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A local supermarket has contracted for floor cleaning and polishing to be done each evening by a small work crew using mechanized equipment. After the crew has performed the service for several weeks and settled into a routine, the supermarket manager has timed the most recent jobs to get a better idea as to the nature of the distribution of times for performing the task.
Over the past week, the cleaning and polishing times have been 61, 44, 57, 49, 59, 43, and 42 minutes.
Using the 0.10 level of significance, apply the Kolmogorov-Smirnov test for normality in examining whether the population of cleaning times might be normally distributed.
a company that manufactures video cameras produces a basic model and a deluxe model. over the past year 30 of the
in a survey of undergraduate library usage it was found that 76 of seniors 59 of juniors 50 of sophomores and 28 of
Does there appear to be a linear relationship between the screen size and the price?b. Which variable is the "dependent" variable?
represent a summary of a random sample of size 50 from a Poisson distribution. Find the maxim um likelihood estimate of Pr ( X = 2).
Sstandard deviation of the test scores are 74 and 2, respectively, and the distribution of scores is bell-shaped and symmetric. Suppose the trainee in question received a score of 69. Compute the trainee's z-score.
A couple decides to save to buy a car in two years' time. They will invest a fixed sum into a two-year fixed deposit savings account that pays interest at 12% p.a. How much would they need to invest today to have R150 000 at the end of the two-yea..
the null hypothesis of an f-test comparing three group means is that all three group means are equal. what is the
Mean and standard deviation for new sample were then computed to be M _ 6 and s _ 3. Write down the values of mean and standard deviation for original sample?
You will be using the 10 scholarly resources (empirical articles or dissertations) and a draft of your 10 Strategic Points starting Tuesday to work on developing or revising your 10 Strategic Points and applying them to your Prospectus or Proposal..
If the total of the accounts receivable is only $1,000,000 (but the standard deviation was correct), what is the probability the total of the sample would be less than $9,900.
a drug tester claims that a drug cures a rare skin disease 84 of the time. the claim is checked by testing the drug on
a consumer watchdog organization is concerned about credit card debt. a survey of 10 young adults with credit card debt
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