Multiple Choice
A marketing research company is estimating which of two soft drinks college students prefer. A random sample of 341 college students produced the following 95% confidence interval for the proportion of college students who prefer one of the colas: (.341, .451) . What additional assumptions are necessary for the interval to be valid?
A) No additional assumptions are necessary.
B) The sample proportion equals the population proportion.
C) The sample was randomly selected from an approximately normal population.
D) The population proportion has an approximately normal distribution.
Correct Answer:
Verified
Correct Answer:
Verified
Q5: In the construction of confidence intervals, if
Q114: Explain what the phrase 95% confident means
Q115: Find <span class="ql-formula" data-value="\mathrm {
Q116: A confidence interval was used to estimate
Q117: Given the values of <span
Q118: How much money does the average
Q120: Determine the confidence level for the
Q121: A newspaper reported on the topics
Q123: Find the value of <span
Q124: The mean systolic blood pressure for a