Exam 14: Tests of Hypotheses Based on Count Data

A drug company wants to know whether the probability is really 0.20 that one of their products will produce side effects. In a random sample of 150 consumers of the product, 42 were victims of side effects. Conduct the two-tailed test. Use $\alpha=0.01$ . State the hypothesis.

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Question 41

The symbol $x / n$ represents a sample estimate of __________.

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Question 42

A suntan lotion manufacturer wants to estimate the proportion of people who will get a tan by using their product. In a sample of 80 people, 50 were tanned by the product. Find a $98 \%$ confidence interval for the population proportion of people who will receive a tan from the lotion.

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Question 43

Showing 41 - 43 of 43

A drug company wants to know whether the probability is really 0.20 that one of their products will produce side effects. In a random sample of 150 consumers of the product, 42 were victims of side effects. Conduct the two-tailed test. Use $\alpha=0.01$ . State the hypothesis.

The symbol $x / n$ represents a sample estimate of __________.

A suntan lotion manufacturer wants to estimate the proportion of people who will get a tan by using their product. In a sample of 80 people, 50 were tanned by the product. Find a $98 \%$ confidence interval for the population proportion of people who will receive a tan from the lotion.

Introduction

Summarizing Data: Listing and Grouping

Summarizing Data: Measures of Location

Summarizing Data: Measures of Variation

Possibilities and Probabilities

Some Rules of Probability

Expectations and Decisions

Probability Distributions

The Normal Distribution

Sampling and Sampling Distributions

Problems of Estimation

Tests of Hypotheses: Means

Tests of Hypotheses: Standard Deviations

Analysis of Variance

Regression

Correlation

Nonparametric Tests

Filters

Exam 14: Tests of Hypotheses Based on Count Data

A drug company wants to know whether the probability is really 0.20 that one of their products will produce side effects. In a random sample of 150 consumers of the product, 42 were victims of side effects. Conduct the two-tailed test. Use α=0.01\alpha=0.01α=0.01 . State the hypothesis.

The symbol x/nx / nx/n represents a sample estimate of __________.

A suntan lotion manufacturer wants to estimate the proportion of people who will get a tan by using their product. In a sample of 80 people, 50 were tanned by the product. Find a 98%98 \%98% confidence interval for the population proportion of people who will receive a tan from the lotion.

Introduction

Summarizing Data: Listing and Grouping

Summarizing Data: Measures of Location

Summarizing Data: Measures of Variation

Possibilities and Probabilities

Some Rules of Probability

Expectations and Decisions

Probability Distributions

The Normal Distribution

Sampling and Sampling Distributions

Problems of Estimation

Tests of Hypotheses: Means

Tests of Hypotheses: Standard Deviations

Analysis of Variance

Regression

Correlation

Nonparametric Tests

Filters

A drug company wants to know whether the probability is really 0.20 that one of their products will produce side effects. In a random sample of 150 consumers of the product, 42 were victims of side effects. Conduct the two-tailed test. Use $\alpha=0.01$ . State the hypothesis.

The symbol $x / n$ represents a sample estimate of __________.

A suntan lotion manufacturer wants to estimate the proportion of people who will get a tan by using their product. In a sample of 80 people, 50 were tanned by the product. Find a $98 \%$ confidence interval for the population proportion of people who will receive a tan from the lotion.