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ADC supermarket accepts three types of credit cards, Master card, Visa and Tembo card. The sales manager is interested in finding out whether there is a difference in the mean amounts charged by customers on the three cards. A random sample of 18 credit cards purchases revealed these credit card amounts. At the level of 0.05, using ANOVA test can we conclude that, there is a difference in the mean amounts charged per purchase on the three cards? Would Tukey-Kramer test be appropriate? Why?
Master card 61 28 42 33 51 56
Visa card 85 56 44 72 98 56 72
Tembo card 61 25 42 31 29
1.sodas in a can are supposed to contain an average of 12 ounces. this particular brand has a standard deviation of 0.1
BSM333 Statistics for Business MMG 506 Quantitative Analysis for Managers Spring 2016. A research study was conducted to examine the efficacy of studying in groups. Students were randomly assigned to one of three groups: a single person group (indi..
Suppose that a random sample of 100 tires is checked. The average maximum temperature for adequate performance in the sample is found to be 121°F.
Test the hypothesis that there is a significant difference in mean ages of brides and grooms, using a significance level of 0.05.
Question 1: Critique and expand upon the statement: Every college graduate should understand the basic principles of the Operations function of a business.
test the claim that the population of kindergarden students has a mean grade point average of 2.25 versus a mean grade
If J&B reduces the calendar price to $1 at the end of July and can sell all surplus calendars at this price, how many calendars should be ordered?
Table shows data on the distribution of incomes before and after tax in the UK in 2000/2001. Using Lorenz curves analyse the data shown.
Level annual equivalence principle premiums are payable prior to failure.S how that for any nonnegative integer r, Var(rL) = 1/15.
Suppose a cellular telephone is equally likely to make zero handoffs (H0), one handoff (H1), or more than one handoff (H2).
A sample of 10 persons is used to measure the effectiveness of two massage techniques. The effectiveness of the techniques is measured by the number of days that pass by before the subjects feel the need for another massage session.
Estimate the true proportion of college students who believe in the possibility of haunted places with 99% confidence. According to Time magazine, 37% of americans believe that places can be haunted.
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