Mathematics, 13.03.2020 05:51 minmaddiee
A marketing consultant is hired by a major restaurant chain wishing to investigate the preferences and spending patterns of lunch customers. The CEO of the chain hypothesized that the average customer spends at least $13.50 on lunch. A survey of 25 customers sampled at one of the restaurants found the average lunch bill per customer to be ¯ x = $ 14.50 . Based on previous surveys, the restaurant informs the marketing manager that the standard deviation is σ = $ 3.50 . To address the CEO’s conjecture, the marketing manager decides to carry out a test of hypothesis. The null hypothesis is given by H 0 : μ = 13.50 . The hypothesis test is set up to provide the marketing manager with: evidence against the null hypothesis in favor of the alternative. evidence in favor of the null hypothesis. proof that the null hypothesis is true. evidence against the alternative hypothesis in favor of the null hypothesis.
Answers: 1
Mathematics, 21.06.2019 15:00, vnzgirl
1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.
Answers: 1
Mathematics, 21.06.2019 22:10, markayla101326
In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2
Answers: 2
A marketing consultant is hired by a major restaurant chain wishing to investigate the preferences a...
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