Question

The grades in various subjects of a students are given below .test at 5percent level of significance that there is a significant difference in grades.methematic 72 80 83 75 statistics 81 74 77 88 English 82 90 87 80 research 74 71 77 70

Answer 1

Use the following information to answer the next three exercises. A grocery store is interested in how much money, on average, their customers spend each visit in the produce department. Using their store records, they draw a sample of 1,000 visits and calculate each customer’s average spending on produce.

Answer 2

Answer:

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