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Chicken Delight claims that 92% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 80 orders revealed that 72 were delivered within the promised time. At the 0.01 significance level, can we conclude that less than 92% of the orders are delivered in less than 10 minutes?
a. What is the decision rule? (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)
Reject H0 if z <
b. Compute the value of the test statistic. (Negative amount should be indicated by a minus sign. Round the intermediate values and final answer to 2 decimal places.)
Value of the test statistic
c. What is your decision regarding the null hypothesis? (Click to select)
Cannot reject
Reject
H0 : π ≥ 0.92
A parent is deciding which babysitter to use in the neighborhood. Babysitter A charges $20 per hour and a base rate of $60 per day. Babysitter B charges a base rate of $50 per day and $25 per hour.
The legitimate theater in New York gives both afternoon and evening performances on Saturdays. A man comes to New York one Saturday to attend 2 performances
Confirm whether given random variable is binomial distribution or not. If this experiment is finished with replacement, explain why.
Write down the advantages and disadvantages of using computer software for decision making.
given the monthly incomes for 16 randomly selected people with a bachelors degree in business4832.15 5222.36 4917.71
The following data show the cost of electricity during August 2010 for a random sample of 50 one-bedroom apartments in a large city:
What assumption tests should be used? A fifth grade science teacher want to know if there is a relationship between final exam scores and overall course points after adjusting for a quiz score.
Some components of a two-component system fail after receiving a shock. Shocks of three types arrive independently and in accordance with Poisson processes. Shocks of the ?rst type arrive at a Poisson rate λ1 and cause the ?rst component to fail. ..
in china the probability of a baby being a boy is 0.5845. couples are allowed to have only one child. if relatives give
1.Brandon Lang is a creative entrepreneur who has developed a novelty soap item called Jackpot to target consumers with a gambling habit.
some studies have shown that in the united states men spend more than women buying gifts and cards on valentines day.
a. Explain the difference between an outlier and an influential point.
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