: p:proportion of successes for population Ho:p=0.5 HA:p 0.5 Proportion Count Total Sample Prop. Std. Err. Z-Stat Pvalue 460 1000 0.46 0.015811387 -2.529822 0.0057
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