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PiggyBank has narrowed its options down to two incentive plans:
A. cash back when the consumer makes an online purchase; and B cash back when consumer makes a purchase at a clothing store.
The bank doesn't know whether consumers would shop online more than at clothing stores.
Information Experts has placed you in a group to develop null and alternative hypotheses to help the bank determine which option would provide the best incentive to consumers. Work with your group members to develop the null and alternative hypotheses. As a group, write a brief memo to the PiggyBank product development team describing your hypotheses and explaining how you arrived at them
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A researcher is looking at the relationship between home-schooling and achievement. She is hypothesizing that the home-schooled children will score higher than non home-schooled children on a standardized achievement test.
Compute the mean, variance and standard deviation for the grouped data. Based on the previous answer, how much could the realtor expect to make if he sells 3 houses?
Your friend tells you that the proportion of active Major League Baseball players who have a batting average greater than .300 is greater than 0.56, a claim you would like to test. The hypotheses for this test are Null Hypothesis: p ≤ 0.56, Altern..
In a survey of women in a certain country (ages 20-29), the mean height was 62.9 inches with a standard deviation of 2.81 inches.
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Test the claim that the actual percentage is 53%. Use a 0.10 significance level.
In standardized form, the normal distribution a) Has a mean of 0 and a standard deviation of 1 b) Has a mean of 1 and a variance of 0 c) Has an area equal to 0.5 d) Cannot be used to approximate discrete probability distributions
The condition for the question is that the deck of cards has 52 cards and among them are 12 face cards. What is the probability of choosing 6 face cards out of 8 chosen. Thru Binomial distribution holds( meaning with replacement)
A chemical process converts lead to gold. However, the production varies due to the powers of the alchemist. It is known that the process is normally distributed, with a standard deviation of 2.5 g. How many samples must be taken to be 90% certain..
Assuming that the process is operating correctly according to specifications, what is the probability that a sample will indicate that an adjustment is needed?
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