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A simple random sample of 5 months of sales data provided the following information: Month: 1 2 3 4 5 Units Sold: 94 100 85 94 92 a. Develop a point estimate of the population mean number of units sold per month. b. Develop a point estimate of the population standard deviation. 14. BusinessWeek published information on 283 equity mutual funds (BusinessWeek, January 26, 2004). A sample of 40 of those funds is contained in the data set MutualFund. Use the data set to answer the following questions.
a. Develop a point estimate of the proportion of the BusinessWeek equity funds that are load funds.
b. Develop a point estimate of the proportion of funds that are classified as high risk.
c. Develop a point estimate of the proportion of funds that have a below-average risk rating.
Construct a scatter plot and calculate the slope and intercept in this problem
Using the confidence interval method, test the claim that the average age of consumers is at least 30 years ( α= 0.05). Test the same claim by using the test statistics method ( Z or T test).
The local municipality claims that since the percentage of intersections that had an accident last year decreased from the prior year, the city is now safer. What are the hypotheses for this situation? Is the city really safer?
Does knowing high school seniors' IQ scores indicate anything about their high school graduation grade point averages and Is there a relationship between a person's sociability and cheerfulness
An insurance company has gathered the following information regarding the number of accidents reported per day over a period of 100 days.
rc-cars purchases batteries which they include with their remote control cars for sale to the consumer. bill the owner
Scores are whole values. The top 3% receive $500.00. what is the minimum score you would need to receive this award?
What is the probability that next week's show will: Have between 30 and 37 million viewers? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.
We are interested in comparing the proportions of males and females who think earning a large salary is very important to them. I surveyed 200 of each gender and recorded their answers to the question as yes or no.
Find out the mean, median and mode for the given data
Is there evidence that the population mean amount is different from 8.17 ounces? (Use a 0.05 level of significance.)
Typically, these children must have IQ scores in the top 5%. What is the minimum score to qualify a child for these programs?
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