1. The owner of a specialty coffee shop wants to study coffee purchasing habits of customers...
1. The owner of a specialty coffee shop wants to study coffee purchasing habits of customers of her shop. She selects a random sample of 60 customers during a certain week, with the following results.
_
Amount spent: X = $7.25, S = $1.75
31 customers say they “definitely will” recommend the specialty coffee shop to family and friends.
- At the .10 level of significance, is there evidence that more than 50% of all her customers “definitely will” recommend the specialty coffee shop to family and friends.
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1. The owner of a specialty coffee shop wants to study coffee
purchasing habits of customers...
Name : The owner of a specialty coffee shop wants to study coffee purchasing habits of...
Name : The owner of a specialty coffee shop wants to study coffee purchasing habits of customers of her shop. She selects a random sample of 60 customers during a certain week, with the following results. Amount spent: 7.25. S - $1.75 31 customers say they "definitely will" recommend the specialty coffee shop to family and friends. a) At the .05 level of significance is there evidence that the population mean amount spent by all of her customers is different...
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THE OWNER OF A GASOLINE STATION WANTS TO STUDY GASOLINE PURCHASING HABITS OF MOTORISTS AT HIS STATION. HE SELECTS A RANDOM SAMPLE OF 60 MOTORISTS DURING A CERTAIN WEEK, WITH THE FOLLOWING RESULTS: THE AMOUNT PURCHASED WAS A SAMPLE MEAN = 11.3 GALLONS; S = 3.1 GALLONS. ELEVEN MOTORISTS PURCHASED PREMIUM-GRADE GASOLINE. FIND: AT THE 0.05 LEVEL OF SIGNIFICANCE , IS THERE EVIDENCE THAT THE POPULATION MEAN PURCHASED WAS DIFFERENT FROM 10 GALLONS ?
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a grocery store owner wants to know if a new marketing
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Name : The owner of a specialty coffee shop wants to study coffee purchasing habits of customers of her shop. She selects a random sample of 60 customers during a certain week, with the following results. Amount spent: 7.25. S - $1.75 31 customers say they "definitely will" recommend the specialty coffee shop to family and friends. a) At the .05 level of significance is there evidence that the population mean amount spent by all of her customers is different...
At a certain coffee shop, all the customers buy a cup of coffee and some also buy a doughnut. The shop owner believes that the number of cups he sells each day is normally distributed with a mean of 340 cups and a standard deviation of 21 cups. He also believes that the number of doughnuts he sells each day is independent of the coffee sales and is normally distributed with a mean of 150 doughnuts and a standard deviation...
A businesswoman is considering whether to open a coffee shop in a local shopping center. Before making this decision, she wants to know how much money people spend per week at coffee shops in that area. She took a random sample of 26 customers from the area who visit coffee shops and asked them to record the amount of money in dollars) they would spend during the next week at coffee shops. At the end of the week, she obtained...
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a grocery store owner wants to know if a new marketing
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Take+home+Exam+1-SPR2019) Mailings ReviewView Normal No Spacing Heading 1 Heading 2 A grocery store owner wants to know if a new marketing campaign will improve the average number of customers who visit the store on a given day. The owner knows that historically they average 490.2 customers per day. After the campaign the owner randomly samples 28 days and finds an average of 512.1 customers with a standard...
ror the following problems, show all work AND clearly state your conclusion. Use the method that requested for each problem, each problem is worth 2 points. 1. Since many people have trouble programming their home electronics, an electronics company na developed a set of instructions they hope will be easier. The goal is to have at least 96% of customers report they found the programming 'easy. The company tests it on 200 people, 194 of them reported easy. At the...
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