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Cherry Berry Soda, Inc. claims that 15 percent of the population can identity its products. In efforts to boost their identity, Cherry-Berry employs a famous spokesperson to advertise. A survey is then taken to assess the results of the ad campaign. The results show that 17 percent of the 1000 respondents can identity Cherry-Berry products. Has the advertising campaign increased product identity or is the difference due to chance? Use the 0.10 significance level.
a. State the null and alternate hypotheses
Ho : H1:
b.State the decision rule.
c. Compute the value of the test statistic.
d. Estimate the p-value.
e. What is your decision regarding the null hypothesis? Interpret the result.
Determine a 95% confidence interval for true time battery pack can function before having to be recharged.
A roulette wheel has 38 slots, numbered 0, 00, and 1 to 36. The slots 0 and 00 are colored green, 18 of the others are red, and 18 are black.
the following data are from an independent-measures experiment comparing two treatment conditions. do these data
sports authority conducted a research about the demographics of their customers. for the study they collected data
A personnel manager is concerned about absenteeism. She decides to sample the records to determine if absenteeism is distributed evenly throughout the six-day workweek.
Find the probability that the amount of total claims over a period of 100 days is at least $150,000. (Use the fact that the sum of independent normally distributed random variables is normally distributed, with mean equal to the sum of the individ..
a study compared personality characteristics between 49 children of alcoholics and a control group of 49 children of
Explain how much should the airport authority be willing to pay for perfect information about the success of a brand new airport.
The population variances are 4.6 and 5.0 respectively. Using a level of significance of .05, is there evidence that the dual degree students are receiving lower grades? Fully explain your answer.
Draw the histogram for these data using an initial class boundary of and a class width of . Note that you can add or remove classes.
Create the 95% confidence interval for proportion of adults from Country A who say human activity contributes to global warming.
Mean caffeine content of 146 milligrams and a standard deviation of 22 milligrams. At α = .10, do you have enough evidence to reject the shop's claim?
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