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Psychology and Human Behavior
Recently a panel of Canadian hotel industry IT executives reported on hotel technology trends. Although 22-30% of guests shop for a room using a mobile device, only 2% actually book a room using this technology. Many shoppers still feel insecure completing a transaction with a credit card via a mobile device.
Executives at Alt Hotels have decided to conduct a survey to determine whether hotel guests are becoming more comfortable booking a room using a mobile device. If the proportion (p 5 0.02) has increased, they intend to invest more money in this technology.
a. State the null and the alternative hypothesis.
b. Describe a type I error and a type II error in this context.
find the following percentiles for the standard normal distribution. interpolate where appropriate. round your answers
Calculate confidence intervals around the P and Q percentages using the following sample data: a. P = 75% , Q = 25% n= 678 @ 95% level of confidence b. P = 75%, Q = 25% n= 35 @ 95% level of confidence
What can we say about the probability distribution of x? Is it approximately normal? What are the mean and standard deviation?
(a) Identify the null hypothesis and alternative hypothesis. (b) Determine the test statistic. Show all work; writing the correct test statistic, without supporting work, will receive no credit.
The mean pulse rate for males. Define the null and alternative hypothesis. SD= 18.48 pulse rate for males 25.07 women.
for each of the following two problems analyze the data given in the related data le. write up your results in the
What is the probability that exactly two have been fined for violations within the past year? Write a Solution Trail for this problem.- What is the probability that all four have been fined for violations within the past year?
The carpeting department supervisor claims that the average number of days between the receipt of a complaint and its resolution is 20 days or less.
a chemical engineer wants to fit a straight line to the data found observing the tensile strength y of 10 test pieces
Whether the driver has a valid registration.- Whether the automobile is properly insured.- The time of day during the traffic stop: morning, afternoon or evening.
Perform an analysis of the problem facing Allied Insurance and prepare a report that summarizes your findings and recommendations.
In a recent year, Delaware had the highest per capita annual income with $51,803 (µ = 51,803) . If σ = $4850, find the mean that falls at the 85th percentile for a sample of 35 residents?
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